Answer Posted / mahesh

suppose secondary circit is open the ct is failed.we have to now ct is consist of primary and secondary windigs if secondary is opene large amount of current is flow and damage of ct.

Classify milling machines.

1155

---

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

2123

---

1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?

1904

---

Is it possible to connect a safety device in to parallel?

2165

---

ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

2964

---

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

2042

---

What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

2176

---

Disadventage of cable-gland earthing if any ?

2237

---

What are protections for dty type transformers

1844

---

what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable

1988

---

Write masons gain formula.

1222

---

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

1789

---

I am inpecting a 10kVA UPS what tests should i do and should i observe?

2222

---

what is the sludge current

2140

---

Define the three phase formula fuse.

1887

---