Symmetra MW UPS 800 kW 400 V Installation Guide
Symmetra MW UPS
800 kW400 V
InstallationGuide
Contents
Safety ......................................................................1
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Symbols used in this guide . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Overview......................................................3
UPS Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Inverter Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Input/Output Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Configuration 1 (Inverter Section placed to the left) . . . . . . . . 4
Configuration 2 (Inverter Section placed to the right) . . . . . . . 5
External Bypass Static Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . 6Serial number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Installation ................................................7
Typical UPS Wiring Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Power wiring overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
External disconnection switches . . . . . . . . . . . . . . . . . . . . . 8
Input/Output wiring precautions . . . . . . . . . . . . . . . . . . . . . 8
Top Cable Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Preparing for top cable entry (Default) . . . . . . . . . . . . . . . . . 9
Battery cable connections (top cable entry) . . . . . . . . . . . . . 10
PE and AC cable connections (top cable entry) . . . . . . . . . . . 12
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B i
Bottom Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Preparing for bottom cable entry . . . . . . . . . . . . . . . . . . . . 13
Battery cable connection (bottom cable entry) . . . . . . . . . . . 15
PE and AC cable connections (bottom cable entry) . . . . . . . . 17
External Bypass Static Switch Wiring . . . . . . . . . . . . . . . . . . . . 18Top cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Bottom cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Communication cable overview . . . . . . . . . . . . . . . . . . . . . . . . 21
Relay Board (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Location of optional Relay Board . . . . . . . . . . . . . . . . . . . . 22
Communication cables with optional Relay Board . . . . . . . . 23
Relay Board functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Specifications ........................................................ 27
Low-Impedance/High-Impedance Earthing . . . . . . . . . . . . . . . . 27
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28AC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
DC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AC Input External Bypass SSW . . . . . . . . . . . . . . . . . . . . . 29
Heat dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Torque specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Required Breaker Settings (400 V Systems) . . . . . . . . . . . . . . . 31Input and upstream breakers — minimum settings . . . . . . . . 31
Output and downstream breakers -— minimum settings . . . . 31
Appendix .............................................................. 33
System and Protective Earthing . . . . . . . . . . . . . . . . . . . . . . . . 33
TN Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reference to IEC 60364-4-41 413.1.3 . . . . . . . . . . . . . . . . . 34
Reference to IEC 60364-5-54 546.2.3 . . . . . . . . . . . . . . . . . 34
Additional requirements for generating sets (IEC 60364-5-55 551.4.2) . . . . . . . . . . . . . . . . . . . . . . . . . 35
Protective devices in TN systems . . . . . . . . . . . . . . . . . . . . 35
ii Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
TT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Reference to IEC 60364-4-41 413.1.4 . . . . . . . . . . . . . . . . . 37
Protective devices in TT systems . . . . . . . . . . . . . . . . . . . . . 37
IT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Reference to IEC 60364-4-41 413.1.5 . . . . . . . . . . . . . . . . . 39
Protective devices in IT systems . . . . . . . . . . . . . . . . . . . . . 40
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B iii
Safety
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
This guide contains important instructions for 800K800H that should be followed when handling the UPS, External Bypass Static Switch, Battery Enclosures, and Batteries.
Symbols used in this guide
WARNING!Indicates an electrical hazard, which, if not avoided, could result in injury or death.
CAUTION!Indicates a hazard, which, if not avoided, could result in injury or death.
Note
Indicates important information.
Indicates that more information is available on this subject in a different section of this manual.
See also
Indicates that more information is available on the same subject in a different manual.
Main Protective Earthing Terminal symbol.
Ground symbol.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 1
Safety: IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
Installation safety
Press the optional EPO (Emergency Power Off) button to switch off all AC and DC power supply to connected equipment in the room and to cut off the load supply. The EPO is typically located on a wall in the room in which the UPS is installed. See “Communication cable overview” section for information on how to wire the UPS to the EPO.
WARNING!Before installation work is carried out, check and test that all AC and DC power source breakers are in open position.
WARNING!Only personnel trained in the construction and operation of the equipment, and the electrical and mechanical hazards involved, may install or remove system components.
WARNING!Do not use High Voltage Testing Equipment. This equipement will destroy the electronic circuits in the unit.
CAUTION!The system is equipped with an optional auto-start function, enabling the system to start without any warning when power is applied.
CAUTION!All wiring to be in accordance with applicable national and/or local electrical wiring rules.
This unit contains components that are sensitive to electrostatic discharge (ESD). Follow proper ESD procedures to avoid severe damage to electronic components.
EPO
2 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
System Overview
UPS Sections
Serial number
The serial number is stated on the type label behind the finishing panel above the display unit. Remove finishing panel to see serial number.
Inverter Section
The Inverter Section regulates the UPS output and operates from battery power in the event of utility input loss.
Control Section
The Control Section controls and monitors the UPS and the Mains Static Switch Module (incorporated in the Control Section).
Input/Output Section
The Input/Output Section provides electrical connection of input and output.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 3
Configurations
The UPS system can be configured in two ways. The Inverter Section can be placed either to the left or to the right of the Control Section. The two configurations are shown below.
Configuration 1 (Inverter Section placed to the left)
ON OFF EMO
Weight: 610 kg
Weight: 480 kg
2032
mm
Width:1690 mm
Width:1012 mm
1067 mm
Width:1014 mm
Control Section Input/Output SectionInverter Section
Total weight of UPS sections:4220 kg
Total width of UPS sections:3716 mm
Weight: Without Power Modules: 2456 kgWith Power Modules: 3130 kg
4 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
System Overview: Configurations
Configuration 2 (Inverter Section placed to the right)
Weight: 610 kg
Weight: 480 kg
Width:1012 mm
Width:1014 mm
Control SectionInput/Output Section
Total width of UPS sections:3716 mm
Total weight of UPS sections:4220 kg
2032
mm
1067 mm
Weight: Without Power Modules: 2456 kgWith Power Modules: 3130 kg
Width:1690 mm
Inverter Section
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 5
External Bypass Static Switch
The External Bypass Static Switch (External Bypass SSW) transfers the load (manually or automatically) from the UPS to an alternate source without interrupting the supply to the load.
