Interested to Buy Any Domain ? << Click Here >> for more details...
what is the difference between relay and a contactor.
- 5 Answers
- 17274 Views
- Siemens, I also Faced
- E-Mail Answers
Answer Posted / arun kumar
Relay:-is the sensing device which detects the foult and
give the command to the ckt breakers to break the ckt.
contactor:- is a switching device which. Is used to large
power ckt.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Explain the advantages and disadvantages of thermal power plant?
What are the protections for safe running of electric generator?
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing
i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.
Write a note on Treatment for electric shock.
What is Servo Ventilated Motor?
What is voltage ratio of a transformer?
is IS says that neutral should be brought to switch box. and this one is a recomended practice
Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
what could be the RMS value and average value of a 4 phase sine wave?
What is marx circuit?
In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
Differentiate between low pass, high pass and band pass filter?
