GE Industrial Solutions Galaxy Verification User Manual

Galaxy Power System

Verification Procedures

User’s Guide Select Code 167-792-010 Comcode 108639659 Issue 3 January 2008

Galaxy Power System

Verification Procedures

Notice:

The information, specifications, and procedures in this manual are subject to change without notice. Lineage Power assumes no responsibility for any errors that may appear in this document.

Galaxy Power System Verification Procedures

1 Introduction

2 Galaxy SC Controller Performance

Verification Procedures

Introduction 2 - 1 Tools 2 - 1 Precautions 2 - 1 Illustrations 2 - 2 Lamp Test 2 - 6 Alarm Test 2 - 6

Local Alarm Test 2 - 6 Remote Alarm Test 2 - 8

High Float Voltage Alarm/High Voltage Shutdown Alarm Tests 2 - 9

Overview 2 - 9 Preparations 2 - 9 HV/HVSD Test Procedure for Parallel Rectifiers 2 - 10 HFV Test Procedure for Serial Rectifiers 2 - 11

HVSD Test Procedure for Serial Rectifiers 2 - 12 Battery on Discharge Alarm Test 2 - 16 Rectifier Fail Alarm Test 2 - 17

Lucent Serial Rectifiers 595 and 596 Series 2 - 17

J855- or J874-Series Rectifiers 2 - 17

150A SMR Rectifiers 2 - 18

50A SMR Rectifiers 2 - 19 Terminate Rectifier (TR) Test 2 - 20 Fuse Alarm Test 2 - 21

Major Fuse Alarm 2 - 21

Minor Fuse Alarm 2 - 21 Modem/Data Switch 2 - 22 Remote Peripheral Monitoring 2 - 22 Rectifier Sequencing 2 - 22 Energy Management 2 - 23 Meter Calibration from the Front Panel 2 - 25

Voltage Calibration 2 - 25

Current Calibration 2 - 26 Battery Discharge Test 2 - 27

Issue 3 January 2008 Table of Contents - 1

Galaxy Power System Verification Procedures

3 Galaxy Millennium Controller Performance

Verification Procedures

Introduction 3 - 1 Tools 3 - 1 Precautions 3 - 1 Lamp Test 3 - 2 Alarm Test 3 - 2

Local Alarm Test 3 - 3 Remote Alarm Test 3 - 5

High Float Voltage Alarm Test 3 - 6

Introduction 3 - 6 Preparations 3 - 6 Testing High Float Voltage Alarms 3 - 6

High Voltage Shutdown Test 3 - 7

Overview 3 - 7 Serial Rectifiers 3 - 8

Battery Plant HVSD Test 3 - 9 Battery on Discharge Alarm Test 3 - 12 Rectifier Fail Alarm Test 3 - 12 Terminate Rectifier (TR) Test 3 - 13 Fuse Alarm Test 3 - 14

Introduction 3 - 14

Major Fuse Alarm (FAJ) 3 - 14

Minor Fuse Alarm (FAN) 3 - 14 Modem/Data Switch 3 - 15 Remote Peripheral Monitoring 3 - 15 Rectifier Sequencing 3 - 15 Energy Management 3 - 16 Meter Calibration from the Front Panel 3 - 17

Voltage Calibration 3 - 17

Current Calibration 3 - 18 Battery Discharge Test 3 - 19

Discharge Menu 3 - 20

Procedure 3 - 22

Test Completion 3 - 23

4 Replacement Procedures

Overview 4 - 1 Memory Backup Battery Replacement for SC/SCF Controller 4 - 2

Backup System Configuration 4 - 2

Replace Memory Backup Battery 4 - 3

Restore System Configuration 4 - 4 Memory Backup Battery Replacement for Millennium Controller 4 - 5

Backup System Configuration 4 - 5

2 - Table of Contents Issue 3 January 2008

Galaxy Power System Verification Procedures

Backup System Configuration 4 - 6 Replace Memory Backup Battery 4 - 7 Restore System Configuration 4 - 7

Requirements 4 - 8

System 4 - 8 Batteries 4 - 8 Rectifiers 4 - 8 Rectifier Fan Assembly 4 - 8 Converters 4 - 9

GPS2424 Replacement Procedures 4 - 10

Installing or Replacing a 596B3 Rectifier 4 - 10 Replacing a 596B3 Rectifier Fan Assembly 4 - 12 Replacing a 597A or 597B Converter Carrier 4 - 13 Replacing a 47A Converter Module 4 - 14 Replacing a 128A Converter Interface Card 4 - 14 Replacing a Converter Fan Assembly 4 - 15

