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Address: 4-2, Building E, Huazhong Enterprise City, 16 North Avenue, Hankou, Wuhan City

Tel: 027-61503288

189 9560 1588

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YB27-12 0.4 series prefabricated box-type substation

Classification:

Box-type substation

Electrical products with voltage levels ranging from 3.6kV to 550kV, used for power generation, transmission, distribution, energy conversion, and consumption in the power system to provide on/off, control, or protection functions

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Product Details

Overview
YB series 12kV50Hz pre-installed substation (hereinafter referred to as American box transformer). It is used in 10kV ring network power supply, dual power supply or terminal power supply system as substation, power distribution, metering, compensation, control and protection device. In addition to the transformer, the high voltage side of the substation is also equipped with four-station (or two-station) load switch, backup protection fuse and plug-in fuse. The low-voltage side can be equipped with control appliances, power distribution appliances, compensation devices and meters according to user requirements. Transformer oil is used as insulation and arc extinguishing medium.
This product is to absorb the latest foreign advanced technology, combined with the actual situation of domestic research and development. It has the characteristics of small size, easy installation, low noise, low loss, full protection, simple maintenance, and high performance-price ratio. It is suitable for new communities, green belts, parks, stations, docks, hotels, construction sites, airports and other places.
This product in addition to meet the relevant standards of their respective components, but also in line with the relevant provisions of GB/T17467-98.
 
Features
The substation consists of upper and lower oil tanks and switch cabinets. The separation of the high-voltage switch oil tank and the transformer oil circuit ensures that the arc generated by the switch during the load operation will not affect the quality of the oil in the transformer, and the heat generated by the transformer will not significantly affect the temperature rise of the high-voltage load switch.
Small loss, strong overload capacity.
It can be used in ring network power supply, dual power supply or terminal power supply system, with convenient power supply mode conversion and reliable operation.
This product has a phase loss protection device. When the phase is missing, the low-voltage side switch can be automatically disconnected to prevent the non-full-phase operation of the three-phase electrical appliance.
 
Main technical parameters
● Rated voltage
● High-voltage side 12kV
● Low voltage side 0.4kV
● Rated capacity 100,125,160, 200, 250, 315,400, 500, 630, 800, 1000, 1250(kVA)
● No-load voltage regulation 2x2.5%
● Connection mode Dynll
● Rated insulation level
● Lightning impulse withstand voltage (full wave, peak) 75kV
● Power frequency withstand voltage lmin35kV
● Low-voltage side power frequency withstand voltage phase and relative to ground (1min)
● Main circuit 2.5kV
● Control and metering circuit 2.0kV
● Noise level <45dB
● Order protection class IP34
● Cooling mode Oil-immersed self-cooling
● Normal use environmental conditions
Altitude: no more than 1000 meters.
● Ambient temperature: not higher than 45 ℃, not lower than 25 ℃, daily average temperature difference is not more than 35 ℃.
● Wind speed does not exceed 35 m/s.
● There is no explosion hazard, chemical corrosion and severe vibration in the installation site.
● Installed on cement platform or other flat and solid platform.
● The air is self-cooling.

The switch cabinet has the functions of overhead incoming and outgoing lines, cable incoming and outgoing lines, bus connection, etc. Mainly suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industry and textile, factories and mining enterprises and residential areas, high-rise buildings and other different places. It mainly includes high-voltage isolating switch and grounding switch, high-voltage load switch, high-voltage automatic coincidence and segmenter, high-voltage operating mechanism, high-voltage explosion-proof distribution device and high-voltage switch cabinet.

Correct Selection of Breaker Breaking Capacity
On the primary system diagram, the selected circuit breaker, indicating the circuit breaker model, rated working voltage and rated working current, must also be selected for the breaking capacity of the circuit breaker. With user drawings, the breaking capacity of the circuit breaker is not selected, which makes it difficult for the manufacturer to carry out engineering design. The breaking capacity selection should be based on the system short-circuit parameters. If the manufacturer does not understand the system short-circuit parameters, it is difficult to make the correct choice. There are also some user drawings, regardless of the system short-circuit parameters, blindly select high-break parameters, resulting in unnecessary waste of funds. The correct choice of breaking capacity is very important, not only to ensure safe operation, but also to consider reducing product costs.

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YB27-12 0.4 series prefabricated box-type substation

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