Oil Filled Current Transformer

price: Negotiable
Total supply:
Delivery term: The date of payment from buyers deliver within days
seat: Hunan
Validity to: Long-term effective
Last update: 2018-10-18 10:05
Browse the number: 468
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Product details

Oil filled current transformer,   Oil-paper insulated CT, Dead tank type, Hair pin type CT,  12kV--550kV

Product details:
12kV…550kV  LB-series current transformer
Oil-filled current transformers is applied for metering and protect in 12~550kV High-voltage substation.
——The features of the equipment comply with IEC 60044-1, IEC 61869-2, IEEE/ANSI C57.13, CAS, AS
——Modern and compact design,good insulation performance,high mechanical strength
——There are various options on output and accuracy class
——The most modern manufacturing technology on oil-paper-insulation manufacture
——Strict quality control and routine inspection

Main technical parameters 
· Highest system voltage: 12~550kV
· Rated frequency: 50Hz or 60 Hz
· Polarity:Negative
· Rated primary current: 1~3000A
· Rated secondary current: 1A or 5A
· Accuracy class of the windings for measurement: IEC CL0.15, 0.2S, 0.2, 0.5S, 0.5, 1, ANSI 0.15S, 0.15
· Accuracy class of the windings for protect: 5P, 10P, 5PR, 10PR, TPY, TPS, TPX, TPZ, PX
· No. of the secondary windings: 1~8
· Rated output: 5~200VA, C800
· Security factor of the instrument (Fs):5, 10
· Accuracy limit coefficient:5, 10,15,20,25,30,40
· Accuracy limit conditions of the TPY class:
a. Symmetrical multiple of the short time current Kssc=20 or 25
b. Time constant of primary windings Tp: 100ms
c. Direct Current Amount of short circuit current 100% (full migration)
d. Stipulated operating cycle 
C-0.1S-O-0.5S-C-0.1S-O or C-0.1S-O-0.4S-C-0.1S-O
e. The guaranteed transient error time during reclosing:40ms or 50ms
f. Remanence coefficient≤0.1 
500kV, 400kV, 330kV, 275kV, 230kV, 220kV, 161kV, 150kV, 138kV, 132kV, 115kV, 110kV, 88kV, 69kV, 66kV, 46kV, 34.5kV, 33kV, 22kV, 13.8kV, 10kV oil filled current transformer,  high voltage Current transformer  High voltage CT.

SANDAIN  78 Nos 330kV CTs operating in Belarus, type: LB-362, Supply for Nuclear Power Electric T & D project.

SANDIAN  45 Nos 330kV CTs operating in Gaoling 500kV DC-AC back-back convector Substation

Special CT:  current ratio1:1 A,  type: LB-362


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