Answer Posted / prabas

transformer rating only in KVA because copper losses depends
upon current(I^2R) and iron losses depends upon voltage.
iron losses are 2 types 1)eddy current losses 2)hysterises
losses so total losses depends upon I,V not on phase angle
between i and v.so t/f rating always in KVA not in KW.

HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2586

---

please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

1835

---

What is the fault or needs to be done when frequency in ac drives is not changing?

1662

---

I have experienced electrical maintenance HT ,but I completed be ECE ....can I apply c license or not ???? Pls help me friend s...

1576

---

Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??

2409

---

what are the principles of a booster converter?

2069

---

We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

2169

---

what is differant beetween overload current and phase current?

2345

---

Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.

982

---

what is the efficiency of thyristor

1648

---

State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

2089

---

what maximum range of star & delta in hp or kw ?

1706

---

xfhnchncv?

1917

---

Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

2089

---

what is magnetizing current test in power transformer

2751

---