Serial number
The serial number is stated on the type label behind the finishing panel above the display unit. Remove finishing panel to see serial number.
~~
Weight:1 MW: 460 kg
2032 mm
Width:1016 mm
1067mm
External Bypass Static Switch
6 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation
Typical UPS Wiring Principle
Power wiring overview
See also
See separate guide on parallel operation for wiring overview in parallel systems.
Mai
nten
ance
Byp
ass
Pan
el (
MB
P)
Sym
met
ra M
W
Ext
erna
l Byp
ass
Sta
tic S
witc
h
Bat
tery
Bre
aker
Box
1
Bat
tery
Bre
aker
Box
2
Bat
terie
s 1
Bat
terie
s 2
MA
INS
6
6
9 9
1. 2. 3. 4. 5. 6. 7.
8. 9. 10.
11.
12.
13.
14.
MA
INS
SO
UR
CE
3X
40
0/2
30
V T
N-S
(P
RO
VID
ED
BY
OT
HE
RS
).
Q1
-
Q6
WIT
H 2
NO
/2N
C A
UX
ILIA
RY
CO
NT
AC
TS
.
Q7
, Q
8 D
C R
AT
ED
TH
ER
MA
L M
AG
NE
TIC
TR
IP M
OL
DE
D C
AS
E C
IRC
UIT
BR
EA
KE
R.
WIT
H 2
4V
OL
T D
C U
ND
ER
VO
LT
AG
E R
EL
EA
SE
(U
VR
) A
ND
2N
O/2
NC
AU
XIL
IAR
Y C
ON
TA
CT
S.
AL
L A
C P
OW
ER
CA
BL
ING
IS
L1
,L2
,L3
,N,P
E.
UP
S I
NP
UT
AN
D O
UT
PU
T C
ON
DU
CT
OR
S M
US
T B
E I
N S
EP
AR
AT
E C
AB
LE
RU
NS
.
UP
S A
ND
ST
AT
IC B
YP
AS
S W
ITH
ST
AN
D R
AT
ING
, Ic
w =
20
0 K
A
SE
E T
HE
IN
ST
AL
LA
TIO
N G
UID
E F
OR
TH
E B
RE
AK
ER
SE
TT
ING
S O
F Q
1,
Q3
, Q
4 A
ND
Q5
.
DC
CA
BL
ING
SH
OU
LD
BE
SE
GR
EG
AT
ED
FR
OM
AC
CA
BL
ING
SE
E B
AT
TE
RY
IN
ST
AL
LA
TIO
N I
NF
OR
MA
TIO
N
PO
WE
R W
IRIN
G A
ND
CO
NT
RO
L W
IRIN
G M
US
T B
E S
EG
RE
GA
TE
D.
AC
CIR
CU
IT C
AB
LE
LE
NG
TH
S (
INP
UT
AN
D O
UT
PU
T)
SH
OU
LD
BE
EQ
UA
L O
N A
LL
MO
DU
LE
S
DC
CIR
CU
IT C
AB
LE
LE
NG
TH
S S
HO
UL
D B
E E
QU
AL
ON
AL
L M
OD
UL
ES
= C
AB
LIN
G P
RO
VID
ED
BY
OT
HE
RS
INS
TA
LL
AT
ION
MU
ST
CO
MP
LY
WIT
H N
AT
ION
AL
AN
D L
OC
AL
EL
EC
TR
ICA
L R
UL
ES
.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 7
Electrical Installation: Typical UPS Wiring Principle
External disconnection switches
Input/Output wiring precautions
WARNING!The UPS has no internal manual disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power. Ensure that disconnection devices are available as separate components for this installation.
Note
The installer must provide each external disconnection device for this UPS system with labels displaying the following text:“Isolate the Uninterruptible Power Supply (UPS) as instructed in the User Guide before working on circuit.”
WARNING!Only personnel trained in the construction and operation of the equipment, and the electrical and mechanical hazards involved, may install or remove system components.
WARNING!Before installation work is carried out, check and test that all AC and DC power source breakers are in open position.
WARNING!Supply the UPS from a 3 × 400/230 V, L1, L2, L3, N, PE source or a high-impedance grounded system.
CAUTION!All wiring to be in accordance with applicable national and/or local electrical wiring rules.
Note
Use only copper conductors.
8 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Top Cable Entry
Preparing for top cable entry (Default)
Cable entry in Top Cover of Input/Output Section.
Loosen the 8 bolts in both cable entry covers (4 bolts in each cover). Drill holes for the grommets in areas shown. Install the grommets and re-fit the covers.
NN
L2 IN
L1 IN
L3 IN
L1 OUT
L2 OUT
L3 OUT
AC IN AC OUT
BAT 1 BAT 2
92 93
9590
91 94
L3 OUT
L2 OUT
92 93
90
91 94
95
L1 OUT
L3 IN
L2 IN
L1 IN
58 mm
44.45 mm44.45 mm
IN/OUT power cable (top entry)
AC IN cable entry
AC OUT cable entry
DC cable entry
DC cable entry
Top viewM6 Bolt
Top view
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 9
Electrical Installation: Top Cable Entry
Install cable lugs on busbars. Use M12 bolts. Feed cables through the top grommets.
Connect L1, L2 and L3 to busbars where indicated.
Battery cable connections (top cable entry)
WARNING!Make sure that the battery breakers are open (OFF) prior to running the cables.
CAUTION!Refer to the battery manufacturer’s installation manual.
CAUTION!The minimum DC voltage rating of the battery supply over-current protective device is 500 V.
Note
Over-current protection for the battery circuit is required by national wiring rules.
10 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Top Cable Entry
Feed the battery cables through the grommets
Connect cables from battery system.
Connect cables from battery system.
