IGCT Relay: Inspection

INSPECT IGCT RELAY
1. Check the resistance.
  1. Using an ohmmeter, measure the resistance between the terminals.

Fig 1: Inspecting IGCT Relay

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Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (when battery voltage is applied between terminals 1 and 2)

If the result is not as specified, replace the relay.