Combined transformer (American type)
- Small volume, compact structure, the floor area is only about 1/3-1/5 of that of domestic European box-type substation in the same capacity.
- Fully insulating structure, safe and reliable.
- AS13 transformer with low loss and noise and strong overload capacity
- Flexible and reliable power supply mode, applicable to ring network and terminal.
- Various low voltage feed-out requirements can be satisfied and low-pressure measurement and outgoing line can be added as required by the customer
- Strong in corrosion resistance due to special process treatment, made of ordinary steel sheet or stainless.
- Be applicable to the places without severe factors such as fire hazard, explosion risks, serious dirt, chemical corrosion and violent vibration, widely applied to outdoor power supply places such as cities, residential communities, hotels, hospitals, plants and mines, airports, railways and wharfs currently.
Product Details
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Model Description
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Features
- Small size, compact structure, only 1/3~1/5 of the domestic floor space of the same capacity
- Fully insulated structure, safe and reliable.
- Adopt low-loss, low-noise, strong overload capability S13 type transformer.
- The power supply is flexible and reliable, and can be used for both ring and terminal.
- To meet various low-voltage feed-out requirements, low-pressure metering and outlet can be added according to user requirements.
- After special treatment, it has strong anti-corrosion ability and various shapes and structures. It can be made of ordinary steel plate and stainless steel.
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Conditions of Use
- Altitude: ≤1000m
- Wind speed: ≤35m/S (not more than 700pa)
- Ambient temperature: maximum temperature +40 ° C, minimum temperature -35 ° C
- Relative humidity: daily average is not more than 90%, monthly average is not more than 95%
- Shockproof: horizontal acceleration is not more than 0.4m/s2
- Vertical acceleration is not more than 0.15m/s2
- Installation site inclination: no more than 3°
- If the above conditions are exceeded, you can negotiate with the company.
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Technical parameters -
S/N
Item
Unit
Technical parameters
l
Main body of the transformer
Rated voltage of high-voltage side
10，10.5
2
Rated voltage of low-voltage side
0.4
3
Rated capacity
30-2500
4
Wiring method
Dynll, Yzn11, Yyn0
5
Rated frequency
50
6
Voltage regulation tap switch
±5 ±2x2.5%
7
Noise level
National Standard
8
Temperature rise of the oil level
≤55
9
Power frequency withstand voltage for lmin
High-voltage side
35
55
Low-voltage side
5
10
Lightning impulse withstand voltage (peak)
Full wave
75
125
Chopped wave
85
140
11
Cooling mode
Oil-immersed self-cooling
12
High voltage load switch
Rated voltage
12
24
13
Rated current
315/630
14
Rated short-time withstand current (4S)
20/16
15
Rated short-circuit making current
50/40
16
Full-load breaking times
100
17
Mechanical life
Times
2000
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Associated Solution