GPS4812 Replacement Procedures 4 - 16

Installing or Replacing a 596A Rectifier 4 - 16 Replacing a 596A Rectifier Fan Assembly 4 - 17

GPS4848 Replacement Procedures 4 - 18

Installing or Replacing a 595A or 595B Rectifier 4 - 18 Removing a Rectifier 4 - 21 Replacing a 595A or 595B Rectifier Fan Assembly 4 - 22

Testing 4 - 24

Testing Additional Alarms After Replacing Rectifiers 4 - 24 Testing Rectifiers and Load Share in Bay Expansions 4 - 24

5 Glossary

SC Controller Circuit Boards 5 - 2 SCF Controller Circuit Boards 5 - 4 Millennium Controller Circuit Boards 5 - 8

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Galaxy Power System Verification Procedures

List of Figures

Figure 2-1: Location of Galaxy SC Controller Circuit Boards 2 - 2

Figure 2-2: TB2 and TB3 of Galaxy SC Controller 2 - 3

Figure 2-3: Location of Galaxy SCF Controller Circuit Boards 2 - 4

Figure 2-4: TB2 and TB3 of Galaxy SCF Controller 2 - 5

Figure 3-1: Galaxy Millennium Controller Switch Positions 3 - 2

Figure 4-1: Detail of 596B3 Rectifier Position 4 - 10

Figure 4-2: Detail of Converter Components 4 - 13

Figure 4-3: Cable Connection Between Two Converter

Carriers 4 - 13

Figure 4-4: Detail of 596A Rectifier Position 4 - 16

Figure 4-5: Installing a Rectifier in a Rectifier Shelf 4 - 19

Figure 4-6: Replacing a Rectifier Fan Assembly 4 - 22

Issue 3 January 2008 List of Figures - 1

Galaxy Power System Verification Procedures

1 Introduction

Overview This manual provides general verification procedures for inspection and

testing of Lineage Power Galaxy Power System (GPS) products. The test procedures mentioned in this manual correspond to controller software version 6.5.

The Lucent GPS family of products is designed to operate maintenance-free, without the need for any regular adjustments or fine tuning. The output voltage and current limit are set by the controller, and the information is sent as a broadcast message to all rectifiers. All the rectifier outputs will be automatically adjusted to this level; no individual rectifier level voltage adjustment is required.

If, however, the customer requires any kind of routine verification or inspection (even though Lineage Power does not recommend it), the techniques described in this manual may be used as guidelines to test all the alarms.

The tests described here will simulate various alarm conditions and verify that the controller functions properly.

The fans used in the 595-Series and 596-Series rectifiers have a typical lifetime of 7 years. The fans in the 597A and 597B 24V/48V converter carriers have a typical lifetime of 4 to 5 years. Lucent recommends that these fans be replaced at these intervals as described in Section 4, Replacement Procedures in this manual.

Note: Fan assemblies should be kept dust-free at all times. Air flow through the rectifiers is important for the proper operation of the rectifiers.

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Galaxy Power System Verification Procedures

2 Galaxy SC Controller

Performance Verification Procedures

Introduction The procedures in this section may be used to test the different alarms in

a live Galaxy SC Controller system. The procedures are the same for both rear access and front access Galaxy SC controllers.

Tools The following tools are required to complete the tests described in this

section:

• Digital Voltmeter (DVM) with dc accuracy of at least 0.05%

• Short length of wire or clip lead for jumper

• Jeweler’s screwdriver

Precautions Before performing the test procedures, verify that the following

conditions exist:

• All rectifiers are functioning properly.

• Plant batteries are fully charged and are ready to support a load. (See Caution below.)

Caution: When Alarm Tests are performed on a live plant, some of the tests will cause a battery discharge to occur. In this case, ensure that the plant batteries are capable of supporting the load. It is recommended that a battery discharge test be performed before proceeding with other tests.

Follow the steps of the procedures in the order they are given.

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Galaxy Power System Verification Procedures

Illustrations Refer to Figures 2-1 and 2-2 for illustrations of the Galaxy SC

Controller.

