GCS box type fixed metal closed ring network switchgear (referred to as ring network cabinet) is a new type of high voltage switchgear produced for urban power grid reconstruction and construction needs. It is also used as the starting load current and short-circuit current in the power supply system. The ring network cabinet is suitable for AC 12KV, 50/60HZ power distribution system, and is widely used in urban power grid construction and renovation projects, industrial and mining enterprises, high-rise buildings and public facilities. As a ring network power supply unit and terminal equipment, the distribution of power, control and protection of electrical equipment can also be installed in box-type substations.
The ring network cabinet complies with the relevant regulations of IEC420 and GB3909.
The ring network power supply generally consists of three basic units, and the incoming and outgoing line cabinets serve as ring network units. When any line fails, it can be isolated in time, and another unit ensures that the user's transformer branch is continuously powered. The user loop ring network cabinet protects and isolates the transformer, facilitating maintenance and repair.
The ring network cabinet can be arbitrarily extended, and various combinations can be formed by the basic unit according to user requirements.
Conditions of use
- For indoor use, the elevation of the service point shall not exceed 2,000m.
- The ambient air temperature is no higher than 40°C and no lower than -5°C. The average temperature should not be higher than 35°C within 24 hours. When exceeding, the capacity should be reduced according to the actual situation.
- The relative high temperature of the surrounding air is 40°C and does not exceed 50%. If 20°C is 90%, consideration should be given to the effect of occasional condensation caused by temperature changes.
- When the device is installed, the tilt with the vertical plane shall not exceed 5°, and the whole set of cabinets shall be relatively flat in line with the standard of gbj232-2.
- The device shall be installed in a place free from violent vibration and shock and where the electrical components are not sufficiently corroded for use.
Switchgear Structure
The Specification
| Item |
Parameter |
| Rated Insulation Voltage |
|
| Rated Working Voltage |
Primary Loop |
AC 660 (1000) V |
| AC 380 (660) V |
| Auxiliary Circuit |
AC 380, 220, 24 V |
| DC 220, 110 V |
| Rated Frequency |
50 (60) Hz |
| Rated Current of Horizontal Bus |
< 4000 A |
| Rated Current of Vertical Bus |
1000 A |
| Rated Peak Tolerant Current |
105 (176) KA |
| Rated Short-term Tolerant Current (1s) |
50 (80) KA |
| Power Frequency Testing Voltage |
Main Loop to The Ground |
2500 V/min |
| Auxiliary Circuit to The Ground |
2000 V/s |
| Protection Grade |
IP3x |
Our Workshop
Company introduction
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.
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.
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 
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