GE IS200WETCH1APR2 Speedtronic turbine control PCB

Description

GE General Electric Technical Specifications: IS200WETCH1APR2

IS200WETCH1APR2 Neutral Time OC 1 Raised Pickup

Follow the procedure outlined for Phase Time O/C 1 Raised Pickup, injecting current as appropriate.

Ground Time OC Raised Pickup

Follow the procedure outlined for Phase Time O/C 1 Raised Pickup, injecting current as appropriate.

IS200WETCH1APR2 Sensitive Ground Time OC Raised Pickup

Follow the procedure outlined for Phase Time O/C 1 Raised Pickup, injecting current as appropriate.

Neg Seq Time OC Raised Pickup

Follow the procedure outlined for Phase Time O/C 1 Raised Pickup, injecting current as appropriate.

IS200WETCH1APR2 Select Setpoint Group

Apply a manual close and verify that the selected setpoint group becomes active when the breaker closes. Ver

ify that settings return to the previous setpoint group after the MANUAL CLOSE BLOCK TIME expires.

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

TEST WIRING – DELTA CONNECTION on page 17–4.

IS200WETCH1APR2 Procedure To Check:

Function and Timer Control:

1. Enable the Cold Load Pickup setpoint to cause the relay to go into cold load pickup operation after the set

point Outage Time Before Cold Load expires. Check that any selected output relays have operated. If the

function is selected as Alarm, the alarm message and LED should also be turned on.

2. Inject a current in any phase below 10% of nominal, and slowly increase. The relay should go into cold

load operation when the current is above 10% of nominal. The alarm message and LED should reset and

any output relays programmed to operate should dropout after a time interval equal to the cold load pickup

block time. This interval can be checked in the Event Recorder.

3. Reduce this current to 3% of nominal and simultaneously start a timer. This feature should generate an

output at the end of the OUTAGE TIME BEFORE COLD LOAD setting

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