what r the sizes of CB's? how to select CB's?

1 Answers  

---

why do we use UPF watt meter in short circuit test of the transformer and LPF watt meter in open circuit test of the transformer

2 Answers   Bell, TCS,

---

Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

4 Answers   National Steel,

---

A genarator is connected through a 20MVA ,13.8/138 KV stepdown transformer to a transmission line. at the reciving end of the line a load is supplied through a step down transformer of 10MVA,138/69 KV rating .A 0.72 PU load evaluated on load side transformer ratings as base values ,is supplied from the above system for system base values of 10 MVA and 69 KV in load circuit the value of the load in generator circuit will be ...........

1 Answers  

---

keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

4 Answers   Ecil, Siemens,

---

what is the basic difference between fan and home motor if both have single phase induction motor?

4 Answers   Engineers India Limited,

---

what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

0 Answers   Jindal, Power Grid,

---

why the amount of voltage generated at power generating stations is 11 KV only....?

3 Answers  

---

how to select a breaker (MCB,MCCB,ELCB) for 18.5 kw, 3 ph. 480 v, 60 hz induction motor?

4 Answers  

---

why transformer rating in KVA ?

8 Answers   Bhel, TATA, Voltage,

---

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

0 Answers   PPIL,

---

What is mean CT Saturation? How to calculate?

13 Answers   NCC,

---