SC Controller

BJJ Intelligent Power Board

BJT Termination Board

Options Slot 5

BJL Modem Board

BJH Intelligent Controller

Options Slot 4

Options Slot 3

Options Slot 2

Local PC Port - RS232

Rear View

Option

Modem

Aux Port

BJF Termination

Fuse Board

BJE Alarm Board

BJA Independent Power Board

BJB Independent Controller

BJC Rectifier Interface Board

Regulation Fuses

TB1

P500

Figure 2-1: Location of Galaxy SC Controller Circuit Boards

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Illustrations, continued

BJT Board

(Galaxy SC Controller)

Figure 2-2: TB2 and TB3 of Galaxy SC Controller

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Galaxy Power System Verification Procedures

Illustrations, continued

SCF Controller Figures 2-3 and 2-4 are illustrations of the Galaxy SCF Controller.

TB10

J5 P401 P403

TB12

TB11

TB6

Options Slot 4

Options Slot 5

TB7

TB8

J111

J112

BLG1

P110

TB5

TB4

P100

Top View

TB2 TB3

BLG Termination Board

Front View (Door Removed)

TB2 TB3

BJF Termination

Fuse Board

P500TB1

BJJ Intelligent Power Board

BJK Data Switch

BJM RPM Board

BJL Modem Board

BJB Basic Controller

BJH Intelligent Controller

BJE Alarm Board

BJA Basic Power Board

BJC Rectifier Interface Board

Figure 2-3: Location of Galaxy SCF Controller Circuit Boards

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Illustrations, continued

TB3

TB2

48 OPT 2

47 ABS4

46 ABS2

45 BTPDB

44 BTPFLT

43 BTP

42 BTN

41 BTJ

40 TEQ

39 TBST

38 LVDR

37 LVD

36 UR2

35 UR1

34 CTLR

33 HV

48 VLV

47 RFA

46 ACF

45 BD

44 MNF

43 MJF

42 ALRMD

41 PMN-E

40 PMN-V

39 PMN-A

38 PMJ-E

37 PMJ-V

36 PMN-A

35 PCR-E

34 PCR-V

33 PCR-A

OPEN

ALARM

32 OPT1

31 ABS3

30 ABS1

29 BTPDG

28 BTI

27 BTPR

26 BTNR

25 BTJR

24 TRTN

23 TFLT

22 AMN

21 AMJ

20 UR2

19 UR1

18 CTLR

17 HV

32 VLV

31 RFA

30 ACF

29 BD

28 MNF

27 MJF

26 SIR(C)

25 PMN-E

24 PMN-V

23 PMN-A

22 PMJ-E

21 PMJ-V

20 PMJ-A

19 PCR-E

18 PCR-V

17 PCR-A

RETURN

16 LVDF

15 ROR

14 RO

13 ETRR

12 ETR

11 T R4

10 TR3

9 TR2

8 TR1

7 OS

6 FAN

5 FAJ

4 UR2

3 UR1

2 CTLR

1 HV

16 VLV

15 RFA

14 ACF

13 BD

12 MNF

11 M JF

10 SI(C)

9 PMN-E

8 PMN-V

7 PMN-A

6 PMJ-E

5 PMJ-V

4 PMJ-A

3 PCR-E

2 PCR-V

1 PCR-A

CLOSED

ALARM

Part of BLG Board

(Galaxy SCF Controller)

Figure 2-4: TB2 and TB3 of Galaxy SCF Controller

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Galaxy Power System Verification Procedures

Lamp Test Depress the <LAMP TEST> key on the controller’s front display

interface. All LEDs on the controller front panel, controller boards, and Lucent serial rectifiers will turn on momentarily and then retire.

Alarm Test

Introduction Alarm Test provides a method of testing the operation of all or any of

the plant alarm relays and their wiring to the connected alarm system. This test cannot be done if any alarms are active. It may also be desirable to perform this test occasionally after the plant is in service to verify the integrity of the office alarms for the power plant.

Alarm Test may be performed locally or from a remote terminal.

The Alarm Test feature will, in succession, operate each of the controller alarm relays. With the basic controller, the default duration is one minute. With the intelligent option for the controller, the selection of the relays to be operated and default duration can be changed using the EasyView interface.

Local Alarm Test Refer to Figures 2-1 and 2-2 for the SC Controller, and to Figures 2-3

and 2-4 for the SCF Controller.

SW202-5 on the BJB Basic Control Board must be enabled along with its associated software switch found on the front panel under the path: MAIN → CONFIG → ALARM → TEST ALM.

If HVSD is desired during the test, BJB SW202-4 must also be enabled, along with the appropriate software switch found on the front panel under the path: MAIN → CONFIG → ALARM → TEST HV. Each rectifier in the plant must have a load of at least 10% of its capacity.

