YBM Prefabricated Substation

Your Professional YBM Prefabricated Substation Supplier

 

Shaanxi Sefon Electrical Equipment Co., Ltd. (referred to as Sefon), established in 2009, is a high-tech enterprise integrating research and development, design, production, sales, service, and power engineering general contracting. Our company mainly produces 35kV and below oil immersed transformers, dry-type transformers, special transformers, dry-type iron core series reactors, high and low voltage switchgear, box type substations, prefabricated cabins, and power quality control products.

 

 
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Why Choose Us
 

Certification
Passed ISO9001:2008 quality management system certification, ISO14001:2015 environmental management system certification, and OHSAS18001:2007 occupational health and safety management system certification.

 

R&D Team
In recent years, the technology research and development team has independently developed and made significant technological progress in major products such as special power equipment and power quality equipment, based on the reference of advanced technologies at home and abroad, and has obtained more than ten national patents.

 

Advanced Equipment
WR horizontal winding machine; ZBR-1000 automatic cable winding machine; ZBR-1000 shearing machine; ZY-50 vacuum oil filter; HB electric hot blast constant temperature drying oven; WLJ-1200 corrugated paper board machine; SRX2600 three-dimensional iron core winding machine; DHR1400 foil winding machine; 303E-3-S busbar processing machine; ZQ4125 desktop drilling machine, etc.

 

Our Services
The company is fully committed to providing customers with meticulous and professional consulting services. For problems that arise during the use of products or equipment, based on user feedback, our company's after-sales service center will coordinate with them, including product installation, maintenance, and technical Q&A.

 

YBM Prefabricated Substation Specifications
 

High voltage compartment

Item

Unit

Parameter

Rated frequency

Hz

50 /60 Hz

Rated Voltage

KV

3.3KV , 6.0KV, 6.6KV

10KV 11KV 13.8KV 15KV 20KV 22kv

30KV 33KV 35KV 36KV

Max service voltage

KV

7.2 KV

12KV , 24KV

40.5KV

Rated current

A

400, 630, 1000, 1250 ,1600, 2000, 2150,...etc

Transfer current

A

1200 -3150 A

1MIN Power frequency withstand voltage , earth -phase

KV

42/48, 85/95

1MIN Power frequency withstand voltage , phase/fracture

BIL

KV

75/85, 170/185

Rated short circuit breaking current

KA

20, 31.5

Transformer compartment

Rated voltage

KV

3.3KV , 6.0KV, 6.6KV

10KV 11KV 13.8KV 15KV 20KV 22kv

30KV 33KV 35KV 36KV

Rated power capacity

KVA

200 KVA Upto 2.5 MVA

Tapping range

%

±2 X 2.5% , ±5%

Vector group

 

Yyn0, Dyn11

Short-circuit Impedance

%

4.0 , 4.2, 4.5, 6, 8

Low voltage compartment

Rated voltage

V

220, 380, 400, 415, 433, 440, 660, 690,800

Main circuit rated current

A

50 -4000

Branch current

A

5-800

Enclosure

Protection level

 

HV compartment

 

IP33, IP65..

LV compartment

 

IP33

Transformer compartment

 

IP23

Noise level

DB

≤ 50

 

Key Features
 
2
  • Ambient air temperature: -5℃~+40℃ and the average temperature should not exceed +35℃ in 24h
  • Indoor altitude above sea level: Maximum installation altitude: 2000m
  • Relative humidity should not exceed 50% at max temperature +40℃. Higher relative humidity is allowed at lower temperature. Ex.90% at +20℃. But in view of the temperature change, it is possible that moderate dews will produce casually
  • No fire, explosion danger, serious pollution, chemical corrosion and severe vibration
  • Installation gradient not exceed 5°
  • The equipment shall be installed in a place where there is no violent vibration and impact, and the place where the electrical components are not corroded.

 

Applications
 

Urban and Rural Development

Used for public power distribution networks, residential communities, high-rise buildings, and commercial centers.

Industrial Applications

Suitable for factories, mines, oilfields, and industrial parks, providing a reliable power source for various industrial operations.

New Energy Sector

Widely adopted in solar power plants, wind farms, and energy storage facilities, integrating with new renewable energy infrastructure.

Infrastructure Projects

Applied in ports, airports, subways, and highway systems to meet their power distribution needs.

 

 

Ordering Instructions
  • High voltage: Way of incoming line: terminal type, looped network type or double power in.

 

  • Transformer: The transformer type, serial-number, the connection symbol group, capacity and the impedance voltage of the transformer.

 

  • Low voltage Switch Supplier: The number of the outgoing ways and the rated current value of each outgoing switch.

 

  • Type of the busbar (copper or aluminum)

 

  • Layout of the transformer substation(with the operation corridor or not)

 

  • The material of transformer shell: composite board (commonly used), steel plate, stainless board or cement.
10kV YBM Prefabricated Substation

 

Warranty

 

 

Firstly we have quality certificates like CCC, ISO9001..etc for our switchgears & power equipments ,have CE,Rohs,CB,TUV,Kema..for their electrical parts and accessories. Secondly we supply 1 year quality guarantee,during this period we supply free repair,maintenance and technical support.Certainly for some of switchgears and power equipments, their using life is over 20 years,no problem.

 

 

Our Certificates

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FAQ

 

Q: Can your product be customerized?

A: Considering differences in voltage, frequency and other speciality of transformer product in different countries and
regions,our product can be customerized according to your requirements.

Q: When can I get the price?

A: Usually we quote within 24 hours after we get your inquiry.

Q: What about lead or shipping time?

A: The lead time depends on the quantity you ordered, generally within 30 days upon receipt of advance payment.

Q: What is the price of shipping?

A: Depending upon the port of delivery, prices varies.

Q: What are preferred Terms of Payment?

A: T/T, L/C

Q: Why should you buy from us not from other suppliers?

A: As an enterprise specializing in transformer production for 10+years.We have our own R&D and design team, We have over 10 patent certificates, as well as certificates such as ISO-9001, ISO-14001, ISO-45001, etc, we have high quality, fast delivery, guarantee after-sales service and factory price.

We're professional ybm prefabricated substation manufacturers and suppliers in China, providing high quality products with low price. We warmly welcome you to wholesale cheap ybm prefabricated substation made in China here from our factory. Contact us for customized service.

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