Answer / raghavendran

power frequency withstand capability of a CB is its
capability to with any over voltage at system frequency for
a definite period of time say 1min.

Impulse frequency withstanding capability is to withstand
the impulsive voltage levels for a predefined period of
time.say 1.2(rise time)/50 microsec(fall time),100KV
say(impulse voltage level)

Answer / ibrahim

the root mean square (r.m.s.) value of sinusoidal power
frequency voltage that the cb can withstand during tests
made under specified conditions and for a specified time

what is the function of gss in the dg set.

0 Answers   Cushman Wakefield,

---

quantizer means?

0 Answers  

---

Pls mail me utility & Dg related question with answer

0 Answers  

---

Megger type of instrument is used to check??

8 Answers  

---

when we increased the current what do ?

0 Answers  

---

In tranformer winding Connection Like Dyn1 ,so LV lags Hv by 30 deg and Dyn11 LV lead HV by 30,so how do this lagging and leading afffect the transformer??

2 Answers   Siemens,

---

what is hormonics. how it is generated & what are the problem faced by that.

5 Answers   APC,

---

What is the difference between tie bus and bus coupler?

1 Answers  

---

For 280kw power. Which cable I can usr

3 Answers   Clean World, TCS,

---

where does core based current transformer is used? and what is the value of lux in a work station?

1 Answers   Space Matrix,

---

can any one explain me the where is the use of plc and scada

4 Answers  

---

what is meant by leading or lagging power factor?like in capacitor power factor is leading and in inductor power factor is lagging

4 Answers  

---