PBC 6200 Description
DESCRIPTION
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Copyright
© Ericsson AB 2009–2010. All rights reserved. No part of this document may bereproduced in any form without the written permission of the copyright owner.
Disclaimer
The contents of this document are subject to revision without notice due tocontinued progress in methodology, design and manufacturing. Ericsson shallhave no liability for any error or damage of any kind resulting from the useof this document.
Trademark List
Northstar is a trademark of NorthStar Battery Company
Enersys is a trademark of Enersys Inc
All trademarks mentioned herein are the propertyof their respective owners. These are shown in thedocument Trademark Information.
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Contents
Contents
1 Introduction 1
2 Product Overview 2
2.1 Main Features 2
2.2 Configurations 3
3 Function Description 3
3.1 AC Power 4
3.2 Rectifiers 4
3.3 DC Distribution 5
3.4 Contactors 5
3.5 Control and Supervision Unit 6
3.6 High-Voltage Protection Unit (Optional) 6
3.7 Battery Blocks 6
4 Size and Weight 7
5 Space Requirements 8
6 Environment 9
6.1 Operating Environment 9
6.2 Environmental Factors 10
7 Power 10
8 Interfaces 11
8.1 Signal and Power Interfaces 11
8.2 Operator Interfaces 12
Glossary 14
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PBC 6200 Description
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Introduction
1 Introduction
This document describes the Power and Battery Cabinet (PBC) 6200, whichsupplies power and battery backup to indoor RBSs, transmission equipment,and other DC-operated indoor site equipment. The PBC 6200 consists of twomain parts: a power unit and a battery rack.
The battery rack can be equipped with either AGM or OPzV batteries. Seefigure below.
P020887A
Power unit
Battery string 4
Battery string 3
Battery string 2
Battery string 1
Battery string 1
AGM batteries OPzV batteries
Figure 1 PBC 6200 Overview
There are three types of power units:
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PBC 6200 Description
• Main
• Extension
• PU 200A
The figure below shows an overview of the Power Unit Main.
P020884A
Contactors
Rectifiers
Control andsupervision unit
Circuit breakersAC power connection
High-voltageprotection unit
Figure 2 Power Unit Overview
2 Product Overview
This section describes the main features and configurations of the power units.
2.1 Main Features
The power unit supplies power and battery backup to indoor RBSs and priorityloads such as transmission equipment.
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Function Description
It converts incoming AC power to �48 V DC power and distributes it throughcircuit breakers to batteries and main and priority loads.
The power unit is controlled and supervised by a Control and SupervisionUnit (CSU).
2.2 Configurations
The power units can be installed on top of a battery rack or on a wall. ThePower Unit Main can be expanded with a Power Unit Extension.
The power units can be loaded up to the values given in the table below.
Table 1 Maximum Load
Power Unit Maximum Load
Main 400 A
Main + Extension 800 A
PU 200A 200 A
Each power unit can be connected to up to three battery racks of same batterytype.
3 Function Description
The figure below shows a block diagram of the power unit.
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PBC 6200 Description
P020885A
Power unit
PSUPSU
LVDS 1 LVDS 2(or 3)
Priority
Batteryconnection
AC power connection
Control and supervision unit
Display RS-232 Webboard
Rectifier load
Mainload
ContactorContactor
Hig
h-vo
ltage
prot
ectio
n un
it
Figure 3 Power Unit
The power unit consists of the following:
• AC power
• Rectifiers
• DC distribution
• Contactors
• Control and supervision unit
• High-voltage protection unit (optional)
3.1 AC Power
Incoming AC cables connect to screw terminals, each of which is connectedto a rectifier.
3.2 Rectifiers
A Power Unit can be equipped with up to four or eight rectifiers, which convertsincoming AC power to �48 V DC power. Three types of rectifiers with differentoutput powers are available: 2000 W, 2700 W, and 2700 W High-Efficiency.The rectifier types cannot be mixed in a PBC 6200 system.
The rectifiers are hot swappable, which means they can be replaced withoutinterrupting the operation of the power unit.
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Function Description
3.3 DC Distribution
The DC power from the rectifiers is distributed through circuit breakers topriority load, main load, and batteries.
In the event of AC power failure the batteries supply power to both main andpriority loads.
Circuit Breakers
The power unit has circuit breakers for overcurrent and short circuit protection.
