GE IS200VVIBH1C IS200VVIBH1CAA VME VIBRATION MARK VI electrical board

Description

GE General Electric Technical Specifications: IS200VVIBH1C

IS200VVIBH1C Indications and Operations are as outlined under Phase Time Overcurrent 1.

Blocking From Logic Inputs:

1. Decrease the Va frequency at a rate to cause a pickup.
2. Assert a logic input to provide a “Block Frequency Decay”. The PICKUP indicator should immediately go

out.

3. Repeat steps 1 and 2 for logic input “Block 1 TRIP Relay” as required.

IS200VVIBH1C Timing:

1. Connect the Stop Trigger.
2. Preset the ramp-rate to a minimum of 110% of the pickup and reset the timer.
3. Inject the preset voltage into the Va bus voltage 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.

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

IS200VVIBH1C TEST WIRING – DELTA CONNECTION on page 17–4.

1. Ensure the wiring to the circuit breaker trip and close circuits is complete.
2. Energize the breaker trip and close circuits and close the breaker.
3. Carefully disconnect a wire to open the trip circuit.
4. Set a test current level 3% above the Breaker Failure Current setpoint and inject current into a phase cur

rent input. (All O/C protection features are Disabled.)

5. Assert a Trip logic input, which cannot be performed by the breaker. After a delay the element should gen

erate an output. (The delay time can be checked in the Event Recorder.) Turn the current off and Reset the

relay.

6. Reduce the current magnitude to 3% below the Breaker Failure Current setpoint and inject current into a

phase current input. Assert a Trip logic input, which cannot be performed by the breaker. The element

should not generate an output.

Indications and Operations are as outlined under Phase Time Overcurrent 1. This element has no Trip

function.

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