BAT1+
BAT2-
L3 In
L2 In
L1 In
L2 Out
L3 Out
L1 Out
BAT1-
BAT1+
BAT2+
BAT2—
N N
BAT1- BAT2+
IN/OUT power cable (top entry)
Top view of Input/Output Section
Battery 1(DC1 +/-)
Battery 2(DC2 +/-)
Input/Output Section
AC IN cable entry
AC OUT cable entry
DC cable entry
DC cable entry
M6 Bolt
58 mm
44.45 mm44.45 mm
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 11
Electrical Installation: Top Cable Entry
PE and AC cable connections (top cable entry)
Feed the AC and PE cables through the top of Input/Output Section.
Connect cables.
NNProtective Earthing conductors (red) for Battery 1 & AC IN
Protective Earthing conductors (red) for Battery 2 & AC OUT
Battery 2
Battery 1
Earthing conductor connected to suitable earth electrode TN-systems
Output circuit grounding bar.
PE
58 mm
44.45 mm44.45 mm
Bonding Jumper (TN-systems) to Input Neutral Bar
12 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Bottom Cable Entry
Preparing for bottom cable entry
Cable entry in bottom cover of Input/Output Section
AC IN AC OUT
N N
AC IN AC OUT
BAT 1 BAT 2
BAT 1 BAT 2
M14
M14
90 95
9392
91 94
M14
M14
M10
M10
M10M10
M10
M10
M10
L1 OUT
L2 OUT
L3 OUT
L1 IN
L2 IN
L3 IN
L3 OUT
L2 OUT
95
93 L1 OUT
L3 OUT
L2 OUT
95
93 L1 OUT
L3 IN
L2 IN
L1 IN
90
92
L3 IN
L2 IN
L1 IN
90
92
AC IN cable entry
AC OUT cable entry
DC cable entry
DC cable entry
IN/OUT power cable (bottom entry).
Top view
Top view
Top view M6 Bolt
58 mm
44.45 mm44.45 mm
Front view
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 13
Electrical Installation: Bottom Cable Entry
Preparation for bottom cable entry
a. Loosen bolts of both cable entry covers and remove.
b. Drill holes for grommets for AC, DC, and Output circuit grounding electrode cable in areas shown.
c. Install grommets.
d. Remount covers.
Interchange of AC IN busbars for bottom entry
a. Remove nuts from M14 bolts at busbars 90 and 92.
b. Remove bolt, washer and fuse.
c. Remove bolts from M10 at busbars 90 and 92.
d. Remove busbars 90 and 92 at AC IN.
e. Move the two front isolators in the topmost busbar position two steps to the front.
f. Move the two front isolators in the lowest busbar position two steps to the rear.
g. Install busbar 90 in original position of busbar 92.
h. Install busbar 92 in original position of busbar 90.
i. Reattach M14 bolts at busbars 90 and 92.
j. Install cable lugs on busbars using M12 bolts.
Interchange of AC OUT busbars for bottom entry
a. Remove nuts from M14 bolts at busbars 93 and 95.
b. Remove bolt, washer and fuse.
c. Remove bolts from M10 at busbars 93 and 95.
d. Remove busbars 93 and 95 at AC OUT.
e. Move the two front isolators in the topmost busbar position two steps to the front.
f. Move the two front isolators in the lowest busbar position two steps to the rear.
g. Install busbar 93 in original position of busbar 95.
h. Install busbar 95 in original position of busbar 93.
i. Reattach M14 bolts at busbars 93 and 95.
j. Install cable lugs on busbars using M12 bolts.
Moving busbar for grounding
a. Move busbar for grounding from upper right corner to lower left corner as illustrated.
Note
No drilling or cutting should take place inside the UPS.
14 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Bottom Cable Entry
Battery cable connection (bottom cable entry)
WARNING!Make sure that the battery breakers are open (OFF) prior to running the cables.
CAUTION!Refer to the battery manufacturer’s installation manual.
CAUTION!The minimum DC voltage rating of the battery supply over-current protective device is 500 V.
Note
Over-current protection for the battery circuit is required by national wiring rules.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 15
Electrical Installation: Bottom Cable Entry
Connect cables from battery system.
Connect cables from battery system.
BAT1+
BAT2-
BAT1- BAT2+
L3 In
L2 In
L1 In
L2 Out
L3 Out
L1 Out
BAT1-
BAT1+
BAT 2+
BAT2—
N N
58 mm
44.45 mm44.45 mm
IN/OUT power cable (bottom entry)
Bottom view of Input/Output Section
Battery 1(DC1 +/-)
Battery 2(DC2 +/-)
AC IN cable entry
AC OUT cable entry
DC cable entry
DC cable entry
M6 Bolt
16 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Bottom Cable Entry
PE and AC cable connections (bottom cable entry)
Feed the AC and PE cables through the bottom of Input/Output Section.
Connect cables.
NN
Protective Earthing Conductors for Battery 1 & AC IN
Protective Earthing Conductors for Battery 2 & AC OUT
Battery 2
Battery 1
Output circuit grounding bar
Earthing conductor connected to suitable earth electrode TN-systems
Output circuit grounding bar
58 mm
44.45 mm44.45 mm
PE
Bonding Jumber (TN-systems) to Input Neutral Bar
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 17
External Bypass Static Switch Wiring
WARNING!Before installation work is carried out, check and test that all AC and DC power source breakers are in open position.
WARNING!Use only manual reset protection as input over-current protection.
WARNING!Over-current protection required by national wiring rules.
WARNING!The UPS has no internal manual disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power. Ensure that disconnection devices are available as separate components for this installation.
CAUTION!The External Bypass Static Switch is not provided with built-in backfeed protection. Use suitable breakers with a minimum of 0.8 in/20 mm air gap and trip function. The breaker is controlled from the External Bypass SSW and will be tripped in case of backfeed.
Note
The installer must provide each external disconnection device for this UPS system with labels displaying the following text:“Isolate the Uninterruptible Power Supply (UPS) as instructed in the User Guide before working on circuit.”
Note
The installation of the External Bypass Static Switch must comply with local and national regulations.
Note
Run matched set of phase cables in the same cable run(s).Do not separate phases into different cable runs.
Note
Use only copper conductors.
Electrical Installation: External Bypass Static Switch Wiring
Top cable entry
Loosen the 8 screws to remove top covers. Drill holes for grommets. Re-fit the covers and install the grommets.