The Power Unit Main and Extension have the following positions for the circuitbreakers:
• 10 positions for main load circuit breakers
• 15 positions for priority load circuit breakers
• 16 positions for up to 4 battery circuit breakers
The PU 200A has the following positions for the circuit breakers:
• 10 positions for main load circuit breakers
• 10 positions for priority load circuit breakers
• 8 positions for up to 4 battery circuit breakers
The following table is an overview of circuit breaker types, their positions andcables.
Table 2 Circuit Breaker Ratings and Occupied Positions
ValueRange
PositionsOccupied
Cable Dimension Battery CableConnection
2–63 A 1 Up to 16 mm2, openend
M6 cable lug
80–125 A 2
150 A 3
200 A 4
Up to 95 mm2, openend, through fork
M8 cable lug
3.4 Contactors
The power unit has two contactors that are used to disconnect the loads fromthe battery power if the battery voltage is too low to protect the battery fromdeep discharge.
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PBC 6200 Description
The priority load can be disconnected by a Low Voltage Disconnect Switch(LVDS) contactor (LVDS 1). The main load can be disconnected by the LVDS 2contactor. In the case of an extension power unit, the main load contactor isdenoted LVDS 3.
3.5 Control and Supervision Unit
The power system is controlled and supervised by a CSU.
In a PBC 6200 system with two power units, only the main power unit hasa CSU.
The CSU is the communication interface between the user and the system andcan be accessed both on-site and remotely.
It has a keypad and display for direct access on-site. It can also be accessedthrough a computer equipped with the power management software suppliedby Ericsson, which can be connected to the RS-232 port on the front panelof the power unit.
Binary Alarms Output
The binary alarms are potential-free relay contacts. The outputs are configuredas described in document PBC 6200 Software Manual. Maximum electricalrating for each output is 150 mA/60 V DC.
Web Board (Optional)
The power unit can be accessed both remotely and on-site through an optionalweb board.
3.6 High-Voltage Protection Unit (Optional)
The optional high-voltage protection unit disconnects the rectifiers from theincoming AC power if the voltage exceeds 300 V AC.
3.7 Battery Blocks
This section gives an overview of the battery blocks in the PBC 6200.
Table 3 Battery Blocks
Type Battery Product Number Battery Capacity
AGM Northstar NSB 100 FT BKC 901 61/1 100 Ah
AGM Northstar NSB 170 FT BKC 901 62/1 170 Ah
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Size and Weight
Type Battery Product Number Battery Capacity
AGM Oerlikon 12CP98C BKC 901 61/2 98 Ah
AGM(1) Northstar NSB 100 Blue BKC 901 06/120 82 Ah
AGM(1) Northstar NSB 170 Blue BKC 901 06/122 140 Ah
AGM(1) Enersys SBS EON 100 BKC 901 06/121 100 Ah
AGM(1) Enersys SBS EON 190 BKC 901 06/123 190 Ah
OPzV OPzV-650 BKC 901 63/1 650 Ah
(1) High-cyclic battery.
4 Size and Weight
The table below shows the size and weight of the PBC 6200.
Table 4 Size and Weight
Cabinet Height Width Depth Weight
41 kg(3)Power unitMain orExtension
390 mm(1)(2) 600 mm 456 mm
61 kg(4)
34 kg(3)PU 200A 346 mm(5) 600 mm 456 mm
45 kg(4)
26 kg(7)Compact 1450 mm(6) 600 mm 410 mm
590 kg(8)
46 kg(7)CapacityAGM
1545 mm(6) 600 mm 600 mm
990 kg(8)
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PBC 6200 Description
Cabinet Height Width Depth Weight
70 kg(7)CapacityOPzV
1450 mm(6) 700 mm 690 mm
1270kg(8)
(1) Excluding battery rack.(2) 340 mm without cable inlet.(3) Excluding rectifiers and circuit breakers.(4) With maximum configuration.(5) 296 mm without cable inlet.(6) Excluding power unit.(7) Excluding batteries.(8) Approximate weight with batteries, max. configuration; exact weight depends on batterysupplier.
5 Space Requirements
The power unit can be installed on top of a battery rack or on a wall.
The figure below shows the space requirements for a power unit.
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Environment
P020886B
0 mm600 mm
0 mm
200 mm
1000 mm
0 mm600 mm
0 mm
200 mm
1000 mm
Figure 4 Space Requirements
For maintenance the recommended space in front of a power unit installedeither on top of a battery rack or on a wall is 1000 mm.
