Why the earth terminal pin is larger than phase and neutral in three pin plug top>

8 Answers   TVS,

---

From, which load current range ( upper - lower limit current)can Air circuit breaker used for in electrical circuit.

4 Answers   ABC,

---

in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

0 Answers  

---

Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

0 Answers  

---

which of the following can produce maximum induced voltage..... (a)1amp dc current (b)50amp dc current (c) 1amp 60 cycle ac current (d)1amp 490 cycle ac current.

2 Answers  

---

How to calulate Voltage Drop for perticular lentgh of busbar (Cu/ Al)?

1 Answers  

---

what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

0 Answers  

---

3.7 kw motor ,how much sq mm cabel want to bare this motor load

1 Answers  

---

can we apply kirchhoff's laws to circuits containing non linear elements?

3 Answers   Metro,

---

Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

---

why transformer rating is in kva?

11 Answers  

---

how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

0 Answers   OPS,

---