Interested to Buy Any Domain ? << Click Here >> for more details...
what type of relays used in transformers?
- 24 Answers
- 66081 Views
- APTransco, BSNL, I also Faced
- E-Mail Answers
Answer Posted / vishal
BUCKHOLTZ RELAYS(OIL COOLED T/F)---->INCIPIENT INTERNAL
FAULTS
PERCENTAGE DIFF PROTECTION----->FOR SHORT CIRCUITS(FOR
>1MVA T/F)
OVER CURRENT RELAY------------->SHORT CKT(FOR LOW RATING)
HAMONIC RESTRINT DIFF RELAY----->FOR PROT AGAINST MAL OPN
OF T/F
| Is This Answer Correct ? | 24 Yes | 3 No |
Post New Answer View All Answers
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
What is different between resistance grounding system and resistance earthing system?
Why is back emf used for a DC motor? Highlight its significance.
I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??
what is KA rating and how can we choose switchgears on applications
how to select energy meter? have any calculation?
Enlist four components of electrive drives.
how to calculate magnetic force genrated by a coil ?
Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?
what is DRP panels?
What is resistance reading of earth copper rod with grid and without grid?
how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours
how we calculate the short circuit capacity of the busbar in LV & HT?
Determine a suitable number of slors and conductors per slot for the starter 1 winding of a 3 phase, 3300 V. SO Hz 300 rpm alternator. The diameter is 2.3 m
what is the safety points of vaccum circuit breaker.
