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Question
what is the main function of contactor?????
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
When a relay is used to switch a large amount of electrical
power through its contacts, it is designated by a special
name: contactor. Contactors typically have multiple
contacts, and those contacts are usually (but not always)
normally-open, so that power to the load is shut off when
the coil is de-energized. Perhaps the most common
industrial use for contactors is the control of electric
motors.
 
Is This Answer Correct ?    27 Yes 1 No
Doli Tomar
 
Answer
# 2
The function of a contactor is to make or break the circuit
on receiving a command.It is used to design auto ckts.
 
Is This Answer Correct ?    21 Yes 3 No
Sdr
 
 
 
Answer
# 3
contactor has main function to control the power through
low power (push button etc.)
 
Is This Answer Correct ?    14 Yes 8 No
Dilawer
 
Answer
# 4
The contactor means the contact to make or break the circuit with useful protection.basically contactor used in starter circuit. 
Is This Answer Correct ?    7 Yes 2 No
Baljeet Singh
 
Answer
# 5
where the no. of operation is more, this contactors are
used.
 
Is This Answer Correct ?    3 Yes 5 No
Sridhar
 

 
 
 
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ward lconard control Bhel 5
if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?   3
what are the names and size of various conductors used in transmission lines Power-Grid 1
I have suguna 3 hp pump for my agreeculture work.It deliver the water from 45 feet well .I suffered by powercut.During powercut i got 2phase supply only .My question is can i run the pump in 2 phase supply using capacitor?.Can u explain me how to connect the capacitors?   2
why two contacts(in series) are using in closing circuit   3
for which possible reasons a motor can fail to start?? Essar 4
If the primary side current of 33/11 transformer is 64 amps then what will be secondary side current?   2
What kind of battries are generaly used with Disel Generator? Exide 1
meaning of two lines in between the transformer single line diagram??   3
What is RCBO? hw it works   2
 
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