Feed the cables through the grommets. Connect cables at cable connection points.
Connect grounding electrode conductor to busbar locations.
58 mm
44.45 mm44.45 mm
X022
X021
X007
X010
X011
X008B
X008A
X012
X013
X014A
X014B
X017
X40
5
~~
Normal
UPS SummaryNormal
L1
IN
L2
IN
L3
IN
L1
OU
T
L2
OU
T
L3
OU
T
L1 IN
L1 OUT
L2 IN
L2 OUT
L3 IN
L3 OUT
PE
Top view of top cable entry
Port for communication cables
Top view of AC IN & OUT cable connections
Ext. Bypass SSW
Note
No drilling or cutting should take place over the top of the External Bypass SSW.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 19
Electrical Installation: External Bypass Static Switch Wiring
Bottom cable entry
Loosen the 8 screws to remove bottom covers. Drill holes for the grommets. Re-fit the covers and install the grommets.
Feed the cables through the grommets. Connect cables at cable connection points.
Connect grounding electrode conductor to busbar locations.
~~
Normal
UPS SummaryNormal
L1
IN
L2
IN
L3
IN
L1
OUT
L2
OUT
L3
OUT
X022
X021
X007
X010
X011
X008B
X008A
X012
X013
X014A
X014B
X017
X40
5
L1 IN
L1 OUT
L2 IN
L2 OUT
L3 IN
L3 OUT
Top view of bottom cable entry
Communication cable Port
Top view of AC IN & OUT bottom cable connections
PE
58 mm
44.45 mm44.45 mm
Ext. Bypass SSW
Note
No drilling or cutting should take place inside the External Bypass SSW.
20 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Communication cable overviewC
onne
ctio
n pl
ane
0P09
57
X131
X130
ExternalEPO
placed onwall
X133A 21X185
UPS
EM
O (
Dis
play
)
X134A
X1281
1 2
2
X1291
2
Bac
kfee
d pr
otec
tion
EPO out
EPO out
Con
nect
ion
plan
e0P
0957
External Bypass Static Switch
X128
X12
6A
X12
7A
X129
X131
X130
1
2
1
2
EM
O (
Dis
play
)
X134A
MBP CAN I/O board1
Maintenance Bypass Panel
Maintenance Bypass Panel
0P4533
C2
43
C1
21
X17
8
61
23
45
X17
3M
BP
Bre
aker
s
X17
6
87
109
1211
X134A
X134B
Terminator0M-1878
56
Q2
34
12
Q1
X1771
2X177
1
2
X1771
2
X134A
X1281
2
X129
710
11
X17
3
MB
PB
reak
ers
X172Lamps
H6
109
H5
87
H4
65
H3
43 3 41 2
Q5
X176
11 1221
C2
43
C1
21
X17
8
X175
12
Norm.op
Relay output
X174
12
Earth fault sensor
5 6
Q6
Q6
X1771
2
Q5
912
Q4
8
Q3
65
43
21
Q1
21
X175
12
Norm.op
Relay output
X174
12
Earth fault sensor
X172Lamps
X128
12
X129
12
MBP CAN I/O board 20P4533
4321 121187 10965
X134B
Terminator0M-1878
Q2
+
-
External Lampsupply V r V oMax. 250V 5A
+ - + - + - + -
24VShunt trip forback feedprotection
+
-
-+
+
-
+-
+
-
+
-
-
+
+ - + - + -
24V
Shunt trip
X12
6B
X12
7B
X12
6B
X12
7B
X12
6A
X12
7A
1 42 3X170
1 42 3X170
X186
Q7
1 2 3 4
Q8
X182
X133A
12
X185
Battery CAN I/O boardID 0
0P4512
X18
01
42
3
X133B
Fus
e1
1 2
Fus
e2
3 4
Fus
e3
5 6
Fus
e4
7 8
1 2 3X183
H7
H8
4
+ - + -
31
Temp sensor+
+
42 -X18
1
Temp sensor
NTC
NTC-
31
Q8
Q7
UVR+
+
42
UVR
-
-
X18
4DC
DC
DC DC
AC
Note 1
Note 1
Note 3
Note 2
Note 3
Note 1: Contact APC Application Team for correct sizing.Note 2: H7, H8 = 5V LEDNote 3: Q2, Q4 and Q6 are optional. If Q2 is not present pins 3 and 4 must be shorted on both boards. If Q4 is not present pins 7 and 8 must be shorted on both boards. If Q6 is not present pins 11 and 12 must be shorted on both boards.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 21
Relay Board (Optional)
Location of optional Relay Board
12
31
23
12
31
23
12
31
23
NC
3
12
31
23
22 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Relay Board (Optional)
Communication cables with optional Relay Board
Shunt trip 24V
External Lampsupply V or V
Max. 250V 5A
DC
DC
AC
AC
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 23
Electrical Installation: Relay Board (Optional)
Relay Board functions
The Relay Board informs the user of the operation mode, status, and alarm conditionsand has 8 ports on the input side and 16 output terminals.
Note
Use Normally Closed (NC) contacts for Fail safe Mode and Normally Open (NO) for Active on.
Relay ID Name Events that will trigger the alarm Mode Comment
K1 Common Alarm • Any of the functions below, except relays K8, K9, K10, K11;
• Inverter section fault;• Main PSU fault;• System locked in operation mode;• Internal memory fault;• Internal communication fault.
Fail safe Warning
K2 Battery voltage out of tolerance
• DC voltage is too high (shut down);• DC voltage is under warning level;• DC voltage is low (shut down).
Fail safe Warning
K3 Mains out of tolerance • Mains voltage RMS value is out of tolerance;
• Mains waveform not accepted (fast detector);
• Mains frequency is out of tolerance.
Fail safe Warning
K4 Bypass out of tolerance • Bypass voltage RMS value is out of tolerance;
• Bypass waveform not accepted (fast detector);
• Bypass frequency is out of tolerance.
Fail safe Warning
K5 Battery condition fault • Battery monitor has detected a weak battery;
• Battery monitor has detected a defective battery.
