Product Description
Product Description
Specifications
AC HV Disconnect Switch
1. Rated Voltage: 12kV
2. Three-Phase AC 50/60Hz
AC HV Disconnect Switch
• Summary:
1. The GN30-12(D) disconnect switch is a robust indoor electric apparatus designed for a rated voltage of 12kV and operates on a three-phase AC system of 50/60Hz.
2. This switch is specifically engineered to efficiently make, break, and transfer currents for high-voltage electrical apparatus under conditions where voltage is present but load is absent, ensuring optimal performance and safety.
3. Featuring a rotary moving contact, this switch is adeptly mounted on switchgear, facilitating smooth and reliable operations with ease.
4. Additionally, it incorporates a wall-through installation, enhancing its versatility and application in various scenarios.
In the realm of electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, plays a pivotal role in assuring the complete de-energization of electrical circuits for maintenance or service. Primarily used to interrupt circuits for safety, these devices are indispensable in electrical distribution and substations, where machinery must be de-powered for adjustments or repairs. Disconnectors can be either manually or motor-operated, and are often coupled with an earthing switch to ground the isolated section, thereby ensuring the utmost safety for equipment and personnel. High-voltage isolation switches are integral in substations for isolating critical apparatus like circuit breakers, transformers, and transmission lines during maintenance. While disconnectors are not designed for regular circuit control, they are indispensable for safety isolation. Unlike load switches and circuit breakers, they lack arc suppression capabilities, making them ideal off-load devices with minimal breaking capacity, intended for operation only after current interruption by another control device.
Product Parameters
| Technical parameter |
|
|
|
|
| Model |
Rated voltage (kV) |
Rated current |
Rated short-time withstand current |
Rated peak withstand current |
| (A) |
(kA/4s) |
(kA) |
| GN19-12/400-12.5 |
12 |
400 |
12.5 |
31.5 |
| GN19-12/630-20 |
12 |
630 |
20 |
50 |
| GN19-12/1000-31.5 |
12 |
1000 |
31.5 |
80 |
| GN19-12/1250-31.5 |
12 |
1250 |
31.5 |
80 |
| GN19-12C/400-12.5 |
12 |
400 |
12.5 |
31.5 |
| GN19-12C/630-20 |
12 |
630 |
20 |
50 |
| GN19-12C/1000-31.5 |
12 |
1000 |
31.5 |
80 |
| GN19-12C/1250-31.5 |
12 |
1250 |
31.5 |
80 |
| PARAMETERS |
|
|
|
| No. |
ITEM |
UNIT |
VALUE |
| 1 |
Rated voltage |
KV |
12/40.5 |
| 2 |
Rated frequency |
HZ |
50 |
| 3 |
Rated current |
A |
630/1250 |
| 4 |
Rated breaking current for rated active load |
A |
630/1250 |
| 5 |
Rated closing current |
A |
630/1250 |
| 6 |
5% rated breaking current for rated active load |
A |
62.5 |
| 7 |
Rated cable charging breaking current |
A |
25 |
| 8 |
1 min Power frequency withstand voltage: vacuum interrupter, same relative to ground, isolated interrupter |
KV |
42/68/95/110 |
| 9 |
Lightning impulse withstand voltage: phase-to-phase relative to ground/isolated interrupter |
KV |
75/125/185/215 |
| 10 |
Rated short-time withstand current (thermal stability) |
KA |
25 |
| 11 |
Rated short-circuit duration |
5 |
4 |
| 12 |
Rated peak withstand current (dynamic stability) |
KA |
63 |
| 13 |
Rated short-circuit closing current |
KA |
63 |
| 14 |
Mechanical life |
|
10000 |
| 15 |
Allowable wear thickness of vacuum arc-extinguishing chamber contact |
mm |
0.6 |
| 16 |
Manual operating torque |
Nm |
≤300 |
Company Profile
Zhejiang Chaotai Complete Equipment Co., Ltd. stands at the forefront of electrical integration as a distinguished high-tech enterprise. Boasting a professional team dedicated to R&D, production, and service, we draw upon over 15 years of rich industry experience.
Our product portfolio spans high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our solutions are pervasively utilized across diverse sectors, including energy, chemical industries, metal smelting, power grids, industrial manufacturing, academic and research institutions, medical and pharmaceutical fields, municipal commerce, water management, transportation, as well as residential and commercial spaces.
Committed to the philosophy of 'smart manufacturing' and relentless innovation, we actively recruit top-tier technical talent to cement our standing as an industry leader. With a legacy of evolving from the ground up, our company is on a progressive trajectory towards excellence. Our modern business ethos revolves around quality, reputation, and efficient management. We are devoted to enhancing our market competitiveness, delivering unparalleled service to the transmission and distribution sectors within China’s electric power and grid networks. Upholding integrity, prioritizing quality, and ensuring service excellence, customer satisfaction is our enduring commitment. Pursuing excellence and fostering innovation, we are dedicated to establishing a trustworthy brand. Your recognition fuels our journey. We extend our heartfelt gratitude to all our valued customers for their unwavering support and trust. At Senhang Technology, we are eager to collaborate and forge a brighter future together.
Our Advantages
After Sales Service
Packaging & Shipping
FAQ
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
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