GE IS200WDIIH3ABB MARK VI circuit board

Description

GE General Electric Technical Specifications: IS200WDIIH3ABB

1. Connect the output of a dc ramping-current generator to the analog input.
2. Remove the power supply from the relay to ensure the analog input memory is set to zero, then apply

power to the relay.

3. Set the IS200WDIIH3ABB ramp-rate below the rate-of-change pickup and inject into the analog input. Wait for 90 seconds

(fast rate) or 90 minutes (slow rate) to ensure the relay has properly measured the input ramping-rate. The

relay should not pickup. Cycle the relay power supply Off then On.

4. Adjust the ramp-rate to a higher rate and again apply and; if the relay doesn’t pickup cycle the relay power

IS200WDIIH3ABB supply Off then On. Repeat this procedure until the element generates an output.

Indications and Operations caused by the various Functions are as outlined under Phase Time O/C,

with the following exception:

There is no Trip function for this element.

Timing:

1. Connect the Stop Trigger.
2. Preset the ramp-rate to a minimum of 110% of the pickup. Turn the current off, and reset the timer.
3. Inject the preset current into the analog input and note the measured delay time. Reset the timer.
4. Repeat step 3 four more times and obtain an average of the time intervals.
5. Disconnect the Stop Trigger.

IS200WDIIH3ABB Test Connections per Figure 17–1: RELAY TEST WIRING – WYE CONNECTION or Figure 17–2: RELAY

TEST WIRING – DELTA CONNECTION on page 17–4.

1. Inject voltage at a frequency below the pickup level into phase A.
2. Slowly increase the frequency until the element generates an output.
3. Slowly reduce the frequency until the element resets.

Indications and Operations caused by the various Functions are as outlined under Phase Time O/C,

with the following exception.

There is no Trip function for this element.

Timing:

1. Connect the Stop Trigger.
2. Preset the voltage source frequency to a minimum of 110% of pickup. Turn voltage off and reset the timer.
3. Inject the preset voltage into phase A and note the measured delay time. Reset the timer.
4. Repeat step 3 four more times and obtain an average of the time intervals.
5. Disconnect the “Stop Trigger.”

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