Features of High Voltage Switchgear
1. After the vacuum circuit breaker trolley in the high voltage switch cabinet is closed at the test position, the trolley circuit breaker cannot enter the working position. (Prevent closing with load)
2. When the grounding knife in the high voltage switch cabinet is in the closed position, the trolley circuit breaker cannot enter the working position and close. (Prevent closing with ground wire)
3. When the vacuum circuit breaker in the high-voltage switch cabinet is closing, the front and rear doors of the panel are locked with the machine on the ground knife. (Prevent the charging interval by mistake).
4. The vacuum circuit breaker in the high-voltage switchgear is closed during operation, and the grounding knife cannot be closed and put into operation. (Prevent live connection to ground wire)
5. The vacuum circuit breaker in the high-voltage switchgear cannot exit the working position of the trolley circuit breaker when it is closed. (Prevent load broach)
Features of Low Voltage Switchgear
1. Reasonable design: unitized design according to the characteristics of various switches, such as escape ports and map production, and combined into functional units.
2. Universal structure, flexible assembly: C-shaped profiles meet the requirements of various structural forms. I, protection level and use surrounding conditions.
3. Standard modules can be separately composed of standard unit module structures such as protection, operation, conversion, and control.
4. Safety protection: The isolation between areas and the mutual isolation between the incoming and outgoing lines of functional units are used to effectively strengthen the safety protection performance.
5. Technical parameters: The main technical parameters are at the international leading level.
Switchgear Structure
The Specification
| No |
Item |
Unit |
Parameter |
| 1 |
Rated voltage |
kV |
7.2kV, 12kV, 17.5kV, 24kV |
| 2 |
Ratec frequency |
Hz |
50/60 |
| 3 |
Rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 4 |
Branch busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 5 |
Main busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 6 |
1 min power frequency withstand voltage(wet/dry) |
kV |
38/48, 50/60/60/65 |
| 7 |
Lightning impulse withstand voltage |
kV |
75, 95/125 |
| 8 |
Rated short circuit breaking current(peak) |
kA |
40/50/63/80/100 |
| 9 |
Short time withstand current(4s) |
kA |
20/25/31.5/40 |
| 10 |
Protection type |
|
IP4X for housing |
| No |
Item |
Unit |
Parameter |
| 1 |
Rated voltage |
kV |
36kV, 40.5kV |
| 2 |
Ratec frequency |
Hz |
50/60 |
| 3 |
Rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 4 |
Branch busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 5 |
Main busbar rated current |
A |
630, 1250, 1600, 2000, 2500, 3150, 4000 |
| 6 |
1 min power frequency withstand voltage(wet/dry) |
kV |
70/95 |
| 7 |
Lightning impulse withstand voltage |
kV |
170/185 |
| 8 |
Rated short circuit breaking current(peak) |
kA |
20/25/31.5/40 |
| 9 |
Short time withstand current(4s) |
kA |
40/50/63/100 |
| 10 |
Protection type |
|
IP4X for housing |
Our Workshop
Company introduction
1.Qingdao Hengfengyou Electrical Engineering Co., Ltd. (hereinafter referred to as Hengfengyou) is a large-scale enterprise group with electricity transmission and distribution as its main business,which integrates scientific research, development, manufacturing and trade. After 30 years rapid economy development in China, Hengfengyou now is a leading R & D, manufacturing and service base for MV
, HV and ultra-HV power distribution equipment in China. At present,we have 50 senior technicians and more than 300 employees, with a complete sales and service system. Our products sell well at home and abroad, and our annual output value adds up to $100 million. .
At present, Hengfengyou has 6 wholly-owned and holding subsidiaries, which are respectively engaged in R & D, manufacturing and service of transformers, switchgear, package/unit substation, pole-mounted high-voltage vacuum circuit breakers, new energy, and electrical engineering.
For a long time, the company has maintained close technical exchanges and cooperation with domestic and foreign universities, scientific research institutes and electric power enterprises.
