Answer / manoj

The HT panel is the front side (usually) of HT cubicle. If
it is a local control panel there will be one alarm
annunciator ,meters for the indication of different
parameters of electricity ,normal control push
buttons,emergency control push buttons,bypass key for all
interlocks,"local,remote or maintenance" selector rotary
switch,semaphore indicators for CB/isolator/earthing
switch,push button for healthy checks of tripping coils
(before closing and after closing).There wiil be no
hazardous HT voltages as the name indicates,only control
power(110 dc,110 ac,240v ac,440v ac).Inside the cubicle
there will be ,space heater,resistances,fuses,SMPS power
supplies auxiliary relays(protection panel) etc.

Answer / karthick

primary and secondary winding

How can we have to decided motor connection as a STAR-DELTA or DELTA-STAR?

3 Answers   IOCL, Jindal,

---

What shall be minimum thickness of firewall in between two transformers and which code specifies it ?

1 Answers  

---

Why we use mho Relay in long transmission line?

0 Answers  

---

What will be the output of t/f supplied with DC sourse?

2 Answers  

---

1.why we are using blocks in withoutgaplightning arrester 2.why we ar using bushing in withoutgap lightning arrestor

0 Answers  

---

What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?

0 Answers  

---

what is current check gurd relay?

0 Answers   MRF,

---

why star 2 delta or delta to star preferred mostly then star to star and delta to delta ?

1 Answers  

---

What value of resistance required between Saftey earth and instrunment earth , maximum and minimum values required

1 Answers  

---

Whats the diference between Induction motor and servo motor

3 Answers   Essar, PMT Machines,

---

What is core balancing in Power Transformer. What is the affect of an unbalabce core.

1 Answers  

---

Can I use 1 phase power supply to run 3 phase motor? If yes, how?

6 Answers   Enercon,

---