Overview
This
product is a three-phase five-column anti-resonance voltage transformer, which
can effectively prevent the ferromagnetic resonance from burning the
transformer. This product can still operate normally for a long time when the
system has 100% ground fault, and the protection winding (da.dn) is generated.
100V voltage makes the relay action; it is suitable for voltage measurement and
relay protection in AC 50Hz, rated voltage 10kV power system.
Executive
standard:
l GB20840.3-2013
"Transformers - Part 3: Supplementary technical requirements for
electromagnetic voltage transformers"
l JJG314-2010
"Testing Procedures for Voltage Transformers for Measurement"
l GB311.1-2012
"Insulation coordination of high voltage power transmission and
transformation equipment"
Conditions
of Use:
l The ambient
temperature is between -5 ° C and 45 ° C, and the daily average temperature
does not exceed 35 ° C;
l Relative humidity: the
daily average does not exceed 95%, and the monthly average does not exceed 90%
l The altitude is not
more than 1000 meters (please provide altitude when using at high altitude);
l Installation type:
indoor installation;
Technical
Parameters:
l Rated insulation
level: 12/42/75kV;
l Power factor cosΦ=0.8
(hysteresis);
Technical Data Sheet:
|
model
|
Rated voltage ratio (kV)
|
Accuracy level
|
Rated secondary output (VA)
|
Limit output (VA)
|
|
JSZW-10FR
|
10/√3/0.1/√3/0.1/√3/0.1
|
0.2/0.5/3P
|
15/15/50
|
300
|
|
10/√3/0.1/√3/0.22/√3/0.1
|
0.5/3/3P
|
30/300/50
|
500
|
Wiring schematic:
One N point is directly grounded, and the
secondary winding (da, dn) is used for relay or microcomputer monitoring. This
product is not allowed to repeatedly access the harmonic elimination device and
the secondary microcomputer harmonic elimination device, otherwise the PT will
be burned.
Do not ground other
points except one marked grounding point, otherwise the PT will be burned.
Installation
dimension drawing:
