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Define phase lag and phase lead?
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
can anyone provide me a amf panel control wiring using ec-2 relay?
We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
What are the advantages and disadvantages of open loop control system?
What is earth?
what material is used in capaciter
When are the directional relays used?
we have 15 ampere variyac but we want 30 ampere variyac what we do
What is excitation in case of dc motor?
5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch
what is earth pit , how we can measured it, what earth rods reference
What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?
What are electric motors?
What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?