Answer / kamal tiwari

At any opreation time a small current leak means loss
current in capacitor.

Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

0 Answers   Pride Hotels,

---

Atwhat condition reverse power relay will act?

0 Answers   Equate,

---

What is the full name of one of choke less lamp BLL

2 Answers  

---

what is the differnce of STATIC ENERGY METER FROM ordinary energy meter?

1 Answers  

---

what will happen if dc is supplied in acb or mccb or other circuit breakers?

1 Answers  

---

how to remover corona effect and hysteresis losses from contactor

0 Answers  

---

how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

0 Answers   Webel,

---

How to calculate the heat load for a electrical room

0 Answers  

---

HOW DOES THE FAN REGULATOR CONTROLS ITS SPEED

6 Answers  

---

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 Answers  

---

what is split phase ac system?

3 Answers   AMIE,

---

explain safety measures in alternator?

0 Answers  

---