2.Hengfengyou independently designed and developed SCB series dry-type transformer and SC series oil immersed transformer. Our product performs with high operation efficiency, and obvious energy conservation. The overall performance index reaches the world's advanced level.
The company also maintains long-term strategic partnership with Schneider, ABB, Simens, Chint and other electric suppliers. We absorbed foreign advanced experience in electrical equipment production and independently designed and developed a series of substation equipment, which realized the automation and intelligence of the substation, and of which the performance has been highly recognized by the user at home and abroad. In the following five years, the company plans to build an intelligent workshop with an annual output of 100000 transformers.Then,the intelligent robot will replace 80% of the existing labor force, which will greatly improve the production efficiency, lower production cost, and produce more energy-saving, environmentally friendly, more safe and reliable the product for the users!
Under China's one belt, one road policy and as an outstanding one of China manufacturing enterprises of power transmission and distribution equipment, Hengfengyou has provided reliable electrical products and services for more than 50 countries and regions in the world. A good reputation of the brand name "HFY" was established in the global market, and won wide recognition and trust from customers.
3.In the new era, the company will adhere to the service concept of "global intelligent electric service provider, make life better", and adhere to the enterprise tenet of "integrity, innovation, customer achievement". We take "high quality products, wholehearted service" as the team spirit, and provide more excellent products and services for customers at home and abroad. Hengfengyou sincerely hope to establish with clients at home and abroad long-term win-win cooperation facing the future!
HFY Certificate
The Finished Power Project
Our Services
1.Pre sale service
a. make technical solution
b. send quotation, technical data sheet and drawing
c. prepare power transmission plan, testing plan and shipment plan
2. In sale service
a. supervise the manufacturing schedule totally in accordance with the plan
b. send photos to customer during every manufacturing process(hold point)
c. inform the customer one week before testing.
d. quick response within 12 hours any time.
3. After sale service
a.All parts are under Two Years Warranty with defects from manufacturer. All spare parts and component can be offered for free from the original manufacturer or HFY.
b. Training
We will provide free training to your technician free of charge at our factory site in Shanghai, China. The total training period would be 2 working days. All travel and related expensed would be at the purchaser's expense.
c. Technical Documents:
Original operation and service manuals, the service manual is completed with wiring diagram, block diagram and trouble shooting information.
d. Installation
Usually, clients can do the installation and operation by themselves when following the detailed English user manual. If clients want our technician do this work, please read the following terms:
The initial installation is not included with the professional HFY team member. All installation with the Hengfengyou team must be scheduled at least 4 weeks in advance before actual trip taken. All necessary connectivity must be ready prior the service being scheduled.
While Hengfengyou team member arrives at the site for a complete and final installation, two days training course will be provide to the customer for operation and maintenance procedure. The initial installation is provided within 5 working days excluding travel days. The actual installation days may vary, based on different machine mode. Each day of working hour consist at 8 working hours. Any additional day will be charge according to our service fee listed below.
When initial installation is being called for the Hengfengyou team required, the surcharge will be made in advance by the purchase at US$100/person/day plus all travel expenses. Travel expenses; local and destination transportation charges (air, train, ferry, bus, taxi or any means of transportation required to arrive to/from destination); accommodation (minimum of 3 star hotel facility) and 3 daily meals
Our Team and Exhibition
FAQ
Q1: Is OEM/ODM available?
A1: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.
Q2: What's your MOQ?
A2: One Set.
Q3: How is the delivery time?
A3: It depends your order quantity and it normally takes about 15-20 days.
Q4: How do you control the quality?
A4: We have QC team comply with TQM to ensure the quality. Each step is in compliance to the standards. At the same time, we will take photos and shoot video for you if you need.Every product will be fully assembled and carefully tested before packing and shipping.
Q5: How long is the warranty?
A5: Within one year from the sale date, if there are any accessory problems, you just provide the photos of damaged accessory, then we will provide free accessory. According to the number of products, we will provide easily damaged accessories for free. We also can provide technical support if you need.
Audited Supplier 
){kind=link}
){kind=link}