GE Hydran 201i Instruction Manual page 134

Transformer gas monitoring system
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9.2.4.1
Gas High Alarm
1. In the Hydran 201Ti, access the submenu H201Ti Vx.xx;Relays/Analog.
2. Access the submenu Relays/Analog;GasH Relay.
3. Set the parameter RelayMode of the Gas High relay to On.
4. On the H201Ci-1, verify that:
• The door-mounted 1 push-button indicator is lit.
• The Alarm 1 (Gas High) indicator (yellow, DS10; item 15 in Figure 4-7) is lit.
• The Alarm 1 NO contact is closed.
• The Alarm 1 NC contact is open.
• Other LED indicators and contacts have not changed from their previous
state.
• If connected, the supervisory control and data acquisition (SCADA) system has
detected the alarm.
Note: Pushing the 1 push-button to acknowledge the gas alarm condition should not turn
off the indicator since the condition has not cleared.
9.2.4.2
Gas High-High Alarm
1. Access the submenu Relays/Analog;GasHH Relay.
2. Set the parameter RelayMode of the Gas High-High relay to On.
3. On the H201Ci-1, verify that:
• The door-mounted 2 push-button indicator is lit.
• The Alarm 2 (Gas High-High) indicator (yellow, DS9; item 14 in Figure 4-7) is lit.
• The Alarm 2 NO contact is closed.
• The Alarm 2 NC contact is open.
• Other LED indicators and contacts have not changed from their previous
state.
• If connected, the SCADA system has detected the alarm.
Note: Pushing the 2 push-button to acknowledge the gas alarm condition should not turn
off the indicator since the condition has not cleared.
9.2.4.3
System Fault Alarm
1. Access submenu Relays/Analog;SysOK Relay.
2. Set the parameter RelayMode of the System Fault relay to Off.
3. On the H201Ci-1, verify that:
• The display goes blank.
• The two door-mounted push-button indicators (1 and 2) remain lit.
• The System OK indicator (yellow, DS11; item 16 in Figure 4-7) turns off.
• The System OK alarm NO contact is open.
• The System OK alarm NC contact is closed.
Page 134
Hydran* 201i Instruction Manual
MA-033
Rev. 14.0, 12-Nov-18

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