In an ammeter used for measurement of current, what is the meaning of the repr

In an ammeter used for measurement of current, what is the
meaning of the representation of range as '0-50-300'?

Question Posted / ranga2k8

4 Answers
9039 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In an ammeter used for measurement of current, what is the meaning of the representation of range ..

ABOVE REPRESENTATION SHOWS IT IS AN SUPPRESED SCALE OF
AMMETER
0-50-300A -------> IT MEANS IT MEASURES CURRENT FROM 0-50A
AND 300 INDICATES THAT 6 TIMES OF MAXIMUM CURRENT i.e
50*6=300
AT THE TIME OF SWITCHING CURRENT GREATER THAN THE NORMAL
VALUE
IT IS ABOUT 5-6 TIMES THE NORMAL VALUE
AT STARTING THE NEEDLE IN AMMETER GOES TO 300 AND WITH IN
FRACTION OF SECONDS COMES TO NORMAL VALUE

Is This Answer Correct ?

6 Yes

0 No

In an ammeter used for measurement of current, what is the meaning of the representation of range ..

Answer / mahesh

It is a meter that can used in motor fdr. means motor FLC
is 50 Amp. & it's starting current is 6 times, i.e.300AMP.

Is This Answer Correct ?

3 Yes

0 No

In an ammeter used for measurement of current, what is the meaning of the representation of range ..

Answer / jay shah

It means the ammeter has a provision to select between 0-
50amps or 0-300amps full scale range.

Is This Answer Correct ?

7 Yes

6 No

In an ammeter used for measurement of current, what is the meaning of the representation of range ..

Answer / sella

THIS TYPE AMMETER WILL BE USED IN MOTOR FEEDERS. IF THE
MOTOR'S FULL LOAD CURRENT 50 MEANS IN STARTING TIME IT WILL
TAKE 50x6 TIME=300AMPS. THAT'S WHY WE ARE USING THIS TYPE
AMMETER IN MOTOR FEEDER. IN THIS AMMETER UPTO 0-50 AMPS
PROPERLY DEFINED IN DISPLAY BUT AFTER 50-300A THEY JUST
MENTION IN DISPLAY. IF WE USE NORAML AMMETER(0-50AMPS).IN
STARTING TIME METER WILL BE FULLY CLOSED FOR SOME SECOND
BECAUSE OF THIS METER ACCURACY WILL GO DOWN. IN NORMAL TIME
METER NEEDLE IN ACCELATION WE CAN'T MEASURE PROPER VALUE.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what r the sizes of CB's? how to select CB's?

1 Answers

what are transmission line parameters and transmission line constants?

1 Answers

What does a permanent magnet generator do?

1 Answers

we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

0 Answers NHPC,

why we used servo motor insted of inducation motor?

1 Answers

what is feed back and what are feed back amplifiers?

0 Answers

what is the meaning of WYE and DELTA in Electric meter?

0 Answers

Why used IGBT IN AC Drives

4 Answers

Fot testing new star-delta 132 kw motor in electrical worshop.we should check in star or delta connection as we do not have higher capacity cable in worshop?

4 Answers Adani,

I am an electrical engineer, I found variation in KWH between DG and EB for Same load for same duration, can any one help me why this variation arises?

1 Answers

why v use only sodium bulb or orange color lights on streets, y nt CLF OR TUBE LIGHTS

3 Answers

how to calculate cable size in diffrent loads?

0 Answers ABB, Sterling,

For more Electrical Engineering Interview Questions Click Here