Answer / riaz ahmed khan

OLTC-On Load tap Changer is used in transformers for voltage level step up or step down in load condition.

Answer / murthy ark

OLTC- On Load Tap Changer is used in Power Transformers for voltage level step-up or step-down in Load condition either at Local or at Remote / Auto or Mannual operation

Answer / tarun pradhania

OLTC - open load tap changer
OLTC is used in transformers for voltage level step up or step down.

tell me any book for current n potential trasformer with full knowledge ?

1 Answers  

---

why neutral used in three phase motor connection?

3 Answers   BEL,

---

If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?

1 Answers  

---

what is the cost of a analog tachometer, for lab purpose/

0 Answers  

---

difference btw neutral and ground?

2 Answers   ERG,

---

what percent do you derate your copper wire when you change from copper buss to copper wire

0 Answers   Gerdau,

---

What is over fluxing in transformer?

1 Answers  

---

what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

0 Answers  

---

Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............

9 Answers   NTPC,

---

750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

2 Answers  

---

wats the procedure to calculate no of batteries for ups?

1 Answers  

---

how tubelight circuit is connected and how it works?

7 Answers   Punj Lloyd Ltd,

---