what is a diffrence between MCCB, RCCB, MCB, & ELCB ?
what is rated current e.g. on motor name plate indicated
that is rated curent?
what is full load current?
If we run D.C. motor with mechanical coupling and we measure
voltage on terminal it shows voltage or not ? same in AC
also possible ?
- 5 Answers
- 13773 Views
- Reliance, I also Faced
- E-Mail Answers
Answer Posted / d b patel
MCCB IS A PROTECTING DEVICE THAT PROTECTS CIRCUIT FROM OVER
LOAD AND SHORT CIRCUIT IT COMES WITH CURRENT SETTING THE
SAME FUNCTION IS OF MCB BUT THERE IS NO SETTING
RCCB USED FOR PROTECTION OF PROPERTY AND PERSON IT DETECTS
LEAKAGE CURRENT AND BREAKS CIRCUIT
RATED CURRENT IS THE CURRENT FOR WHICH EQUIPMENT CAN
CARRYSAFELY WHITHOUT HEATING OF ITS PART ABOVE ALLOWABLE
TEMPERATURE
THERE SHOULD BE SUUFICIENT RESIDUEL MAGNETISM IN POLE OF
MOTOR TO SHOW VOLTAGE IN CASE OF DC MOTOR , OFCOURSE IT CAN
RUN AS GENERATOR
IN AC MOTOR NA BHAI NA
| Is This Answer Correct ? | 26 Yes | 3 No |
Post New Answer View All Answers
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?
How to calculate the sag on transmission Lines.
i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com
Why derating factor os applied on Cables?
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]
why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)
What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?
What is the main use of rotary phase converter ?
Why back emf used for a dc motor? Highlight its significance.
how to identify vector group of three phase transformer by voltage method?
In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring
What is notching in dc machine?
