Hi.I want to ask how to calculate contactor rating current?
for example I have 460 V , 100 A (induction motor)
calculate contactor rating current?
Answer Posted / a.p.nanjappa
generally, 150 % of current rating of contactor or
contactor selection guide.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?
If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?
How to maintain ac plant?
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?
Explain how you decide what size of electrical wire do you need?
State the other types of Air Conditioners?
What is negative sequence over voltage element?
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?
What is installed in PAC that is control the humidity
Is potential difference materials property ..? if yes tnen how.. explain brifly.
why we are using Load factor?
what will happen if OLR CT in all phases are short circuted
What Normal(Tangent) towers and Tension(Cut-point) Towers?
Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method