
YB Series Prefabricated Substation
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YB series prefabricated substation is a compact complete power distribution device that combines high-voltage electrical equipment, transformers, low-voltage electrical equipment, etc., it can be used in urban high-rise buildings, urban and rural buildings, residential quarters, high-tech development zones, small and medium-sized factories, mining and oil fields, and temporary construction power consumption and other places, as well as for receiving and distributing power in the power distribution system.
Main function
Name | Unit | High voltage electrical equipment | Transformer | |
Rated voltage |
kV | 10 | 10,0.4 | 0.4 |
Rated current |
A | 630 | 100~2500 | |
Rated frequency |
Hz | 50 | 50 | 50 |
Rated capacity |
kVA | 100~1250 | ||
Rated thermal stability current |
kA | 20/4S | 30/1S | |
Rated dynamic stability current (peak value) |
kA | 50 | 63 | |
Rated making short-circuit current (peak value) |
kA | 50 | 15~30 | |
Rated breaking short-circuit current |
kA | 31.5(Fuse) | ||
Rated breaking load current |
A | 630 | ||
1 min power frequency withstand voltage |
kV |
To ground, interphase 42, interphase 48 |
35/28(5min) | 20/2.5 |
Lightning impulse withstand voltage |
kV | To ground, interphase 75, interphase 85 | 75 | |
Shell protection grade |
IP23 | IP23 | IP23 | |
Noise level |
dB |
Oil transformer ≤55, Dry transformer≤65 |
||
Number of circuits |
Unit | 1~6 |
2 |
4~30 |
Maximum reactive compensation at low-voltage side |
kvar | 300 |
prefabricated substation Features
1. This product is composed of high-voltage power distribution device, transformer and low-voltage power distribution device. It is divided into three functional compartments, namely, high-voltage compartment, transformer compartment and low-voltage compartment. The high-voltage and low-voltage compartments have complete functions. The primary power supply system at the high-voltage side can be arranged into multiple power supply modes, such as looped network power supply, terminal power supply, dual source power supply, etc. It can also be equipped with high-voltage measuring elements to meet the needs of high-voltage metering. S9, SC and other series of low loss oil immersed transformers or dry-type transformers can be selected for the transformer room; According to the user's requirements, the low-voltage room can adopt panel or cabinet mounted structure to form the power supply scheme required by the user. It has multiple functions such as power distribution, lighting distribution, reactive power compensation, electric energy metering and electricity measurement to meet the user's different requirements. It is also convenient for users to manage power supply and improve power supply quality.
2. The high-voltage chamber has a compact and reasonable structure, and has a comprehensive anti misoperation linkage function. When required by the user, the transformer can be equipped with rails to facilitate access from the gates on both sides of the transformer room. All rooms are equipped with automatic lighting devices. In addition, all elements selected for high and low voltage rooms are reliable in performance and easy to operate, making the product safe and reliable in operation and easy to maintain.
3. Natural ventilation and forced ventilation are adopted. The transformer room and high and low voltage rooms are equipped with ventilation ducts, and the exhaust fan is equipped with a temperature control device that can automatically start and close according to the set temperature to ensure the normal operation of the transformer.
4. The box structure can prevent rainwater and dirt from entering, and the materials are made of color steel plates with anti-corrosion and thermal insulation functions. It has the conditions for long-term outdoor use to ensure anti-corrosion, waterproof and dust-proof performance, long service life and beautiful appearance.
Packaging&Shipping
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