Answer / anjaney

IT is a method to confirm dielectric condition of medium
voltage cable.
terminal is earthed to determine earth resistance

Answer / raul

tan delta testing is done to measure the dielectric
strength of the insulation.........n to determine whether
the insulation is in healthy condition or not.

Answer / shashank vyas

tan delta testing is done to measure the dielectric
strength of the insulation.........n to determine whether
the insulation is in healthy condition or not.
if the new value matches with old one ,than insulation is in
healthy condition
generally value of tan delta is .007

Answer / ravindrareddy

plat earthing good earthing

ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers  

---

two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?

1 Answers   Bhel, Birla,

---

difference between synchronous reluctance motor and switched reluctance motor

1 Answers  

---

what is magnetizing current test in power transformer

0 Answers   ABB,

---

why DC is not generated instead of AC?

4 Answers  

---

different between grounding & earthing?

23 Answers   L&T,

---

Dear All please ive me ur ideas... What is the major diff between cu conductors and Al conductors ?

3 Answers   MX Technology,

---

What will happen if we give AC supply to DC motor?

4 Answers  

---

How is the connection of the tap changer on the HV side been made?

0 Answers  

---

first 3 men were there .again 3 came.total how much?

11 Answers   Wipro,

---

what must be the mf for a meter with the following conditions. line ct ratio-100/1 line pt ratio- 220kv/110v meter pt ratio- 3X63.5V meter CT ratio- -/1 A

1 Answers  

---

How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

1 Answers   HAL,

---