Interested to Buy Any Domain ? << Click Here >> for more details...
What are the different protection systems used to protect
the transformer internally and externally?
- 16 Answers
- 61884 Views
- I also Faced
- E-Mail Answers
Answer Posted / rajendran.m
a.Buzhalls type
b.Breather type.
| Is This Answer Correct ? | 21 Yes | 13 No |
Post New Answer View All Answers
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current
Post possible questions for Power Factor Panel FAT / SAT
how did the testing of protection relays done through current injection
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.
what is the differencce inn series and cascade connection??
How many sprinklers should be in one pipe line?
what are the preventive maintanance actions taken for air circuit breaker? please answer me
What is mean by hot and cold loop testing?
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???
ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????
What is the Resposiblity of Electrical Utility Engineer
what is the difference between linear choke and suction choke?
