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 sophisticated indoor electrical apparatus designed for a rated voltage of 12kV, accommodating three-phase AC at 50/60Hz. Its robust construction ensures reliable performance.
2. This exceptional switch is engineered to facilitate the making, breaking, and transfer of current for high-voltage electrical apparatus under no-load conditions, ensuring seamless operations.
3. The switch features an innovative rotary moving contact, strategically mounted on the switchgear for easy and efficient maneuverability, enhancing operational convenience.
4. It also utilizes a wall-through installation method, offering flexibility and ease of integration into various setups, ensuring adaptability across different configurations.
In the realm of electrical engineering, a disconnector, commonly known as a disconnect switch or isolator switch, plays a pivotal role in assuring that an electrical circuit is completely de-energized for service or maintenance purposes. These devices are primarily utilized to break the circuit and are frequently found in electrical distribution networks and substations, where machinery necessitates its power source be removed for precise adjustments or repairs. Disconnectors can be manually or motor-operated and may be paired with an earthing switch to ground the isolated section, ensuring the utmost safety for both equipment and personnel. High-voltage isolation switches are indispensable in electrical substations, facilitating the isolation of apparatus like circuit breakers, transformers, and transmission lines during maintenance. Intended primarily for safety isolation rather than routine circuit control, disconnectors differ from load switches and circuit breakers as they lack a mechanism for suppressing electric arcs, which arise when high-current conductors are interrupted electrically. As a result, they function as off-load devices with minimal breaking capacity, meant to be operated only after the current has been interrupted 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 as a beacon of high-tech innovation, deeply entrenched in the sphere of electrical integration. With a seasoned R&D, production, and service team, boasting over 15 years of industry expertise, we lead the charge in pioneering excellence.
Our diverse portfolio features an array of groundbreaking products including high-voltage solid-state soft starters, capacitor cabinets, both high and low voltage switchgear, gas-insulated switchgear, and substations. These innovations have found widespread application across numerous sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, road traffic systems, as well as commercial and residential areas, underscoring their versatility and reliability.
Embracing a philosophy of relentless technological innovation and "smart manufacturing," we are dedicated to infusing high-level technical talent into our operations to significantly bolster our core competencies. Our mission is to provide unparalleled service value to our clientele and cement our status as the premier brand in the industry. From inception, Zhejiang ChaoTai Complete Equipment Co., Ltd. has embarked on a transformative journey from humble beginnings to achieving excellence, propelled by a commitment to innovation. We adhere to a modern business ethos that prioritizes survival through quality, market orientation, growth via reputation, and efficiency through astute management. Our unwavering dedication to "technology-led guidance, standardized management, superior quality, and customer satisfaction" underpins our approach to quality and technical talent management, enhancing our market competitiveness. We aspire to propel the transmission and distribution sectors of China's electric power and grid towards faster, stronger, and loftier aspirations. Our bedrock principles are integrity, quality, supreme service, and unwavering customer satisfaction—values that drive us to pursue excellence, foster continuous innovation, and build a trusted brand. Your recognition fuels our journey. We extend heartfelt gratitude to our esteemed new and long-standing customers for their unwavering support and affection. Zhejiang ChaoTai Complete Equipment Co., Ltd. eagerly anticipates collaborating with you to forge a brighter future.
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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