SERGI - Existing Transformers

TRANSFORMER PROTECTOR


	For Existing Transformers [10]

Required interfaces on the transformer tank
As it requires very few interfaces, the TRANSFORMER PROTECTOR can be easily adapted to any existing or new transformers

Documents [10] details every possible configuration for adaptation on transformers already in service.

SERGI always uses existing transformer interfaces in order to avoid tank drilling and machining.



Oil sampling or filtering valves at the bottom of the tank are adapted to inject nitrogen inside the transformer through suitable T-pieces.

		If existing transformer tanks are not equipped with a flange or a manhole on the side of the transformer, the Depressurisation Set is adapted to the Pressure Relief Valve flange with a T-piece.






	In that case, the Vertical Decompression Chamber is slightly different as it contains 2 pipes: for the explosive gases (E) and for the oil (D).

	A - Isolation Valve B - Absorber C - Rupture Disk D - Oil Evacuation Pipe E - Gas Evacuation Pipe F - Vertical Decompression Chamber

Installation [11]

The Control Box is mounted in the plant control room. A wall is required to mount the Cabinet, close to the transformer. Please refer to chapter 6 and 7 for further details.

A week is necessary for an electrician and a welder to install the TRANSFORMER PROTECTOR. The transformer must be made available for one day for mechanical and electrical connections, testing and commissioning.


	The TRANSFORMER PROTECTOR can protect transformers located in a compact environment