When configured with the optional intelligent controller, the alarm conditions tested during Alarm Test and their duration may be specified within EasyView with the path: MAIN → CONFIGURE → ALARM TEST. As an alternative to the front panel configuration of the Alarm Test software switch, it may be also configured within EasyView under the path: CONFIGURE → DC PLANT → HARDWARE & SOFTWARE CONFIGURED.

Note: Front panel LEDs do not activate during the alarm test. The alarm relays whose contacts are accessed on TB2 and TB3 (BJT board on rear of SC controller/BLG on top section of the SCF controller) may be monitored to follow the progress of alarm testing.

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Alarm Test, continued

Local Alarm Test, continued

The Alarm Test will operate, in sequence, each of the relays shown below for a default interval of approximately 60 seconds. This interval for each relay's activation during this test may optionally be set in an intelligent controller via EasyView path: MAIN → CONFIGURE → ALARM TEST.

Initiate Alarm Test locally by momentarily pressing the Alarm Test switch recessed into the front of the BJB basic controller or press the <MENU> key to bring up the MAIN screen and follow the path: MAINT OPER → ALARM TEST. The ALM TEST STAT field of this same screen can then be used to follow the progress of the Alarm Test.

The progress of the activated relays can be followed during the test by going straight down the TB2 and TB3 terminal blocks if the connected alarm system is not yet processing. (See Figure 2-2 for the SC, Figure 2-4 for the SCF.) The progress of relay activation may also be monitored in the ALM TST STAT field of the MEASURE/STATIS screen of an Intelligent controller or the MAIN screen in the basic controller.

Rectifier Fail Alarm Test - RFAT* Power Critical - PCR Power Major - PMJ Power Minor - PMN Major Fuse - MJF Minor Fuse - MNF Battery on Discharge - BD AC Fail - ACF Rectifier Fail Alarm - RFA Very Low Voltage - VLV/UR3** High Voltage - HV Controller - CTLR User Relay 1 - UR1** User Relay 2 - UR2**

*RFAT is an alarm test intended for use with non-serial type rectifiers that are connected to the “Enhanced Ferro” RIM (J85501F-1 L32) of an SC controller ONLY.

**UR1, UR2, and UR3 are inhibited if LVD Contactors have been configured and a Bay Interface Card is not configured in the system.

Note: If the controller has an earlier version of software (<6.0), VLV is used instead of UR3.

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Galaxy Power System Verification Procedures

Alarm Test, continued

Remote Alarm Test Using EasyView to perform the Alarm Test, hardware switches

SW202-5 on the BJB board and SW204-2 on the BJH board must first be enabled, in addition to the software switches located at menu path.

EasyView: CONFIGURE → DC PLANT → HARDWARE AND SOFTWARE CONFIGURED

Both the Alarm Test and Remote Alarm Test fields must be enabled.

Initiate the test remotely with the EasyView path: CONTROL → ALARM TEST.

Follow the status of the test remotely with the EasyView path: STATUS → ALARM TEST.

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Galaxy Power System Verification Procedures

High Float Voltage Alarm/High Voltage Shutdown Alarm Tes t s

Overview The High Float Voltage Alarm Test differs depending on whether

the system uses parallel or serial rectifiers. Both are described in this section.

The HV test can be done by either raising the plant voltage above the threshold set for HFV (High Float Voltage) and HVSD (High Voltage Shutdown) or by lowering the thresholds for these conditions to make them active.

Note: HFV is an alarm-only that can notify users of an impending HV condition before the need for a shutdown arises.

Preparations Note the value of plant voltage from the Default screen. Use the

following table to record settings before beginning the test procedures for both parallel and serial rectifiers:

Plant Nominal Float

Voltage

HV HFV

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Galaxy Power System Verification Procedures

High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued

HV/HVSD Test Procedure for Parallel Rectifiers

Do not raise the plant bus voltage if an active load is being served. To test HVSD under this situation, ensure that sufficient battery reserve is connected to the plant bus to support the plant load. The battery may start sharing some load and BD alarms may turn on during this test.

Step Action

Disable Load Share on the rectifiers (if equipped) and adjust the rectifier voltages until each is delivering at least 10% of its capacity. Turn Off unneeded rectifiers if necessary to accomplish this.

From the Front Display interface, use the path: MAIN → CONFIG → THRESH and lower the HFV/Float level to 1 volt below the current float voltage. Verify that the Power Minor relay has activated and the RECT and Minor LEDs are active.

