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Capacitor voltage transformers

Country/Region china
Company SHANDONG TAIKAI INSTRUMENT TRANSFORMER CO,.LTD
Categories Oil Immersed Transformer
Telephone 0538-8932577 8933806, 400-619-6979
ICP License Issued by the Chinese Ministry
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Capacitor voltage transformers

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The oil immersion positive vertical current transf...
Release time:2012-8-23
Introduce :
Product role
LB Series 35kV to 220kV oil-immersed positive vertical current transformers, mainly for the power system for the current energy measurement and relay protection.
Product structure
Features
(1) Insulation performance: 80% frequency withstand voltage under the partial discharge amount not greater than 5pC;
(2) a low dielectric loss factor, does not rebound during the operation;
(3) one can achieve multi-turn, easy to meet the accuracy requirements of the current comparison hours;
(4) The amount of oil to meet several tests to check the oil;
(5) a low center of gravity, seismic performance suitable for seismic;
(6) reliable structure, stable operation.
Technical parameters

Model

LB6-35

LB6-110

LB7-220

Rated voltage (kV)

35

110

220

The highest voltage (kV)

40.5

126

252

Rated frequency (Hz)

50

The short-time power frequency withstand voltage (kV)

95

230

460

Lightning impulse voltage (kV)

200

550

1050

Rated primary current (A)

50-1500

50-2500

50-2500

The current expansion of multiples

120%

Rated secondary current (A)

1 or 5

Rated output (VA)

10 to 50

Accuracy class

5P, 10P, TPY, 0.5,0.5 S, 0.2,0.2 S

Protection level accuracy limit factor, ALF

10 ~ 30

Measurement level instrument security factor, FS

5,10

Short-time thermal current (kA / s)

5.3 ~ 50/3s

The Dynamic Stability current (kA)

13 to 125

Dielectric loss factor tan (90 ℃)

≤ 0.4%

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