3
You visited us
3
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Other
Measurement
Torque and Energy Relation
An energy met...
Question
An energy meter, having meter constant of 1200 rev/kWh, makes 20 revolutions in 30 seconds for a constant load . The load in kW is
2
Open in App
Solution
The correct option is
A
2
1200
r
e
v
/
k
W
h
,
20
r
e
v
,
30
s
e
c
P
l
o
s
s
=
20
×
3600
1200
×
30
=
2
k
W
Suggest Corrections
10
Similar questions
Q.
An energy meter rated as 5A, 230 V makes 600 revolutions per kWh. If in a test at full load upf, it makes 6 revolutions in 30 seconds. Which of these given statement(s) is/are not correct?
Q.
The meter constant of a 230 V, 10 A watt-hour meter is 1800 revolutions per kWh. The meter is tested at half load and rated voltage and unity power factor. The meter is found to make 80 revolutions in 138 seconds. The meter error at half load is ______ % fast.
Q.
A dc A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as
Q.
A periodic voltage waveform observed in an oscilloscope across load is shown below. A moving iron (MI) meter connected across the same load reads_______volts(Answer upto 2 decimal pleaces).
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Torque and Energy Relation
MEASUREMENT
Watch in App
Explore more
Torque and Energy Relation
Other Measurement
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app