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 high-performing indoor electric apparatus with a rated voltage of 12kV, designed for three-phase AC 50/60Hz systems.
2. Engineered to facilitate the making, breaking, and transfer of current for high-voltage electric apparatus, it efficiently operates under conditions of voltage presence without load.
3. This switch utilizes a rotary moving contact system, smartly mounted on the switchgear for seamless integration and operation.
4. It also incorporates a wall-through installation, ensuring versatility and adaptability.
In the realm of electrical engineering, a disconnector, often termed as a disconnect switch or isolator switch, plays a pivotal role in ensuring that an electrical circuit is thoroughly de-energized for service or maintenance. Essential for circuit breaking, these devices are commonly installed in electrical distribution and substation settings where machinery must temporarily disconnect from its power source for adjustments or repairs. Disconnectors may be operated manually or via motors and can be paired with earthing switches to effectively ground the isolated segment, safeguarding both equipment and personnel. High-voltage isolation switches are paramount in substations, enabling the safe disconnection of apparatuses such as circuit breakers, transformers, and transmission lines for maintenance tasks. Not intended for routine circuit control, disconnectors prioritize safety isolation. Unlike load switches and circuit breakers, they do not suppress electric arcs upon the disconnection of high-current conductors, making them off-load devices with negligible breaking capacity, meant for activation post current interruption by other controlling mechanisms.
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 trailblazer in electrical integration, embodying over 15 years of cutting-edge expertise and innovation. Our esteemed team of professionals excels in research, development, production, and service, making us a hallmark of technological advancement.
Our expansive product catalog includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These high-caliber products are instrumental across a myriad of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water conservancy, road traffic, and both commercial and residential domains.
At Zhejiang Chaotai, innovation is our compass, driving us towards smart manufacturing and the relentless pursuit of excellence. By attracting top-tier technical talent, we fortify our core competencies, endeavoring to deliver unparalleled value and strive towards industry leadership. Since our inception, we have charted a remarkable course from inception to excellence, anchored by a modern business philosophy focused on quality, market orientation, and reputational growth. Committed to the tenets of technological guidance, standardized management, and superior quality, we aim to elevate our market competitiveness, particularly in China's electric power and grid transmission and distribution sectors. Our core values are integrity, quality, and customer satisfaction, with a steadfast focus on building a trustworthy brand through continuous innovation and excellence. We extend our heartfelt gratitude to our loyal clientele for their unwavering support, and we eagerly anticipate 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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