Interested to Buy Any Domain ? << Click Here >> for more details...
how to calculate restraing current and operating current
for differential protection if 20 mva transformer is OLTC
33 kv/11 kv ? and what should be the type and ratio of CT?
- 2 Answers
- 5886 Views
- L&T, OPS, I also Faced
- E-Mail Answers
Answer Posted / nur.asidik
let call Irestrain as Itot, because different relay have different characteristic to define Ires.
for micom P54x, Itot =(|I1|+|I2|)/2,
for sepam T87, Itot =Max(|I1|,|I2|)
where I1=primary current
I2=secondary current,
it need to be consider to calculate transformer ratio factor
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is Harmonics how it is produced and what is the method to control the same
1 hp is equal to how much watt?
What type of wiring series or parallel is used for conventional and addressable type FAS & why?
What is critical disruptive voltage?
for opening electrical shop, tips needed.
What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.
state types of reflectors in illumination engg. ???????
can indirect loading be called as phantom loading?
Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.
What are gain margin and phase margin?
At what speed an electric car can run with 2 HP motor of weighing 400 kg?
Single line diagram for dbb (double bus bar)system.
for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?
I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer
I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?
