GE IS200VVIBH1BBA MARK VI circuit board

Description

GE General Electric Technical Specifications: IS200VVIBH1BBA

IS200VVIBH1BBA Indications and Operations are as outlined under Phase Time Overcurrent 1.

Blocking From Logic Inputs:

1. Inject voltage and current above minimum at a frequency to cause a pickup.
2. Assert a logic input to provide a “Block Underfreq 1 (2)”. The PICKUP indicator should immediately go out.
3. Repeat steps 1 and 2 for logic input “Block 1 TRIP Relay” as required.

IS200VVIBH1BBA Timing:

1. Connect the “Stop Trigger.”
2. Set the voltage source prefault mode to nominal voltage, current and frequency.
3. Set the voltage source fault mode to nominal voltage and current, but with a frequency below pickup.
4. Set the source to prefault mode, reset the timer, and apply to the relay.
5. Jump the source to fault mode and measure the operating time.
6. Repeat steps 4 and 5 four more times and obtain an average of the time intervals.
7. Reset the relay and disconnect the “Stop Trigger.”

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

TEST WIRING – DELTA CONNECTION on page 17–4.

Procedure To Check:

IS200VVIBH1BBA Minimum Operating Voltage Supervision:

1. Inject voltage into the Va bus voltage input at a level well below the Minimum Operating Voltage level. Also

inject Ia = Ib = Ic at a level well above the Minimum Operating Current level. Starting with the Va frequency

at a level well below the Frequency Decay Pickup, drop the frequency of Va at a speed greater than the

IS200VVIBH1BBA FREQUENCY DECAY RATE setting. The pickup indicator should remain off.

2. Inject voltage into the Va bus voltage input at a level well above the Minimum Operating Voltage level. Also

inject Ia = Ib = Ic at a level well above the Minimum Operating Current level. Starting with the Va frequency

at a level well below the Frequency Decay Pickup, drop the frequency of Va at a speed greater than the

IS200VVIBH1BBA FREQUENCY DECAY RATE setting. The pickup indicator should come on while the Va frequency is dropping.

Minimum Operating Current Supervision:

1. Inject voltage into the Va bus voltage input at a level well above the Minimum Operating Voltage level. Also

inject Ia = Ib = Ic at a level well below the Minimum Operating Current level. Starting with the Va frequency

at a level well below the Frequency Decay Pickup, drop the frequency of Va at a speed greater than the

FREQUENCY DECAY RATE setting. The pickup indicator should remain off.

2. With the Va voltage at a level well above the Minimum Operating Voltage level, increase Ia to a level well

above the Minimum Operating Current level. Currents Ib and Ic should be well below the Minimum Operat

ing Current level. Starting with the Va frequency at a level well below the Frequency Decay Pickup, drop

the frequency of Va at a speed greater than the FREQUENCY DECAY RATE setting. The pickup indicator

should come on while the Va frequency is dropping.

3. With the Va voltage at a level well above the Minimum Operating Voltage level, increase Ib to a level well

above the Minimum Operating Current level. Currents Ia and Ic should be well below the Minimum Operat

ing Current level. Starting with the Va frequency at a level well below the Frequency Decay Pickup, drop

the frequency of Va at a speed greater than the FREQUENCY DECAY RATE setting. The pickup indicator

should come on while the Va frequency is dropping.

4. With the Va voltage at a level well above the Minimum Operating Voltage level, increase Ic to a level well

above the Minimum Operating Current level. Currents Ia and Ib should be well below the Minimum Operat

ing Current level. Starting with the Va frequency at a level well below the Frequency Decay Pickup, drop

the frequency of Va at a speed greater than the FREQUENCY DECAY RATE setting. The pickup indicator

should come on while the Va frequency is dropping.

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