Why dc supply is used for closing and tripping coil of ht
breakers. What happen if we use only ups ac supply only.
Answer Posted / ankit
dc supply is used because response time in dc supply is fast as it does not have positive negative sinusoidal wave like ac supply
and in ht we need very fast switching in microseconds
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is the difference between electrical choke and electronic choke?
what will be the min and max voltage flow from neutral to earth?
What is the name of the winding from which the supply is taken for load connections?
Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.
What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
How stabilizer works??
How to calculate Air conditioning capacity for a telecom BTS shelter?
how to calculate the change over time for star delta starter for different KW motor?
1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.
Why saturation region slowly shifted in the left side?
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
What is the use of bundle conductors?
Earth leakage relay basic knowledge principle
in science exhibition how lamp can blink when you clap near the lamp ? thank you
why dc is used in control circuit for mv & hv switchgear instead of ac