Answer / rvg

Operation theatre using life saving equipments,and even if
there is small leakage, the circuit will trips off and if
it happends during a major operation, it should not be happen.

Answer / bernard zakaria

Why elcb can not work in Telecom DC power plants(-48VDC)?

Answer / abhilash

Operation theatre using life saving equipments,and even if
there is small leakage, the circuit will trips off and if
it happends during a major operation, it should not be
happen.

Answer / pravesh

as we knoe that elcb is earth leakage ckt breaker. it workd
on milli amp. of current in theaters if we use elcb there
may be chances of eath leakge current or may be a current
may flow through the neutral which may cause tripping and
equipment shutdown causing hinderance, so the elcb are not
used in theaters

generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 Answers  

---

why synchronous motor is not self starting

5 Answers   Cenored,

---

Why Power factor is different - different in all three phase of a 3 phase nduction motor.

2 Answers  

---

how can H.V busbar in a powerstation can be protected?

1 Answers   Unitech,

---

How to calculate unit consumption on the basis of load. kWH=kwXhrs.is it correct? kw is motor load.What is unit consumption at 100% load, 50% load & on no load.

6 Answers   GIL,

---

Is there any capacitor in 3-phase IM?why,xplain.

2 Answers  

---

How the soft starter control the starting current in three phase squirrel cage AC Motor?

1 Answers  

---

What is the safety protection? Name the protections of Transformer?

1 Answers   HSL,

---

How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

0 Answers  

---

what are iron and copper losses

4 Answers  

---

what is difference between armoured cable and un armoured cable

2 Answers  

---

What will be the excat cable specification in Sq MM...please find the details below.... Induction Motor HP:55 Amps:70(starting Amps),45(Running Amps). Volts:415

1 Answers  

---