PBC6200 Description

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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