Fail safe Fault
K6 Battery disconnected • Battery breaker tripped/open. Fail safe Fault
K7 System overload • Output load exceeded 100%;• Delta Inverter current limiter is active;• Main Inverter current limiter is active.
Fail safe Fault
K8 Output out of tolerance • Output voltage RMS value is out of tolerance;
• Output waveform not accepted (fast detector);
• Output frequency is out of tolerance.
Fail safe Fault
K9 Normal operation • UPS is running in normal operation. Active on Opr. mode
K10 Battery operation • UPS is running in battery operation. Active on Opr. mode
24 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Relay Board (Optional)
K11 Bypass operation • UPS is running in normal operation/bypass operation according to AS400/Novell.
Active on Opr. mode
K12 Maintenance bypass ON • The maintenance bypass switch is active. Active on Opr. mode
K13 Stand-by operation • UPS is in stand-by operation. Active on Opr. mode
K14 Boost charge operation • UPS is boost charging the batteries. Active on Opr. mode
K15 Fan fault • Blocked or faulty fan. Fail safe Fault
K16 High equipment temperature or inverter fuse blown
• Static Switch temperature is high;• Main Inverter failure (high temperature
or blown fuse);• Delta Inverter temperature is high;• Magnetics temperature is high;• Isolation Transformer temperature is high
(optional);• Battery temperature is high.
Fail safe Warning
IN1 Generator active • System on generator System is running on generator.Battery charging is derated.
IN2 Battery room ventilation fault
• Battery room ventilation Ventilation fault in battery room.Battery charging is off.
IN3 - IN8
Reserved for future use
Relay ID Name Events that will trigger the alarm Mode Comment
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 25
Specifications
Low-Impedance/High-Impedance Earthing
The Symmetra® MW is easily integrated into either a solid grounded system, or a high-impedance grounded system.
In a solid grounded system, the neutral power source (mains, generator, or UPS) is solidly grounded. In the event of a down-stream ground fault, the fault current will have a path back to the source, and the over-current device feeding the faulted part of the installation will trip and isolate the fault.
In a high-impedance grounded system, the source is grounded with an impedance (grounding resistor). In the event of a down-stream fault, the fault current will be limited by the impedance of the grounding resistor. The value of a high-impedance system is its ability to maintain operation with a given system fault to ground, i.e. the over-current device will only trip at line-to-line faults or double ground faults. For a high-impedance system to provide enhanced power system reliability and availability, a ground-fault monitoring/alarm system is required.
Note
Grounding electrode conductor to be supplied by the customer.
For more information refer to “Appendix” in Installation Guide.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 27
Electrical Specifications
AC Input
WARNING!Supply the UPS from a dedicated, 3 × 400/230 V, L1, L2, L3, N, PE source or a high-impedance grounded system.
CAUTION!Ensure clockwise phase rotation (L1, L2, L3) of input voltages.
CAUTION!AC and DC disconnect switches and over-current protection must be included in the installation.
Note
All wiring must comply with all applicable national and/or local electrical codes.
Note
Max. prospective RMS short-circuit current on input terminals: 200 kAMax. prospective RMS short-circuit current on DC terminals: 50 kA
AC Input
Input rating 800 kW/kVA
Power Factor 1
Input Voltage 380 V
Input Frequency 50 Hz
Nominal input current (note 1) 1132 A
Input Current Limitation (note 2) 1422 A
Input Voltage 400 V
Input Frequency 50 Hz
Nominal input current (note 1) 1203 A
Input Current Limitation (note 2) 1466 A
Input Voltage 415 V
Input Frequency 50 Hz
Nominal input current (note 1) 1159 A
Input Current Limitation (note 2) 1447 A
28 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Specifications: Electrical Specifications
DC Input
AC Output
AC Input External Bypass SSW
The External Bypass SSW is rated to a thermal overload of 25%.
Heat dissipation
24.74 kW / 84.4 kBTU/hr (note 6)
DC Input
Nominal Voltage (note 3) 2 x 384 V
INom Discharge (note 4) 1085 A
IMax Discharge (note 5) 1276 A
CAUTION!The minimum DC voltage rating of the battery supply over-current protective device is 500 V.
AC Output
Voltage 380 V
- Current Nom (note 8) 1094 A
- Max (note 7) 1311 A
Voltage 400 V
- Current Nom 1155 A
- Max (note 7) 1444 A
Voltage 415 V
- Current Nom 1113 A
- Max (note 7) 1391 A
AC Input External Bypass SSW
External Bypass SSW Max Input Current (100% load)
380 V 1094 A
400 V 1155 A
415 V 1113 A
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 29
Specifications: Electrical Specifications
Notes
1. Nominal (Nom): Input current based on rated load, nominal input voltage and fully charged batteries.
2. Current limitation is maximum allowed via electronic current limiting and is based on full battery recharge + nominal load and -10% input voltage.
3. Nominal battery voltage assumed to be 2.0 volts/cell (lead technology).
4. Nominal Battery Discharge current based on rated load, and nominal Battery voltage.
5. Maximum Battery Discharge current based on rated load at end of Discharge.
6. Heat dissipation calculated at rated load capacity.
7. This current is at 125% of rated load and is electronically current-limited to a maximum of 10 minutes. This value is only provided so the engineer can ensure that the selected AC output circuit overcurrent device’s time-current characteristic will support this condition.
8. At 380 V, nominal output is reduced from 200 kW to 180 kW in each section.
Torque specifications
Torque specifications
Bolt Size M8 13.5 Nm
Bolt Size M10 30 Nm
Bolt Size M12 50 Nm
Bolt Size M14 75 Nm
30 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Required Breaker Settings (400 V Systems)
The Symmetra® MW is a fault-tolerant system capable of handling and surviving overloads and internal/external faults. The overload performances and fault clearings are possible when the system meets specified minimum requirements for breaker settings. The settings are specified in the tables below, but some of them can also be found in the Electrical Specification section. The settings are all minimum settings and may not result in a drop-out.
Input and upstream breakers — minimum settings
Output and downstream breakers -— minimum settings
Note
Contact APC Application Team for Required Breaker Settings in 380 V and 415 V systems.
