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CURRENT
MEASURING TRANSFORMERS, UP TO
|
|
0,720
kV 3 kV 50 / 60 Hz 5 A (1A) Ith = 60 In Itth = 1,2 In Fs = 5 (10) IEC 185 |
MAIN FEATURES:
|
APPLICATION AND
HANDLING:
They are incorporated in the electrical switchgears for
indoor installation. They are used for the connection of ammeters and
current circuits of meters, protective and other measuring devices.
The transformer should never be left in operation with the
secondary connection open as the hazardous voltage and serious damaging
of transformer insulation can occur.
TESTING:
Type tests are performed according to IEC, Croatian Ministry
for measuring and standards, Croatian register of shipping and Bureau
Veritas.
NOTE:
By connecting the burden with lower power from the core power
it is received the higher security factor, and it is necessary to make
protection the meter instrument from the reason higher secondary current.
For accuracy limit factor, it is the same dependence.
TIP:
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ST
- 1
|
|||||||
A:
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10-300
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400
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500-600
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750-1200
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||||
VA:
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5
|
10
|
5
|
10
|
10
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15
|
10
|
15
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kl.
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
TIP:
|
NST
- 1, FS 10
|
||||
A:
|
200
|
250
|
300
|
||
VA:
|
5
|
5
|
10
|
5
|
10
|
kl.
|
1
|
0,5
|
1
|
0,5
|
1
|
TIP:
|
NST
- 2, FS 5 - FS 10
|
|||||||||||
A:
|
400
|
500
|
600
|
800
|
1000
|
1200,1500
|
||||||
VA:
|
5
|
10
|
10
|
15
|
10
|
15
|
10
|
15
|
10
|
15
|
10
|
15
|
kl.
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
0,5
|
1
|
We retain the right of changing the data.