Answer / p. sudhagar

Megger is used to checking in insulation value,Its used to
high voltage injunction purpose and checking the polarity.
Contact resistance meter used to checked the contact
resistance value, Its injected the 100A only So its
resistance value low.

Answer / sanjeev

megger is a insulation Resistance checking with applied voltage for checking purpose but contact resistance meter only measuring in oms

why the excitation is necessary to produce the reactive power

2 Answers  

---

what is phase voltage phase current line current and their usage? provide diagram

1 Answers  

---

last 5 year rrb allahabad junior engg electrial engg question paper

0 Answers   RRB,

---

if ELCB and RCCB connected in series,what wiil be the result

2 Answers   BEC,

---

Why AC loads wont used in DC input supply? and Why DC loads wont used in AC input supply?

3 Answers   Bhel,

---

---

name the types of insulatter?

5 Answers  

---

whate is aelectrical power fector for exampal

8 Answers  

---

How do you commission a power Transformer?

1 Answers   EEI,

---

How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

---

Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

0 Answers  

---

What is the difference between phase, neutral wire and earth cable. if neutral is connected to ground, y we need earthing cable? what difference in hot and cold wire? do neutral wire carry current?

1 Answers  

---

what is the effect of power factor in electrical circuit ? if we mainten power factor near about unity (0.999) our energy consumption Units increase or decrease?

11 Answers   Piramal Healthcare,

---