See also
See separate guide on parallel operation for information on required breaker settings in parallel systems.
Q1, Q5, and any upstream breaker
Duration [S] Current [A] Total load [%] Event/Operation
< 0.005 22 kA -- Internal fault clearing
600 1466* 127 Overload on-line
1203 100 On-line
1270 110 On-line+ Max. Battery charge
* Only applicable to Q1
∞
∞
Q2, Q4, Q6, and any downstream breaker
Duration [S] Current [A] Total load [%] Event/Operation
< 0.005 22 kA -- Internal fault clearing. Will end as upstream
60 2406* 200 Overload on-line
600 1504* 125 Overload on-line
1155 100 On-line
* Only applciable to Q2 and Q4
∞
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 31
Specifications: Required Breaker Settings (400 V Systems)
22 kA is the maximum peak let-through current (including safety factor) available during clearing of an internal fault in a 200 kW section or a Power Module. During or after a controlled fault clearing, none of the breakers are allowed to trip on the instantaneous trip setting below the specified value. The maximum peak let through current is applicable to utility with prospective short-circuit currents up to 200 kA.
The following diagram shows a dual mains systems in which the upstream breakers are named Q. Correct settings of upstream breaker settings are mandatory. The systems can also be configured as single mains systems.
Note
The instantaneous trip setting must not be derated even though the UPS system is derated in system output power. The system size has no influence on the instantaneous trip setting.
Note
For derated or parallel systems, the APC Application Team provides the correct breaker settings and breaker frame sizes.
Note
For upstream breakers not mentioned in the table, the APC Application Team provides the correct breaker settings for on-line, overload, and trip currents.
Q1 Q2
Q3
Q6Q5
Q4
Q
Q
T1
T2
Dual Mains Single Installation
32 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Appendix
System and Protective Earthing
The purpose of this appendix is to describe the system- and protective earthing principles of the Symmetra® MW.
CAUTION!All wiring to be in accordance with applicable national and/or local electrical wiring rules.
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 33
TN Systems
Characteristics
TN systems have one point connected directly to ground. All exposed conductive parts must be connected to that point by protective conductors.
Depending on the way the neutral and protective conductors are fed, there are three types of TN systems:
• TN-S system: a separate protective conductor is used in the system
• TN-C-S system: the neutral and protective conductors are combined to one single conductor in a part of the system
• TN-C system: the neutral and protective conductors are combined to one single conductor in the whole system
Reference to IEC 60364-4-41 413.1.3
All exposed conductive parts of the installation must be connected to the earthed point of the power system by protective conductors which must be earthed at or near to each relevant transformer or generator.
Exposed conductive parts that are accessible at the same time must be connected to the same earthing system, either individually, in groups or collectively.
Normally the earthed point of the power system is the neutral point. If a neutral point is not available or accessible, a phase conductor must be earthed. The phase conductor must not serve as a PEN conductor.
In fixed installations a single conductor may serve both as a protective conductor and a neutral conductor (PEN conductor).
Reference to IEC 60364-5-54 546.2.3
If from any point in the installation the neutral and protective functions are provided by separate conductors, it is inadmissible to connect these conductors to each other from that point. At the point of separation, separate terminals or bars must be provided for the protective and neutral conductors. The PEN conductor must be connected to the terminal or bar intended for the protective conductor.
If there are other effective earth connections, the protective conductors must be connected to such points when it is possible. It may be necessary to earth at additional points to ensure that the potentials of protective conductors remain as close as possible to that of earth in case of a fault.
34 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Appendix: TN Systems
Additional requirements for generating sets (IEC 60364-5-55 551.4.2)
To be used when the generating set provides a switched alternative to the public supply.
Protection by automatic disconnection of supply must not rely on the connection to the earthed points of the public supply system when the generator is operating as a switched alternative to a TN system. A suitable earth electrode must be provided.
Protective devices in TN systems
The following protective devices are recognized in TN systems:
• Overcurrent protective devices
• Residual current protective devices (not to be used in TN-C systems)
When a residual current protective device is used in a TN-C-S system, a PEN conductor must not be used on the load side. The connection of the protective conductor to the PEN conductor must be made on the source side of the residual current protective device (see below illustration):
L1 L1L1 L1
L1 L1PEN N
SOURCE SOURCE
PE
Res
idu
al C
urr
ent
Sen
se
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 35
Appendix: TN Systems
The characteristics of protective devices and the circuit impedances shall be such that, if a fault of negligible impedance occurs anywhere in the installation between a phase conductor and a protective conductor or exposed conductive part, automatic disconnection of the supply will occur within 5 seconds (valid for distribution circuits), the following condition fulfilling this requirement:
In the condition:
If a fault occurs close to the UPS (before the power distribution) while the UPS system is in Battery Operation and Bypass is unavailable, the available power is unable to activate the protective device. In that situation the Inverter will shut down in five seconds (IEC 60364-4-41 413.1.3.5 norm). If a residual current protective device is used, this device will disconnect the supply.
The four diagrams show the Symmetra MW installed in four different TN systems:
• Earthing arrangements and protective conductors - Symmetra® MW in “TN-S installation”
• Earthing arrangements and protective conductors - Symmetra® MW in “TN-S installation” (Legal in DK - special cases)
• Earthing arrangements and protective conductors - Symmetra® MW in “TN-C-S installation”
• Earthing arrangements and protective conductors - Symmetra® MW in “TN-C installation”
is the impedance of the fault loop comprising the source, the live conductor up to the point of the fault, and the protective conductor between the point of the fault and the source
is the current causing the automatic operation of the disconnecting protective device within a conventional time not exceeding five seconds
is the nominal AC RMS voltage to earth
Zs Ia× U0≤
Zs
Ia
U0
36 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
TT Systems
Characteristics
TT systems have one point connected directly to ground and all exposed conductive parts of the installation must be connected to an earth electrode. This earth electrode is independent of the power system earthed point.
