Answer / daher

use overload circuit breaker to protect it, thermal
overload protects your motor againts overloading or/and
overthermal switch mount it on the motor stator.

Answer / aditya sharma

Overload relay will be use for overload protection
Different different rating of overload relay

Answer / nikhan

# 1 Motor
Rating Motor F.L.C in Amp
0.25 KW 0.4725
0.37 0.6475
0.5 0.9625
0.75 1.3125
1.1 1.925
1.5 2.625
2.2 3.85
3 5.25
3.7 6.475
4 7
5 - 5.5 9.625
7.5 13.125
9.3 16.275
11 19.25
15 26.25
18.5 32.375
22 38.5
30 52.5
37 64.75
45 78.75
55 96.25
75 131.25
90 157.5
110 192.5
132 231
150 262.5
160 280
200 350
250 437

Answer / kiranbabu

Motor
Rating Motor F.L.C in Amp
0.25 KW 0.4725
0.37 0.6475
0.5 0.9625
0.75 1.3125
1.1 1.925
1.5 2.625
2.2 3.85
3 5.25
3.7 6.475
4 7
5 - 5.5 9.625
7.5 13.125
9.3 16.275
11 19.25
15 26.25
18.5 32.375
22 38.5
30 52.5
37 64.75
45 78.75
55 96.25
75 131.25
90 157.5
110 192.5
132 231
150 262.5
160 280
200 350
250 437.5

GIVE CONDITION FOR MAX EFFICIENCY OF 3-PH TRANSFORMER AND D.C MOTOR

2 Answers   BARC,

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I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz

0 Answers   RRB,

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How do performance buccholz relay testing in power transformer

1 Answers  

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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What is the diffrece between ACB & MCCB

8 Answers  

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i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?

1 Answers  

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when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?

1 Answers  

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If DG runing time Neutral earth connection Dissconect what will be the effect in load and equipments.

3 Answers   GE, HP, Reliance,

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shall we use a machine having 60Hz frequency in india ? why?

4 Answers  

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what is 30-phase of transformer

0 Answers  

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How to increase the kvah ?

1 Answers   IGP,

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what is booster? and how it is connected in a circuit?

0 Answers   APTransco,

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