The diagnosis of electrical equipment concerns all the facilities, from the incoming substation to the loads: networks, transformers, drives, motors and generators, resistances etc…

ts purpose is to carry out a balance of power to detect faults concerning the network or consumers, to capture transient and random faults, to detect control and regulation problems, as well as detecting electro-magnetic faults concerning rotating machines. Trouble spots which are the source of failures or fire will also be detected.

The investigation tools used are varied:

• Simultaneous recording of electric and process signals
• balance of power of the equipment
• identification of torque fluctuations
• vibratory spectrum
• control measurements at a standstill: insulation resistance, IP, profile of the collectors…
• infrared thermography of cabinets and rotating machines

For the turbo-generator sets, a specific vibratory and electrical test programme is recommended to record its electro-mechanical behaviour in all of the speed increase, coupling and load variation stages.

Datasheets

Diagnosis of electrical equipments

Diagnosis by electrical current analysis