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 represents a pinnacle of indoor electric apparatus engineering, designed for a rated voltage of 12kV and adaptable to three-phase AC 50/60Hz systems.
2. This advanced switch is tailored to manage make, break, and transfer operations for high-voltage electric apparatus in scenarios where voltage is present, yet under no-load conditions.
3. A standout feature of this switch is its rotary moving contact, meticulously engineered to be mounted effortlessly on the switchgear.
4. Additionally, it features an innovative wall-through installation method, enhancing versatility and ease of integration.
In the realm of electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, is an essential component designed to ensure the complete de-energization of an electrical circuit for service or maintenance. These devices are crucial for breaking circuits and are predominantly utilized in electrical distribution and substations, where it is imperative to remove machinery from its power source for adjustments or repairs. Disconnectors can be manual or motor operated and are often accompanied by an earthing switch to safely ground the isolated section of the system, safeguarding 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 for maintenance purposes. It is important to note that disconnectors are primarily intended for safety isolation rather than routine control of the circuit. Unlike load switches and circuit breakers, disconnectors do not possess a mechanism for electric arc suppression, which occurs during the interruption of high currents. Consequently, they are classified as off-load devices with minimal breaking capacity, intended for opening 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. is a pioneering high-tech enterprise specializing in the dynamic and ever-evolving field of electrical integration. With an expert team dedicated to research, development, production, and service excellence, we proudly bring over 15 years of rich industry experience to our clientele.
Our esteemed product lineup encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and sophisticated substations. These products serve a diverse range of sectors, including energy, chemical, metal smelting, electric power grids, industrial manufacturing, educational institutions, medical and pharmaceutical industries, municipal commerce, water conservancy and hydropower, road traffic systems, as well as commercial and residential projects, underscoring our versatile applications.
At Zhejiang Chaotai, we embrace a philosophy of 'smart manufacturing' through relentless technological innovation. By attracting top-tier technical talents, we amplify our core competitiveness, delivering unmatched value to our customers and aspiring to establish an industry-leading brand. From our inception, we have transformed from a mere concept into a beacon of excellence. Our commitment to innovation and modern business practices such as achieving quality-driven survival, market-centric growth, reputation-based development, and management-enhanced efficiency remains steadfast. We prioritize 'technology as the beacon, standardized management, impeccable quality, and ultimate customer satisfaction' in managing quality and technical expertise. This enhances our market standing as we ambitiously serve China's electric power and grid sectors with unparalleled speed, strength, and elevated objectives. Integrity is our cornerstone, quality is our hallmark, service is our creed, and customer satisfaction is our eternal pledge. Driven by a quest for excellence and unrelenting innovation, we strive to build a brand synonymous with trust. Your support is our inspiration; we extend heartfelt gratitude to all our loyal and new clients. Zhejiang Chaotai Complete Equipment looks forward to forging a brighter future together with you.
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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