10KV 2000kva 3000kva 5000kva 3 phase automatic step voltage regulator

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$5,000.00 - $30,000.00 / Set | 1 Set/Sets (Min. Order)
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Lead Time:
Quantity(Sets) 1 - 1 >1
Est. Time(days) 15 Negotiable
Customized logo (Min. Order: 1 Sets)
Customized packaging (Min. Order: 1 Sets)
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Quick Details
Place of Origin:
Shaanxi, China
Brand Name:
Model Number:
SVC, Power
Three Phase, 3 phase
Current Type:
Product Name:
step voltage regulator
Rated voltage:
Rated capacity:
315KVA -12500KVA
Voltage regulating range:
Cooling mode:
Copper Winding
Supply Ability
Supply Ability:
100 Set/Sets per Month
Packaging & Delivery
Packaging Details
Standard export wooden case
Qingdao, Tianjin, Shanghai, Guangzhou etc
Picture Example:
Lead Time :
Quantity(Sets) 1 - 1 >1
Est. Time(days) 15 To be negotiated
Product Description

10KV 2000kva 3000kva 5000kva 3 phase automatic step voltage regulator


10KV 3 phase automatic step voltage regulator automatically adjust the gear of on-load tap changer according to the condition of circuit voltage to realize the change of transformer ratio, so as to ensure that the output voltage is stable in a certain range. It can be widely used in power supply circuit with long distance of power supply, large power supply load, large voltage fluctuation and power quality can’t meet the usage standard.

Technical specs of 10KV 3 phase automatic step voltage regulator 



Voltage level




Rated capacity


315KVA -12500KVA

500 -24000KVA


Three phase

Rated frequency


Wiring method

Ya0(three phase three wire star connection)

Cooling mode

ONAN (Oil Natural Air Natural)

Tap grade

7 gear or 9 gear

Mechanical life

>500000 times

Electrical life

>50000 times

Voltage regulating range

(-10%-+10%),(-5%-+15%),(0-+20%),(0-+30% ) are optional

Protection function

Over current, under voltage, daily action times, high and low gear limit protection etc.

Display function

Real time display of wire voltage, current, gear, daily action times and total action times.



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Company Information

Shaanxi Sefon Electrical Equipment Co. Ltd is a high-tech enterprise specializing in R & D, production , sales of electrical equipment and EPC of electric power supply project. 


1. Professional production base +Professional production equipment+ Strong production capacity

 2. Lean manufacturing, produce high quality products 

 3. Team activities 



Packaging & Shipping

Standard packing: Standard exported wooden case or according to customers' requirements.

Land transportation and sea transportation for option. 


Installation case

SEFON's Step Voltage Regulator are widely used in many field, such as rural power grid, hydropower station, power station, mining industry etc 





SEFON got severla honors from Enterprise Quality Managment Center of Shaanxi . 



SEFON has its own independent intellectual property rights, and got many patents for voltage regulator & transformer etc. 


Quality Certificates 

SEFON has passed CE, ISO9001:2008 quality management system, ISO14001; 2004 environmental certification system, GB / T28001-2001 occupational health and safety management system certification. 


Our Services

SEFON always insists on " customer first, quality priority". 

Pre-sales service

1. We have special technicans to support sales team to offer the best solution based on  customers' requirements. 

2. All the products will be tested before delivery. 

3. The service life of products is about 20 years, we supply 2 years guarantee after delivery. 

After-sales service

1. We can arrange technicians to install the equipments and train your staff on site.

2. Our technicans can guide your installation or maintenance by video, calling or email at anytime. 



Q: Are you a manufacturer or trader?

A: We are a professional and leading manufacturer  of voltage regulator, transformer, series compensation, breakers, high & low voltage switchgear for more than 10 years in China.  

Q: Does your company  accept ODM and OEM?

A: Yes. Our R & D team owns latest technology , we can develop and produce products based on the customers' requirements. 


Q: What is your delivery time?

A: It is depend on your quantity. In general, the delivery time is 7-30 days after receiving the payment. 


Q: How to make an order ? 

A: Confirm the product name, type , quantity, rated voltage & capacity, detailed technical parameter if needed. 


For further information, pls refer to our homepage  https://sxsfhn.en.alibaba.com/

If you are interested in our products, pls don't hesitate to contact us or send us inquiry.