DAHU electrical specializes in the production of 0.5-40.5kv transformers. It has cooperated with many national power bureaus for 10 years and exported to foreign markets. If there is any quality problem within the warranty period, it can be replaced free of charge.
Product Description:
Indoor casting opening and closing through the center of the protection of high-voltage zero sequence transformer is a kind of epoxy resin casting insulation indoor type current transformer, mainly used in AC 50/60 Hz line, suitable for high-voltage three-phase AC generators, motors, zero-sequence overcurrent protection.
It is mainly used in AC 50/60 Hz line, suitable for zero sequence overcurrent protection of high voltage three-phase AC generator and motor.
Technical parameters:
Rated insulation level: 0.72/3 kV.
Rated frequency: 50/60 Hz.
Product standard: The product performance conforms to GB/T 20840.1, GB/T 20840.2, IEC 61869-1, IEC 61869-2 and DL/T726 standards.
Conditions of use:
Installation place: indoor.
Ambient temperature: -25°C to +40°C.
Altitude: not more than 2000 m, more than 2000 m please confirm with the manufacturer shall prevail.
Ambient humidity: the average value of relative humidity in 24 hours does not exceed 95%.
Filth level: Class II.
The installation place should be free from serious vibration and bumps.
The installation place should be free from gas, vapor, smoke, chemical deposition and its explosive and corrosive medium that seriously affect the insulation of the transformer.
Structure overview:
This type of current transformer is fully enclosed epoxy resin casting insulation.
The product's outgoing line marking: primary for P1, P2, secondary for S1, S2.
This model has a total of 2 secondary terminals, can support up to 1 secondary winding (depending on the parameters)
.
Model code:
The model code includes information such as current transformer, through-core type, epoxy resin casting, open-close type, rated voltage level, internal hole aperture, etc.
Rated primary current and secondary current.
Rated primary and secondary currents:
Rated primary current I1n has various specifications, such as 50A, 75A, 100A, 150A, 200A, 300A, 400A, etc.
Rated secondary current I2n is usually 1A
.
The above information provides you with a comprehensive introduction to indoor casting open-close and through-center protection high voltage zero sequence transformers, including product features, technical parameters and conditions of use, etc., to ensure that you can get the high-quality products that meet your needs.
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Product Description:
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