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Question
what is mean by tan-delta tap in the potential transformer??
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Near the HT bushing on the top cover you can find it which
is covered by a plate.This is used for measuring Tan-delta
 
Is This Answer Correct ?    1 Yes 0 No
K.prakashchandra
 
Answer
# 2
I have not heard about tan-delta tap but there is tan delta
testing of PT.It is used to measure the insulation resistance
between phases and between phase and earth and also IR values between in the bushings.
 
Is This Answer Correct ?    0 Yes 2 No
Raghavendran.r
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
How to calculate the Short Circuit Impedance in Transformer?   3
what is the formula for AH?HOW CAN IT CALCULATE   1
What is the type of electrical earthing recommended in hard rock area   2
when voltage gets down the current of motor increases. but according to Ohm's law voltage is directly proportional to current. plz explain Maruti-Suzuki 4
working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?   4
two 100W/230V bulb are connected in series. what would be the voltage drop across 1 bulb   6
we have two 11/.433 kv. distribution Transformer rating as 1000 kva & 500 kva , i wants to run parallel both transformer. both transformer impendence voltage is 5.24%, How can we run both t/f, & how sharing the load   3
what is vibration?   2
what type of motor is used in fan   6
i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?   1
A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?   1
I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA   1
 
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