What is the difference between Relay and Contactor

Answer Posted / miriam

contactors has hold on contact while relays does not

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

1516


Define branch?

633


ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

1639


If a high resistance fault occurs,then what are the changes will happen in the system?

972


Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

1267






WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

1469


what are the installation procedure of high voltage power transformer,CT,CB&PT?

1617


Why are cables rated for 40 KA for 0.25 Sec fault current rating?

1522


Why are iron cores in transformers made laminated?

671


Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.

2108


HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?

1626


Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1512


how to protect motor in dol starter having capacity of 30 hp.40 hp?

2770


How to calculate Voltage regulation of 22 KV Over head Line.

1200


Why earthing is necessary for any equipment?

1184