GE 70R-1000D manual ATS Testing, Standard Transition, Delayed Transition

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Testing

NOTICE

A periodic test of the transfer switch under load conditions is recommended to insure proper operation.

(See National Electric Code articles 700 and 701)

ATS Testing

Start generator and verify proper voltage, frequency and phase sequence (match to Source 1). Shut down gen set and place in Auto. Complete the visual inspection of the transfer switch, and close the cabinet door.

Initiate the test by pressing the TEST button on the LCD keypad. The controller will then prompt for your access code. After entering the code, three test options will appear— XFR LOAD, FAST TEST and NO XFR (See Figure 10).

•XFR LOAD test starts the generator and using the current timer settings, transfers the load to Source 2.

•FAST TEST test presets timer values to a maximum 30 seconds during the test. After completion of the test, all timers are reset to their original values. (T3, W3, DT and DW remain)

•NO XFR test starts the generator but does not transfer the load to the Source 2.

Press and hold the desired test option button until the switch transfers to Source 2 (load test) or until the generator has been run for the desired amount of time (no load test). Releasing the test button before W timer timeout will abort the test (Exception: when the transfer commit option, is configured “ON”).

To test lamps, press TEST then scroll through MORE, then press LAMP TEST. To cancel LAMP TEST press MORE.

Standard Transition

When the test is initiated, the controller initiates the Time Delay Source 2 Start Timer (Engine Start Timer "P") cycle. A manual CANCEL button is provided to cancel the test if desired. Upon completion of the (P) time delay, an Engine start Signal is sent to Source 2. When Source 2 voltage and frequency reach the preset "Restore" Values, the time delay to Source 2 Timer (W) begins its timing cycle to ensure voltage and frequency stabilization before transfer. A manual pushbutton BYPASS is provided to bypass the "W" time delay if desired. After the (W) time delay, the MX con- troller initiates a transfer signal through the SCR-E to operate the main transfer operator. The load is now transferred to Source 2 line. The transfer switch is mechanically locked. SN limit switch awaits the next operation to Source 1.

Restoration of Source 1 Power:

Deactivating the test switch initiates re-transfer to Source 1 sequence. The delay to Source 1 Timer (T) begins its timing cycle to ensure voltage and frequency stabilization before retransfer. A manual push- button BYPASS is provided to bypass the "T" time delay if desired. After the (T) time delay, the MX controller initiates a transfer signal through the SCR-N to operate the main transfer operator. The load is now transferred to Source 1 line. The transfer switch is mechani- cally locked. SE limit switch awaits the next operation to Source 2.

Immediately after re-transfer, the S2 Stop Delay Timer (Delay

S Y S T E M T E S T

FA S T X F R N O

M O R E T E S T L O A D X F R

Figure 10

to Engine Stop "U") begins its cycle to allow Source 2 Engine to run unloaded. A manual pushbutton BYPASS is provided to bypass the "U" time delay if desired. Upon completion of the

(U) timing cycle, the controller sends an Engine stop signal.

Delayed Transition

Source 1 Power Failure:

When the test is initiated, the controller initiates the Time Delay Source 2 Start (Engine Start Timer "P") cycle. A manual CANCEL button is provided to cancel the test if desired Upon completion of the (P) time delay, an Engine start Signal is sent to Source 2. When Source 2 voltage and frequency reach the preset "Restore" values, the time delay to open Source 1 timer

(W)begins its timing cycle to ensure voltage and frequency sta- bilization before re-transfer. A manual pushbutton BYPASS is provided to bypass the "W" time delay if desired. After the (W) time delay, the MX controller initiates a transfer signal through the SCR-NO to operate the main transfer operator. The load is now transferred to the Open position. The time delay to Source 2 timer (DW) begins its timing cycle. After the (DW) time delay, the MX controller initiates a transfer signal through the SCR-E to operate the main transfer operator. The load is now trans- ferred to Source 2 line. The transfer switch is mechanically locked. SN limit switch awaits the next operation to Source 1.

Restoration of Source 1 Power:

Deactivating the test switch initiates re-transfer to Source 1sequence. The delay to open Source 2 Timer (T) begins its timing cycle to ensure voltage and frequency stabilization before retransfer. A manual pushbutton BYPASS is provided to bypass the "T" time delay if desired. After the (T) time delay, the MX controller initiates a transfer signal through the SCR-EO to operate the main transfer operator. The load is now transferred to the Open position. The time delay to Source 1 timer (DT) begins its timing cycle. After the (DT) time delay, the MX controller initiates a transfer signal through the SCR-N to operate the main transfer operator. The load is now transferred to Source 1 line. The transfer switch is mechanically locked. SE limit switch awaits the next operation to Source 2.

Immediately after re-transfer, the S2 Stop Delay Timer (Delay to Engine Stop "U") begins its cycle to allow Source 2 Engine to run unloaded. A manual pushbutton BYPASS is provided to bypass the "U" time delay if desired. Upon completion of the

(U) timing cycle, the controller sends an Engine stop signal.

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ZTG/ZTGD Operation and Maintenance Manual (70R-1000D)

GE Zenith Controls ■

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Contents GE Zenith Controls Introduction Authorized ServiceTable of Contents Safety / Installation Equipment Inspection and StorageFinal Equipment Inspection MountingEngine Start Control Connections Installation cont’dPower Connections Installation cont’d GE Zenith Controls Initial EnergizationInitial Energization cont’d R E T E S TMX150 Microprocessor Controller MX150 ControllerMX150 Microprocessor Controller cont’d LCD & KeypadUser Setting for Voltage & Frequency Standard Features, Mstdg Option PkgSource CalibrateS13 Std. Features, Mstdg Option Pkg. cont’dR50 Standard Features, Mexeg Option Pkg CDP replaces CDTOptional Accessories How to Set the System Clock CDT One Event Timer ExerciserCDT One Event Timer Exerciser cont’d How to Bypass Cancel an exercise during an exercise cycleCDP Clock Exerciser Load / No-Load Clock ExerciserMX150 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuMX150 User Setup SET Menu Change adjustable values through the SET menuMX150 User Setup System Info View System DataTesting ATS TestingDelayed Transition Standard TransitionTimer Designations as they appear in the SET menu Sequence of OperationControls Power Supply CPS Standard and Delay TransitionDelayed Transition CPS Schematic Controls Power Supply CPS cont’dStandard Transition CPS Schematic Troubleshooting and Diagnostics General TroubleshootingMaintenance and Testing Inspection and CleaningTesting ServicingPower Panel and Replacement Parts Standard Transition 40 to 260 Amps Solenoid TypePower Panel and Replacement Parts cont’d Standard Transition 400 to 600 Amps Molded TypeStandard Transition 800 to 1200 Amps ARC Grid Removed for ClarityStandard Transition 1600 to 3000 Amps Stationary Contact Moveable ContactDelayed Transition 40 to 600 Amps AmpsDelayed Transition 800 to 1200 Amps SCR-EO Movable Contact Stationary ContactDelayed Transition 1600 to 3000 Amps Movable E3 Contact StationaryPage Page Page GE Zenith Controls
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