Electrical Q & A - Inst Tools

Thyristor Interview Questions & Answers

What are the different types of Thyristor Protection? For reliable operation of SCR, it should be operated within the specific

Why is alternating current used for transmission? AC is used for transmission because transformers can step it up to high

What are causes of hot bearings? The causes are lack of oil belt too tight armature not centred with respect

Why is transformer flux constant? When a load is connected to a transformer current (say I2) flows through secondary coil

What is derating factor? The factor by which the ratings of component parts are reduced to provide additional safety margins in

Measuring the float voltage of cells is usually easy, but how useful are the results produced by this measurement? In

What for series and shunt compensation provided in EHV transmission lines? Series capacitance is provided in EHV lines to artificially

Air Insulated Substation (AIS) or Outdoor Substations have all switchgear equipment, busbars and other switchyard equipment installed outside open to