Answer / raj

no...............

Answer / s.arul

this is my idea.
Bucholtz relay is a gas operated relay.
1. less amount of gas will come, the relay give the alarm
signal. 2. more amount of gas will come, the relay trip the
machine(so don"t use battery in bucholtz relay).

What is the function of pulse transformer?

4 Answers   Electrotherm,

---

why humming sound occured in HT transmission lines.

9 Answers   GE,

---

when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers  

---

why rating of motor in HP ?

2 Answers  

---

What is “pu” in ee?

0 Answers  

---

why frequency should be constant?

2 Answers  

---

What is the difference between ground and neutral ?

2 Answers   TCS,

---

I have calculated load for an office building which is 1200 KW as all the load is single phase therefore its 1200 kw single phase. Now i have to design Transformer and Generator for this load Please kindly give me exact answer that how much capacity of Three Phase Transformer and Three Phase Generator is required for this load.

3 Answers  

---

how to caculate no load loss, load losses & impedance percentage in power or distribution transformers

4 Answers  

---

The potential difference between a phase and neutral is 230v , but the potential difference between two phases is 400v. why?

4 Answers   HCL,

---

what are lightning masts?what is their purpose???

1 Answers   Mecon,

---

Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?

0 Answers   Danieli,

---