Immersed Transformer – Protection Relay

Tests on Site

ERE - Relais de protection DGPT2

Before the Tests :

Turn Off Voltage Transformer

  • Carefully check wiring
  • Check that the power of your servo units are to be able to test your curls up the final element (LED alarm and etc. … for the various actuators for tripping)..

Gassing (DG) :

Element concerned : Magnetic bulb

  • Moving a magnet under the bulb housing, will switch its changeover contact.

Excess tank pressure (P) :

Element concerned : Pressostat

  • Turn the adjuster in the direction of the arrow to bring the set to zero and to switch the changeover contact.
  • After verification of your loop, re-adjust the set to the value indicated on the nameplate

Temperature T1 and T2 (T2) :

Element concerned : Thermostat T1

  • Turn the knob below the graduation 30°C in order to switch the changeover contact.
  • After verification of your loop, re-adjust the set to the value indicated on the nameplate
  • Element concerned : Thermostat T2

  • Turn the knob below the graduation 30°C in order to switch the changeover contact.
  • After verification of your loop, re-adjust the set to the value indicated on the nameplate

 

Gassing (DG) – Excess tank pressure – Temperature T1 and T2 (T2)

ERE - Tests Protections