On wat basis TSM & PSM are set? Example.TSM=30% n
PSM=2.5A....Hw they are set and how we come to know that
the particular relay should be set to this value only?
- 2 Answers
- 5505 Views
- I also Faced
- E-Mail Answers
Answer Posted / winston radebe
TSM is time setting multiply hence psm is plug setting
multiply,they are set according to standard inverse
characteristic curves to set psm we need to calculate the
effective setting also we need to consider fault current
and psm is value with no amperes, the large the psm the
faster the relay will respond.e.g to obtain tripping time
of 2seconds,we would set tsm to 0.2seconds
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is the difference between Generator Differential Relay and Transformer Differential Relay?
what is the current setting for different relay protection for transformer .
How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend
Define ampere
What is meant by rotor?
I am completed DEEE in tamilnadu, now i am working in andhrapradesh with 2.5 year experience in relavent field. capacity of the tranformer is 11KV, 1MVA Transformer, i am eligible for getting c licence in andhrapradesh pl help me.
how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar
condition Autotrip facia come on control panel of electrical transmission line?
what is draiv work
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?
ht side line to earth voltage
How can we design a HVAC Plant room which includes AHU,FCU,Chillers,Cooling towers, Pumps etc & how will they work? any Drawing if possible?
what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/
wat is d diffr btw shunt coil and trip coil in VCB?
