Answer / k.prakashchandra

Generally V =voltage ,D = disc type ,G =IDMT ,T= trip
circuit ,C= current.Hence VDG may be under/over voltage disc
operated IDMTL relay.CDG similarly current relay.VTT could
be voltage operated trip circuit supervision relay.

what is different between grounding and earthings?

4 Answers  

---

why in generating station generation voltage is 11 kv

1 Answers   L&T, Usha Martin,

---

what is the difference between home inverter and online ups?

2 Answers   ME,

---

how does damper winding produces torque in synchronous motor?

1 Answers  

---

What it indicates by 25/41MVA on transformer?

4 Answers  

---

Can I use measuring current transformers in protection purposes?

7 Answers  

---

why transformer rating comes in kva?

4 Answers   HNG, Tech Mahindra,

---

what is the formula for computing cable tray size & capacity

0 Answers  

---

What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

9 Answers   Bhel, Dubai Group,

---

How can we get electric power from lighting ?

3 Answers   TATA,

---

how to get 48 V DC I have ... 1. 12 volt power supply board 2. DC power supply ( max. 30 v) 3. 9 volt batteries ( 2 - not chargeble)

2 Answers  

---

what is the constructional difference in generator if we want to genearate 6.6kv instead of 440v?

1 Answers   Anglo Eastern,

---