Reference to IEC 60364-4-41 413.1.4
All exposed conductive parts that are protected collectively by the same protective device must be connected to a common earth electrode together with the protective conductors. In installations where several protective devices are utilized in series, the requirement applies separately to all exposed conductive parts protected by each device.
The neutral point or, if a neutral point does not exist, a phase conductor of each generator station or transformer station must be earthed.
Protective devices in TT systems
The following protective devices are recognized in TT systems:
• Overcurrent protective devices
• Residual current protective devices
Overcurrent protective devices are only applicable for protection against indirect contact in TT systems where a low RA value exists (see specification below).
The condition must be fulfilled.
In the condition:
For discrimination purposes, S-type residual current protective devices may be used in series with general type residual current protective devices. To provide discrimination with S-type residual current protective devices, an operating time not exceeding 1 second is permitted in distribution circuits.
is the sum of resistance of the earth electrode and the protective conductor for the exposed conductive parts
is the current causing the automatic operation of the protective device. When the protective device is a residual current protective device, Ia is the rated residual operating current I n
RA Ia× 50V≤
RA
Ia
∆
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 37
Appendix: TT Systems
When the protective device is an overcurrent protective device, it must be either:
• a device with inverse time characteristics and Ia must be the current causing automatic operation within 5 seconds, or
• a device with an instantaneous tripping characteristic and Ia must be the minimum current causing instantaneous tripping
The following diagram shows a Symmetra® MW installed in a TT system:
• Earthing arrangements and protective conductors - Symmetra® MW in “TT installation”
38 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
IT Systems
Characteristics
In IT systems the installation is insulated from earth or connected to earth through a sufficiently high impedance. Exposed conductive parts are earthed individually, in groups, or collectively.
Reference to IEC 60364-4-41 413.1.5
In IT systems the installation must be insulated from earth or connected to earth through a sufficiently high impedance. This connection must be made either at the neutral point of the system or at an artificial neutral point. The latter may be connected directly to earth if the resulting zero-sequence impedance is sufficiently high. In installations where no neutral point exists, a phase conductor can be connected to earth through an impedance. In case of a single fault to an exposed conductive part or to earth, the fault current will be low and disconnection will not be imperative.
Exposed conductive parts must be earthed individually, in groups or collectively and the condition must be fulfilled.
In the condition:
In systems where an IT system is used for continuity of supply, an insulation monitoring device must be provided to indicate the occurrence of a first fault from a live part to the exposed conductive parts or to the earth. It is recommended to eliminate a first fault as soon as possible.
Depending on whether all exposed conductive parts are interconnected by a protective conductor (collectively earthed) or are earthed in groups or individually, after a first fault, the disconnection conditions of the supply for a second fault must be as follows:
a. In installations where the exposed conductive parts are earthed in groups or individually, the protection conditions for TT systems apply (see 413.1.4.1)
b. In installations where the exposed conductive parts interconnected by a protective conductor collectively earthed, the conditions for TN systems apply
In installations where the neutral is not distributed, the following conditions must be fulfilled:
is the resistance of the earth electrode for exposed conductive parts
is the fault current of the first fault of negligible impedance between a phase conductor and an exposed conductive part. The Id value takes the leakage currents and the total earthing impedance of the electrical installation into account
RA Id× 50V≤
RA
Id
Zs3 U0×2 Ia×
--------------------≡
Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 39
Appendix: IT Systems
In installations where the neutral is distributed, the following conditions must be fulfilled:
In the condition:
Protective devices in IT systems
The following protective devices are recognized in IT systems:
• Insulation monitoring devices
• Overcurrent protective devices
• Residual current protective devices
The following diagram shows a Symmetra® MW installed in a IT system:
• Earthing arrangements and protective conductors - Symmetra® MW in “IT installation”
is the nominal AC RMS voltage between phase and neutral
is the impedance of the fault loop comprising the phase conductor and the protective conductor of the circuit
is the impedance of the fault loop comprising the neutral conductor and the protective conductor of the circuit
is the operating current of the protective device. The disconnecting time is 5 seconds (distribution circuits)
Z′sU0
2 Ia×-------------≤
U0
Zs
Z′s
Ia
40 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Residual Current Sense
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
Pro
tect
ive
Ear
thin
g C
ondu
cto
r
Protective Earthing Conductor
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
N PE
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in T
N-S
inst
alla
tio
n
E
Sui
tabl
e ea
rth
elec
trode
with
ref
eren
ce to
IEC
603
64-5
-55
§ 55
1.4.
2
Res
idua
l cur
rent
pro
tect
ive
devi
ceca
n be
use
d.
Residual Current Sense
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an n
ot b
eus
ed a
t thi
s po
int.
Ow
ing
to p
aral
lel r
etur
n pa
th fo
r the
faul
t cur
rent
With
ref
eren
ce to
:IE
C 6
0364
-4-4
1 §
413.
1.3.
1
Min
imum
cro
ss-s
ectio
nal a
reas
:IE
C 3
64-5
-54
§ 54
3.1.
1
+-
+-
Battery 1
Battery 2
Q7
Q8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
See
: IE
C 6
0364
-4-4
1 §
413
.1.3
Residual Current Sense
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
Pro
tect
ive
Ear
thin
g C
ondu
cto
r
Protective Earthing Conductor
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
N PE
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in "
TN
-S in
stal
lati
on
"(
Leg
al in
DK
- s
pec
ial c
ases
)
E
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an b
e us
ed.
Residual Current Sense
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an n
ot b
eus
ed a
t thi
s po
int.
Ow
ing
to p
aral
lel r
etur
n pa
th fo
r the
faul
t cur
rent
With
ref
eren
ce to
:IE
C 6
0364
-4-4
1 §
413.
1.3.
1
Min
imum
cro
ss-s
ectio
nal a
reas
:IE
C 3
64-5
-54
§ 54
3.1.
1
+-
+-
Battery 1
Battery 2Q
7Q
8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
Lega
l in
DK
( S
peci
al c
ases
)
With
ref
eren
ce to
:S
tærk
strø
msb
eken
dtgø
rels
en §
551
.6.3
Not
e(
§ 55
1.6.
