Product Specifications
| Prod Model: |
JN15-12Q (12GY) or 24Q/31.5-80 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Switch: |
3 Phases Electrical Earthing Switch for Switchgear |
| Certificate: |
ISO14001:2004 Standard |
| Used Place: |
Indoor |
| Installation: |
Plane Installation |
| Usage: |
Power |
| Material: |
Porcelain |
| Quality Warranty: |
18 Months |
Product Description
Product Name: High-voltage AC Disconnecting and Earthing Switches
1. Application
1) For the disconnecting switches, they are a key component of metal enclosed switchgear. These switches are suitable for service in a 12kV 50Hz AC 3-phase power system.
2) For the earthing switches, they can be accompanied with varieties of high voltage switchgears and used for earthing while maintenance of high voltage equipment.
2. Technical parameters
1). Rated Voltage: Up to 12 kV
2). Rated Current: Up to 4000A
3). Thermal Current for 4s (r. M. S): Up to 40 kA
4). Dynamic Current (peak): Up to 125kA
5). Rated Frequency: 50Hz
6). Material: Porcelain
*Except for the parameters listed above, we can design as per clients' requirements.
3. Main features
1) For the disconnecting switches:
A. Every phase conductive body for an isolating switch of series GN19-12Q is fixed on a bottom seat by two post insulators. (There are C1, C2 and C3 three gone-thru types for GN19-12C isolating switch, C1, C2-a post insulator and a bushing at one side respectively; C3-two sides are all bushings). The conductive body for every phase is composed of a contacting knife and a stationary contact. At the mid of every contacting knife is connected with a pull rod insulator that is connected with a main shaft mounted on a bottom frame by a connecting rod. The main shaft is connected to CS6-1T operating mechanism by a crank arm and connecting rod. The mechanism is connected to the isolating switch by a connecting rod supplied by customers to make the relative movement of the mechanism and the switch.
2) For the earthing switches:
A. Consisting of a bracket, a contacting knife, insulators, a closing spring and contacting seat.
B. When the process of closing, an action torque coming from the operating mechanism makes the main shaft 6 overcome a resistance torque and rotate the operating plate 4 at the direction of closing, and make a swing rod on the mobile knife 1 run over the spring dead center, and the spring releases energy to make the earthing switch accelerate closing. The tight and reliable contacting by butterfly spring 5 on the mobile knife 1 of the knife of the stationary contact 3 and contacting knife reaches the earthing demand. While opening, an action torque makes the main shaft 6 overcome a resistance torque and spring force, rotate the operating plate 4 at the opening direction, and make the swing rod on the mobile knife 1 compress the spring 2 to the dead center, and the energy storage ends for next closing.
4. Production Capability: 3000 pieces per year
5. Minimum Order: 3 pieces
6. Delivery Time: 5-15 days
7. Manufacturing standards: IEC62271-102: 2002, GB1985-2004
Product Name: Trucks for Switchgears
1. Application
The truck is mid-set mounted in the switchgears. It is composed of a primary terminal extending current transformer and a voltage transformer fuse enclosed. Our trucks are one type of patent products in our company.
2. Technical Parameters
1). System Nominal Voltage: Up to 12kV
2). Rated Operating Voltage: Up to 10kV
3). Rated Frequency: 50Hz
4). Rated Primary Current: Up to 1600 A
5). Rated Secondary Current: 5A
6). Rated Secondary Voltage: 0.1kV
7). Accuracy class up to 0.2 for metering; Up to 10P for protection
*Except for the technical data listed above, we can design as per clients' requirements.
3. Main Features
1). Excellent in insulation performance
2). Low partial discharge, high accuracy
3). With compact and reasonable structure
4). Enabling the structure of switchgear much more compact
5). Be able to improve the electrical and mechanical performance of the switchgears
6). High resistance to uncleanness and moisture
7). Epoxy resin insulated
4. Production Capability: 10, 000 pieces per year
5. Minimum Order: 1piece
6. Delivery Time: 4-15 days
7. Manufacturing Standards: GB1207-2006, GB1208-2006, Q/SH005-2004
Rated Voltage
(kV) |
Operating Voltage
(kV) |
Thermal
Current for 4s (r.m.s.)
(kA) |
Dynamic Current
(Peak)
(kA) |
Current Closed (Peak) (kA) |
Rated Insulation Level
(kV) |
Closing Velocity
(m/s) |
Contacting Resistance for Primary Circuit
(μΩ) |
|
12 |
10 |
31.5 |
80 |
80 |
42/75 |
≥6 |
<60 |
|
12 |
10 |
31.5 |
80 |
80 |
60/125 |
≥6 |
<60 |
As a national Hi-New-Tech enterprise, Guangdong Sihui Instrument Transformer Works Co., Ltd. is professional in designing, manufacturing and selling instrument transformers, dry-type power transformers and insulating articles etc. Our products sell well in more than 20 provinces, cities and autonomous regions of China as well as Europe, America, Russia and Southeast Asia and the like. Plateau-type instrument transformers have been applied in Jiuquan Satellite Shoot Centre Power Supply System, which has contributed to the successful launching for Spaceship Shenzhou V, Shenzhou VI and Shenzhou VII.
"Instrument Transformer" and "Dry-type Power Transformer" with Sihu Brand have been awarded the title of "Guangdong Provincial Top Brand", and Sihu trademark has been authorized to be Guangdong Provincial Famous Trademark.
Provincial Enterprise Technology Centre and Guangdong Provincial High-Voltage and High-Capacity Sensors Engineering Technology Research and Development Centre have been established by our company and affirmed. Since 2003, we have developed new technologies and new products more than 80 and have gained decades of national patents, of which, 4 invention patents and 17 key technical products with self brand. What' s more, we have gained 28 national honors such as China Outstanding Private Science & Technology Enterprise Invention Prize and Contribution Prize etc, and 38 provincial honors such as Guangdong Provincial Self Innovation Model Enterprise etc in 2009.
Our company took the lead in passing ISO 9001/ISO 14001/OHSAS 18001 Quality, Environmental and Occupational Health and Safety Management Systems certification, Russia GOST certification, China Environmental Symbol Products and Guangdong Provincial Energy Saving Symbol Products in the same industry. Top brand strategy and self-brand export strategy have been carried out actively to be geared to international standards and to be advanced. Our technological economic index is top or advanced level in the same industry of China, which contributes to local economy.
