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?
Answers were Sorted based on User's Feedback
Answer / 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|
Answer / msivakailash85
psm based on secondary of the ct
tsm based on what time to trip the breaker during fault
|Is This Answer Correct ?||1 Yes||1 No|
There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in series. Load is taking 15 A current.What will be the back up power for this UPS on same load?
how give earthing to shif and aeroplane which is away from earth?
hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics
Why generating voltage is limited up to 22kV?
What is APFC Panel????
what happen if turbine trip ,g.c.b not open and excitation on condition?
I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting
what is tan delta measurement?..... why that terminal is earthed.....?
neutral earth resistance testing is it possible for transformer while in load condition
How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?
what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...
what is servo motor principle? difference between induction motor & servo motor?