Next, use the path: MAIN → CONFIG → THRESH and lower the HV/Float level to 1 volt below the current float voltage. This should activate HVSD, turning Off all plant rectifiers and placing the plant into a BD (Battery on Discharge) condition. The BD, RECT, and Major LEDs should all activate, along with the Power Major, BD, and RFA alarm relays. After 5 seconds, all rectifiers will restart and, following walk-in, will begin raising the plant back to float. When the voltage passes the new HV threshold again, HVSD will occur again and all rectifiers will remain locked Off.

Use the path: MAIN → CONFIG → THRESH one final time to reset the HFV and HV Float levels to their desired normal settings (refer to table where initial settings have been recorded) and then the path: MAIN → RECT RST to restart all plant rectifiers, retiring the BD and RECT alarms.

Repeat the test for any rectifiers that were turned Off to achieve the 10% minimum load capacity level of each rectifier. After all rectifiers have been tested, adjust each to plant float, if necessary, and reenable Load Share on the rectifiers, if equipped.

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High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued)

HFV Test Procedure for Serial Rectifiers

Raising the plant voltage on a working system is left to the discretion of the user. This test could disrupt power to working equipment. If the test is performed, verify that the plant is in FLOAT mode and that rectifier voltage has been set to the normal level after completing the test.

Tests must be done with batteries connected, or else when the rectifiers shut down, the controller will also shut down.

Step Action

From the front panel, follow the path <MENU> → CONFIG

→ THRESH → HFV (FLOAT). Use the <Adjust> keys to

change the value of the HFV threshold to a level below the plant voltage noted above. Press <ENTER> to save the change.

Observe that the controller initiates a Power Minor alarm (PMN) and illuminates the RECT and MIN LEDs.

Follow the path <MENU> → CONFIG → THRESH → HFV (FLOAT) and restore the threshold to it's original setting. Press <ENTER> to save the change.

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Galaxy Power System Verification Procedures

High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued))

HVSD Test Procedure for Serial Rectifiers

There are three requirements for a serial rectifier to shut down upon a controller-initiated High Voltage Alarm:

• The plant voltage must be above the level set for HV at the front panel path: <MENU> → CONFIG → THRESH.

• The rectifier must be delivering a current exceeding 10% of it's capacity.

• The rectifier's current output must be unbalanced by more than 10% from the average output currents of the other rectifiers. Because this is difficult to achieve in a simulation test of properly functioning serial rectifiers, even with load share disabled, rectifiers are tested one at a time rather than as a group. Slightly different test procedures are used for special applications in batteryless plants.

Serial rectifiers have their own internal restart circuits that will function 3 times before the rectifier locks itself out and initiates a High Output Rectifier Fail Alarm to the controller. If there is a sufficient interval between restart and a subsequent shutdown the rectifier resets its restart counter.

The controller initiates a restart signal a few seconds after the first RFA (HO) alarm is received. After the second RFA (HO) is received, the controller waits 5 minutes before sending one additional restart signal.

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High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued)

HVSD Test Procedure for Serial Rectifiers, continued

Step Action

Turn Off all rectifiers except the rectifier under test by operating their power switches to STANDBY. Ensure that the system is loaded to at least 10-90% of the rectifiers’ output capacity.

From the front panel follow the path <MENU> → CONFIG

→ THRESH and note the value of the HV (FLOAT)

threshold.

Press the <ESC> key to return to the Configuration screen.

Follow the path RECT MNGR → [RECT OPER] → PLANT V (FLOAT) from the Configuration screen.

Note: Menu item in [] used in intelligent controllers only.

Use the <ADJUST> keys to change the value of the plant voltage to a level above the HV (FLOAT) setting noted above.

Press <ENTER> to save the change.

Continued on next page.

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Galaxy Power System Verification Procedures

High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued)

HVSD Test Procedure for Serial Rectifiers, continued

Step Action

Observe the following:

• When the voltage increases to the HV (FLOAT) level the rectifier shuts down.

• The Green ON LED on the rectifier blinks, the ALM LED on the rectifier is not lit.

• After 5-6 seconds the rectifier initiates its own restart signal again, raising the plant voltage.

• The rectifier will shutdown and restart three additional times.

• Upon the fourth shutdown, the rectifier's ALM LED lights and the rectifier's display indicates “HO.”

• The controller receives the RFA signal from the rectifier and initiates a restart signal 5-6 seconds later.

• The rectifier restarts again, raising plant voltage.

• The rectifier shuts down and restarts four additional times.

• During these shutdowns the Green ON LED on the rectifier blinks, the ALM LED on the rectifier is not lit.

