Why choose MV/LV compact substations

• Compact structure
• Strong complete set
• Environmentally-friendly production
• Safe and reliable operation
• Easy maintenance
• Beautiful appearance

Latest developments: Expandingthe portfolio

Putuo Electric introduces FreeCombination™Technologythat combines various types of transformer production into one united mechanism to improve production efficiency, stabilize product quality, and enhance product performance.

All these transformers can be designed, customized, and supplied with a wide variety of accessories, as required.

Putuo MV/LV compact substations are able to reach 3150 kVA and operating voltages of up to 40.5 kV. This product is a kind of new type complete set equipment which could achieve energy saving and cost reducing in urban and rural substation construction and transformation.

1. The product is composed of medium voltage power distribution equipment, transformer and low voltage power distribution equipment, divided into three functional compartments, which are medium voltage room, transformer room and low voltage room. The medium and low voltage rooms are fully functioned. Preliminary power distribution system at medium voltage side can be arranged in looped network power supply, terminal power supply, dual power supply and other power supply methods. Medium voltage metering components can be installed to meet medium voltage metering requirements. The transformer room could be S11,S11-M R and other low loss Oil immersed transformer and dry transformer. Transformer room is equipped with automatic start forced air cooling system and lighting system, The low voltage room could use panel or cabinet structure according to the user’s requirements to constitute the required power supply program, with power distribution, lighting power distribution, reactive power compensation, power metering and power measurement functions, to meet the user’s different requirements, to facilitate user’s power supply management and improve power supply quality.

2. Medium and low voltage rooms are arranged compact and reasonable, convenient to operate and overhaul. Medium voltage circuit breaker has anti-misoperation interlock function. According to the user’s requirements. the transformer could access transformer main door from the track, ln addition, the transformer door is equipped with labyrinth ventilation. Every room is equipped with automatic lighting device. in addition, the performance of selected elements for medium and low voltage switchgears has features of reliable performance. simple operation and convenient overhaul. The top cover of substation is dual-layer insulation structure, which could reduce solar radiation. The surrounding eaves have ventilation holes, forming convection function with every functional room, to facilitate ventilation and heat dissipation, The bottom base is steel structure. with sufficient strength and rigidity.

3. Natural and forced ventilation two cooling methods are adopted to keep good ventilation and cooling performance. Transformer room has temperature controller which could automatically control the transformer temperature, ensuring full capacity operation of the transformer.

4. Depending on application conditions, different structural forms and materials could be used to meet different use requirements and ensure normal operation of the substation, The enclosure of substation could be made of ordinary steel, stainless steel, aluminum alloy plate, colored composite plate, partially or completely going through surface treatment, so that the shell could have long-term outdoor use conditions, ensuring waterproof, dustproof performance, with long service life and beautiful appearance. The basic structure can be roughly divided into:
-General substation which is made of ordinary steel plate
-High anti-corrosion type substation which is made of stainless steel or aluminum alloy plate
-Heat preservation and insulation type substation which is made of colored composite plate
-Other kinds of substations

5. Incoming and outgoing line are cables, and we also can use other types according to customer’s special requirements.