Underground Transformer

Underground Transformer

Underground transformers are equipment used for voltage transformation. This device is divided into two parts: above ground and underground, suitable for urban environments (installed in basements or cellars), especially for densely populated central cities.
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underground transformer

Product Introduction

Underground transformers are equipment used for voltage transformation. This device is divided into two parts: above ground and underground, suitable for urban environments (installed in basements or cellars), especially for densely populated central cities. The ground mounted diversity billboard and low-voltage switch box are integrated, and the body adopts a stainless steel fully sealed structure, equipped with a waterproof concrete base and drainage system, which can achieve safe operation in the pit.

 

transformer

 

technical feature
1. Suitable for urban environments (installed in basements or cellars), especially for densely populated central cities
2. Lighting and power systems suitable for streets, highways, bridges, tunnels, parking lots, airports, ports, tourist attractions, etc
3. The high and low voltage incoming and outgoing lines adopt a waterproof, fully sealed, fully insulated, and fully shielded wiring method
4. The outer shell of the box is made of anti-corrosion stainless steel, fully sealed, and can be immersed in water for a period of time
5. The protection system fully considers the convenience and safety of operation;
6. Using an operating rod to operate a buried transformer, it has the same operating mode as a combination transformer
7. Fully considering the particularity of heat dissipation conditions, the transformer adopts a low loss and low temperature design;
8. Install waterproof access protection and automatic drainage measures in the transformer cellar.

 

Product Paramenters

 

Rated Capacity

Voltage Ratio

Vector Group

No-load Losses(kw)

Impedance

30kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.1

4%

50kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.13

4%

100kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.2

4%

200kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.34

4%

315kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.42

4%

500kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

0.6

4%

1000kva

380v/3kv/6kv/11kv/33kv

Dyn11/Yd11/Yyno

1.15

4.5%

1250kva

6kv/11kv/33kv

Dyn11/Yd11/Yyno

 

4.5%

2500kva

11kv/33kv

Dyn11/Yd11/Yyno

2.3

 

4000kva

11kv/33kv

Dyn11/Yd11/Yyno

2.8

 

10mva

11kv/33kv/69kv/110kv

Dyn11/Yd11/Yyno

 

 

40mva

11kv/33kv/69kv/110kv

Dyn11/Yd11/Yyno

 

 

100mva

11kv/33kv/69kv/110kv/220kv

Dyn11/Yd11/Yyno

 

 

 

 

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