when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
how to decide the capacity of accl
What is Scheme Test of High Voltage Switchgear. Which tests it includes.
how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???
Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?
What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?
what is negative and zero impedance in 3 phase induction motor ??
Why the magneti fields are not passes from southpole to north pole
formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?
how much leakage current is allowed in MC61A L&T make relay?
draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.
which protection function should measure RMS value of current&DFT value of current?
what are the analog quality input for protection function?what are minimum reqiments?
what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?
What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.