Building Site Transformer Substations
The accidental arcing test
Every test procedure requires
a new 20 kV - SF6 system.
Comes factory-fit with short circuit
to induce internal arc.
Testing of prefabricated
building-site transformer
substations by IPH Berlin.
The indicators are installed.
The test is carried out
once with doors closed
and again with the
medium-voltage door open
Medium-voltage compartment
after the test with the open door.
All indicators are undamaged.
After the closed-door test.
The indicators show no trace of fire.
The indicators are made of a fine material that should not ignite under any circumstances.
Pressure sensors provide information about pressure fluctuations inside the substation.