3 is
mis
sing
in IE
C 6
0364
-5-5
5 )
See
: IE
C 6
0364
-4-4
1 §
413
.1.4
and
"S
tærk
strø
msb
eken
dtgø
rels
en"
§ 5
51.6
.3, N
ote
Residual Current Sense
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
PE
Protective Earthing Conductor
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
PE
N
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in "
TN
-C-S
inst
alla
tio
n"
E
Sui
tabl
e ea
rth
elec
trode
with
ref
eren
ce to
IEC
603
64-5
-55
§ 55
1.4.
2
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an b
e us
ed.
Residual Current Sense
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an n
ot b
e us
ed.
With
ref
eren
ce to
:IE
C 6
0364
-4-4
1 §
413.
1.3.
1
+-
+-
Battery 1
Battery 2
Q7
Q8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
PE
N
See
: IE
C 6
0364
-4-4
1 §
413
.1.3
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
PE
N
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in T
N-C
inst
alla
tio
n
E
Sui
tabl
e ea
rth
elec
trode
with
ref
eren
ce to
IEC
603
64-5
-55
§ 55
1.4.
2
With
ref
eren
ce to
:IE
C 6
0364
-4-4
1 §
413.
1.3.
1
+-
+-
Battery 1
Battery 2Q
7Q
8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
N
PE
N
PE
NP
EN
PE
N
The
"C
omm
on-M
ode
Filt
er"
has
no e
ffect
in th
issy
stem
con
figur
atio
n.
Thi
s sy
stem
con
figur
atio
n is
not
rec
omm
ende
d
See
: IE
C 6
0364
-4-4
1 §
413
.1.3
Residual Current Sense
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
PE
Protective Earthing Conductor
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
N
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in T
T in
stal
lati
on
E
Sui
tabl
e ea
rth
elec
trod
e:
RA x
I a
< 5
0V
With
ref
eren
ce to
IEC
603
64-4
-41
§ 4
13.1
.4.2
Res
idua
l cur
rent
pro
tect
ive
devi
ceca
n be
use
d.Residual Current Sense
+-
+-
Battery 1
Battery 2
Q7
Q8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
See
: IE
C 6
0364
-4-4
1 §
413
.1.4
With
ref
eren
ce to
IEC
603
64-4
-41
§ 4
13.1
.4.1
Res
idua
l cur
rent
pro
tect
ive
devi
ce c
an n
ot b
eus
ed a
t thi
s po
int.
Ow
ing
to p
aral
lel r
etur
n pa
th fo
r the
faul
t cur
rent
Residual Current Sense
Mai
ns -
inpu
tU
PS
- o
utpu
t
PE
N PE
PE P
E
Byp
ass
- in
pu
tB
ypas
s -
outp
ut
L1 L3L2
L1 L3L2 N
L1 L3L2
L1 L3L2
( A
ltern
ativ
e to
ear
th e
lect
rode
)
Earthing Conductor
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
Ext
ern
al S
SW
-Byp
ass
Sym
met
ra M
W
( P
DU
)S
ervi
ce E
ntr
ance
Mai
nin
vert
er
u
uu
M
Mai
n P
rote
ctiv
e E
arth
ing
Ter
min
al
N
PE
Q1
Q6
Q3
Q5
Ear
thin
g a
rran
gem
ents
an
d p
rote
ctiv
e co
nd
uct
ors
- S
ymm
etra
MW
in
"IT
- in
stal
lati
on
"
E
Res
idua
l cur
rent
pro
tect
ive
devi
ceca
n be
use
d.
+-
+-
Battery 1
Battery 2
Q7
Q8
Bat
tery
1B
atte
ry 2
PE
PEBat
tery
rack
Bat
tery
bre
aker
bo
x
Q4
Del
taIn
vert
er
i
i
i
Common-mode filter
Sw
itch
gea
r
See
: IE
C 6
0364
-4-4
1 §
413
.1.5
Pro
tect
ive
Ear
thin
g C
ondu
cto
r
Insu
latio
nM
onito
ring
Dev
ice
Req
uire
men
t !!
IEC
606
64-4
-41
§ 4
13.1
.5.4
Sui
tabl
e ea
rth
elec
trode
: R
A x
Id
< 5
0VW
ith r
efer
ence
to IE
C 6
0364
-4-4
1 §
413
.1.5
.3A
ltern
ativ
e:T
he e
xpos
ed-c
ondu
ctiv
e-pa
rts
can
be e
arth
ed in
divi
dual
ly o
r in
grou
ps.
Bu
t sp
ecia
l dem
ands
are
req
uire
d. S
ee IE
C 6
0364
-4-4
1 §
413
.1.5
.5 a
)
Z
ZG
roun
ding
impe
danc
e
Gro
undi
ngim
peda
nce
*990-1510B*
APC Worldwide Customer Support
Customer support for this or any other APC product is available at no charge in any of the following ways:• Visit the APC Web site to access documents in the APC Knowledge Base and to submit customer
support requests.– www.apc.com (Corporate Headquarters)
Connect to localized APC Web sites for specific countries, each of which provides customer support information.
– www.apc.com/support/Global support searching APC Knowledge Base and using e-support.
• Contact an APC Customer Support center by telephone or e-mail.– Regional centers:
– Local, country-specific centers: go to www.apc.com/support/contact for contact information.
Contact the APC representative or other distributor from whom you purchased your APC product for information on how to obtain local customer support.
Direct InfraStruXure Customer Support Line (1)(877)537-0607 (toll free)
APC headquarters U.S., Canada (1)(800)800-4272 (toll free)
Latin America (1)(401)789-5735 (USA)
Europe, Middle East, Africa (353)(91)702000 (Ireland)
Japan (0) 35434-2021
Australia, New Zealand, South Pacific area (61) (2) 9955 9366 (Australia)
Entire contents © 2005 American Power Conversion. All rights reserved. Reproduction in whole or in part without permission is prohibited. APC, the APC logo, and Symmetra are trademarks of American Power Conversion Corporation and may be registered in some
jurisdictions. All other trademarks, product names, and corporate names are the property of their respective owners and are used for informational purposes only.
990-1510B 07/2005