A free space of at least 200 mm is required above the power unit.
6 Environment
This section contains an overview of the operating environment andenvironmental impact of the power unit.
6.1 Operating Environment
The table below shows the environmental requirements for the power unit.
Table 5 Environmental Requirements
Requirement Specification Relative Humidity
Operating temperature +0�C to +50�C 0–95%, non-condensing
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PBC 6200 Description
Requirement Specification Relative Humidity
Non-destructive operatingtemperature
�17�C to +65�C –
Transport temperature �40�C to +70�C 0–95%, non-condensing
Storage temperature �40�C to +70�C 0–95%, non-condensing
6.2 Environmental Factors
This section describes the environmental factors associated with the power unit.
Acoustic Noise
The acoustic noise level of a PBC 6200 system with a power unit equipped witheight rectifiers in an ambient temperature of +25�C is below 65 dB.
7 Power
This section describes the input and output power characteristics of the powerunit.
Input AC Power
The table below shows the input power characteristics of the power unit.
Table 6 Input Power Characteristics
Characteristic Value
Operational input voltage 88–300 V AC
0–300 V AC(1)Non-destructive voltage
0–400 V AC(2)
(1) Excluding high-voltage protection unit (optional).(2) Including high-voltage protection unit (optional).
Recommended fuses:
• 20 A slow type for each 2000 W rectifier
• 25 A slow type for each 2700 W and 2700 W High-Efficiency rectifiers
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Interfaces
Output DC Power
The DC power is distributed to priority and main loads.
The table below shows the output power characteristics of the power unit.
Table 7 Output Power Characteristics
Power Unit Type Characteristic Value
Main, Extension,and PU 200A
Nominal DC voltage output �48 V DC
Main andExtension
Maximum current(1) 400 A
PU 200A Maximum current(1) 200 A
(1) To be divided as desired between main and priority loads.
8 Interfaces
This section describes the interfaces of the power unit.
8.1 Signal and Power Interfaces
The table below shows the external interfaces of the power unit.
Table 8 External Interfaces
Number of InterfacesInterface Type
Main andExtension
PU 200A
AC power input Screw terminals for cables withmax. 4 mm2 cross-sectionalarea, 3 per rectifier.
Strain relief for 14 mm cable orhard conduit 35 or 50 mm.
8 4
Main loaddistribution
Screw terminals for two-wireopen-ended cables(1)
10 10
Priority loaddistribution
Screw terminals for two-wireopen-ended cables(2)
15 10
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PBC 6200 Description
Number of InterfacesInterface Type
Main andExtension
PU 200A
Battery M8 threaded studs for cable lugconnection(3)
4 4
Earth groundterminal
M8 threaded studs, one for thebattery rack, one for the mainearth terminal
2 2
PC 9-pole D-Sub, RS-232 port 1 1
Ethernet(optional)
RJ-45 1 1
Main toExtension
Power cable: M8 threaded studsfor cable lug connection(4)
Data-cable: Dsub connectors(4)
2
2
–
Binary alarmsoutput
Edge connector socket for openend cables with max. 0.5 mm2
cross-sectional area (8×3) (5)
1 1
(1) Maximum 90 mm2 cross-sectional area.(2) Maximum 90 mm2 cross-sectional area.(3) M8 cable lug except for 63 A, which has an M6 cable lug.(4) Cable included in Extension.(5) 30 V DC, 0.3 A; 60 V DC, 0.15 A
8.2 Operator Interfaces
This section describes the operator interfaces of the power unit.
8.2.1 Control and Supervision Unit
The CSU has a display and keypad for quick access to system informationon-site and indicators to show system status.
The table below shows the CSU indicators.
Table 9 CSU Indicators
Indicator Color Status Meaning
MAJ Red On Major alarm
MIN Yellow On Minor alarm
EQL Yellow On Equalizationcharging
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Interfaces
8.2.2 Rectifier
The table below shows the rectifier indicators.
Table 10 Rectifier Indicators
Indicator Color Status Meaning
AC OK Green On Normal operation
RFA/PF Red On Rectifier alarm orpower failure
CL Yellow On Operating atcurrent limit,reduced outputpower
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Glossary
Glossary
CSUControl and Supervision Unit
LVDSLow Voltage Disconnect Switch
PBCPower and Battery Cabinet
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