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| WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder
in LV substation panel.It is supplying to a lighting & power
socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8
times of Ir , tsd = 0.5 sec( I2 t off).
Sometimes this MCCB is tripping .But no trip in DB MCB.
Can anybody tell me reason ?
From where i can know about the MCCB settings? |
| 5 |
| what is differance between PT-100 and thermocouple?
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| 1 |
| what is the
speed of
electricity? |
Bhel | 9 |
| how a vibration switch's high signal will going to trip
the motor? can u explain with some examplesand wiring
diagrams? |
Bhel | 1 |
| The ratio of white balls and black balls is 1:2. If 9 gray
balls is added it becomes 2:4:3. Then what is number of
black balls ? |
CTS | 3 |
| 1. what is the power factor and whatis his losses
2. what is the working procedure of 51RNB AND 87 relay |
ABB | 2 |
| why after termination of HT cable armoured earth connected
one end, why not connect other end.pls tell me correct
answer. |
| 3 |
| motor work in hat principle
generator work in what principle
transformer work in what principle
pls explain with details or answered to
ramadoss.sepc@gmail.com |
Vestas | 1 |
| why generator and t/f ratings given in kva?
|
| 2 |
| What is Avg. Power Consumption of 2 TR Split A/C???How v
can calc. this??? |
Emerson | 1 |
| IF WE SELECT THE 60H FREQUENCY IN INDIA WHAT WILL THE GOOD
AND BAD EFFECT ? |
| 3 |
| What is Energy Audit..? |
| 2 |
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