what is mean by tan-delta tap in the potential transformer??

2 Answers  

---

What are difference between earthing switch and earthing truck ? What is the operation philoshopy of earthing truck ? Wht are the component of earthing truck ?

2 Answers   Reliance,

---

how much kn lightning arrestor is used in 11kv line

8 Answers   Power Grid,

---

i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

0 Answers  

---

list down a few application of ac & dc in a generating station?

1 Answers  

---

how will be power factor while using the resistive load and Capacitive load?

3 Answers  

---

I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.

2 Answers  

---

which type sylbuse involved

1 Answers   BMRCL,

---

I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

4 Answers   ABB,

---

any idea abt REVERSE METERING concept.........?

0 Answers  

---

IN a transformer during power supply how the LV and HV bushing works??

3 Answers   CSEB,

---

What is NUMBER OF RUN for power cable means?

4 Answers  

---