Answer / karna

In LT Panel HV test we are conducting for checking the
insulation level of Busbars or components, and verifying
the Clearnace of Phase to phase or phase to Body.In fault
conditon Panel components are withstanding or not. HV test
applying voltage is 2.5KV for One Minute

1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

0 Answers  

---

how to calculate the speed of a induction motor without using tacho meter?

6 Answers  

---

if there is a voltage difference between neutral and earth when we operate any instrument for fraction of time then where is problem?

1 Answers  

---

There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

0 Answers  

---

What test must you do before powering up a circuit that you have been working on?

0 Answers  

---

how it can be decided what will be the rating of CT and PT to be used in LT or HT cables?

3 Answers  

---

What range of speed can you get with the armature control method of speed control of d.c. Shunt motor?

0 Answers  

---

Fire pumps are not used with ELCB control, why ?

4 Answers  

---

how to calculate kA rating of device?

3 Answers   Siemens, Vijai Electricals,

---

why fuse amperes rating are specified ratings like 32amp & 64 amps?

2 Answers  

---

Can be ammeter and voltmeter used without CT? if not, what is the reason for that?

3 Answers   Elektrotek, Toyo Engineering,

---

If we connect a motor and generator together (I mean that the generator gives the motor electricity and the motor gives the generator movement) regardless the losses. Will the generator still generate and the motor still move?

0 Answers   Cap Gemini,

---