Answer Posted / arjun karnti

isolator is a off load device which is used for isolating
the downstream circuits from upstream circuits for the
reason of any maintanance on downstream circuits. it is
manually operated and does not contain any solenoid unlike
circuit breaker. it should not be operated while it is
having load. first the load on it must be made zero and
then it can safely operated. its specification only rated
current is given.

but circuit breaker is onload automatic device used for
breaking the circuit incase of abnormal conditions like
shortcircuit, overload etc., it is having three
specification 1 is rated current and 2 is short circuit
breaking capacity and 3 is instantaneous tripping current.

explain the Trip supervision circuit

2201

---

how we can calculate 2 phase welding transformer rating or total power?

1931

---

how to calculate the battery AH

2813

---

where we use the SFU & FSU?

2466

---

how to introduce yourself

2080

---

Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

2367

---

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1888

---

Differentiate between kirchhoff’s first law and kirchhoff’s second law?

1118

---

power transmission pole used one support , that only for support or earthing

2006

---

Difference between ac parallel circuit and ac series circuit?

2187

---

Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

2259

---

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

2012

---

1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

2046

---

What is corkscrew rule?

1203

---

what is mean by parallel operation of permanent magnet generators

2041

---