• Upon the fourth shutdown, the rectifier's ALM LED lights and the rectifier’s display indicates “HO.”

• An external RFA office alarm is generated.

Continued on next page.

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High Float Voltage Alarm/High Voltage Shutdown Alarm Tests, continued)

HVSD Test Procedure for Serial Rectifiers, continued

Step Action

The controller will wait 5-6 minutes and issue one final restart signal, initiating the final sequence of shutdown and restart events before the rectifier locks out, requiring personnel intervention.

Prior to this occurring do the following:

a. From the front panel follow the path <MENU> →

CONFIG → RECT MNGR → [RECT OPER] → PLANT V (FLOAT).

Note: Menu item in [] used in intelligent controllers only.

b. Use the <ADJUST> keys to change the value of the plant

voltage to its normal level. Press <ENTER> to save the change.

c. Press <MENU> and select MAINT OPER → RECT

RESTART. Press <ENTER> to restart the rectifier.

Note: Restarting the rectifier from the front panel in this manner, rather than toggling the rectifier's ON/ STANDBY switch, resets the HVSD timer so that another rectifier can be tested immediately. Testing of the additional rectifiers in the same manner is at the user’s discretion

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Galaxy Power System Verification Procedures

Battery on Discharge Alarm Test

Introduction If the BD alarm was observed during the High Voltage Shutdown test

this test can be disregarded.

If the BD alarm was not observed during the HVSD test, perform the following test procedure:

Procedure

Step Action

From the front panel follow the path <MENU> → CONFIG

→ THRLD and observe the setting of the BD (FLOAT)

threshold.

Switch some of the rectifiers to STANDBY or OFF, until the remaining rectifiers go into a current limit and plant voltage drops below BD (FLOAT) threshold. Observe the active BD and MAJ LEDs and asserted PMJ and BD relays.

Restart the rectifiers to retire alarms and return the plant voltage to float.

Another way to perform the test is to increase the BD threshold above the normal plant float voltage, using the following steps:

Step Action

From the front panel follow the path <MENU> → CONFIG

→ THRLD and observe the setting of the BD (FLOAT)

threshold.

Increase the BD threshold value above the float voltage. Observe the active BD and MAJ LEDs and asserted PMJ and BD relays.

Reset the BD alarm to the original setting.

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Rectifier Fail Alarm Test

Introduction If the RFA alarm was observed during the High Voltage Shutdown Test

no separate test is required.

If the High Voltage Shutdown Test is not performed, generate an RFA (Rectifier Fail Alarm) in each of the plant rectifiers individually, using the procedures below:

Lucent Serial Rectifiers 595 and 596 Series

J855- or J874-Series Rectifiers

For Lucent 595 and 596 Series rectifiers, follow the steps in the table below:

Step Action

Turn the rectifier Off. Wait for the rectifier to power down.

Insert a plastic stick between the front panel grills to block the fan rotation.

Turn the rectifier On. After several seconds, the rectifier will issue an RFA alarm and the plant will generate a PMN.

Remove the fan obstruction and toggle the power switch Off and back On to restart the rectifier and retire the alarm.

Generate an RFA (Rectifier Fail Alarm) in each of the plant rectifiers individually and verify that the RECT and MINOR LEDs become active along with the Power Minor and RFA alarm relays.

For Lineage Power J855-series or J874-series rectifiers an RFA is easily accomplished by operating the “+V” or “-V” fuse alarm circuit by inserting a paper clip into the alarm indicating hole of the fuse holder.

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Galaxy Power System Verification Procedures

Rectifier Fail Alarm Test, continued

150A SMR Rectifiers

For Lineage Power J85702E-series (150A SMR) rectifiers an RFA may be generated by using the following procedure:

Step Action

Set the rectifier to the Single Power Module Assembly (PMA) Fail option by placing BGB SW100-8 to OPEN.

Set the Output CB switch of all three PMAs inside the rectifier to the Off position,

Raise the rectifier voltage (measured via the rectifier voltage test jacks on the front panel of the rectifier) above the Backup HVSD level for the rectifier (set via SW 100-6/7 on the BGB display/control card of the rectifier).

Verify the RFA in the controller.

Lower the rectifier voltage once again to plant float and restart it to retire the RFA.

Close the PMA Output CB switch of all three PMAs and verify normal rectifier operation

Note: Load share should be disabled (BGB SW100-5) anytime rectifier voltage is adjusted in these rectifiers with the PMA Output CBs closed.

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