
High Voltage Fast Response Overhead Vacuum Circuit Breaker
Indoor AC high voltage vacuum circuit breaker hereinafter referred to as a circuit breaker is a three-phase AC rated voltage indoor switchgear, which can be used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and substations, and is...
Description
We need to add value to our Gck Type Low Pressure Switch Cabinet, Electrical Power Transformer, hv ring main unit through technological innovation, thereby enhancing our competitiveness in the global market. We have become a model in the industry with our comprehensive strengths such as superb technology, excellent quality, honest service, and reasonable price. Over the years, our company has been persisting in the development concept of 'customer satisfaction as the focus' and gradually created and cultivated a professional and practical enterprise team. We strictly design every detail of the product and strive to humanize the product experience. Our purpose is: in the customer, for the customer. We provide customers with satisfactory service and products. Excellent quality, reasonable price and customer satisfaction are always pursued!
Indoor AC high voltage vacuum circuit breaker hereinafter referred to as a circuit breaker is a three-phase AC rated voltage indoor switchgear, which can be used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and substations, and is suitable for places with frequent operations.
The circuit breaker meets the standard requirements of "AC high voltage circuit breaker", 855-1996 "3.6-40.5kV indoor AC high voltage vacuum circuit breaker", DL403-91, "10-35KV indoor AC high voltage circuit breaker ordering technical requirements", and meets The relevant requirements of IEC56 (Publication 87).
The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, which can be used as a fixed installation unit or a dedicated propulsion mechanism to form a handcart unit.
It is an indoor switchgear with three-phase AC 50Hz rated voltage of 12KV power system. It is used as protection and control unit for power equipment and industrial and mining enterprises. Applicable to places that require frequent operation at rated operating current, or multiple times to break short-circuit current.
The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, and can be used as a fixed installation unit, or can be equipped with a special propulsion mechanism to form a hand truck unit.
Features: small size, light weight, suitable for frequent operation
Main structure: vacuum interrupter, electromagnetic or spring operating mechanism, bracket and other components.
Conditions of use:
The ambient temperature is not higher than +40℃, not lower than -15℃ (storage and transportation allowed at -30℃);
The altitude does not exceed 1000m;
Relative temperature: the daily average value is not more than 95%, the monthly average value is not more than 90%, the daily average value of saturated vapor pressure is not more than 2.2×10Mpa, and the average value is not more than 1.8×10 MPa;
The earthquake heat does not exceed 8 degrees;
There is no place with fire, explosion hazard, serious pollution, chemical corrosion and severe vibration.
The main technical parameters:
NO | Item | Units | Technical parameters | ||
1 | Rated voltage | KV | 12 | ||
2 | Rated short-duration power frequency withstand voltage | 42/48(Interphase, ground/fracture) | |||
3 | Rated lightning impulse withstand voltage | 42/48(Interphase, ground/fracture) | |||
4 | Rated frequency | Hz | 50 | ||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 630 1250 1600 2000 2500 3150 |
6 | Rated short-circuit breaking current | KA | 20/25 | 31.5 | 40 |
7 | Rated short-time withstand voltage | 20/25 | 31.5 | 40 | |
8 | Rated short circuit duration | S | 4 | ||
9 | Rated peak withstand current | KA | 50/63 | 80 | 100 |
10 | Rated short circuit closing current | 50/63 | 80 | 100 | |
11 | Secondary circuit power frequency withstand voltage (1min) |
2000 | |||
12 | Rated single / back to back capacitor group breaking current | A | 630/400(40kA:800/400) | ||
13 | Rated capacitor bank closing current | 12.5 (frequency is not greater than) | |||
14 | Mechanical life | KA | 20000 | ||
15 | Rated current breaking times (electrical life) | 20000 | |||
16 | Rated short circuit current breaking times | times | 50(40KA≤30) | ||
17 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||
18 | Energy storage time | s | ≤10 | ||
19 | Contact opening distance | mm
| 11±1 | ||
20 | Overtravel | 3.5±0.5 | |||
21 | Contact closing bounce time | ms
| ≤2(40KA≤3) | ||
22 | Three-phase split/closed period | ≤2 | |||
23 | Average opening speed (contacts are separated by -8mm) | m/s
| 1.2±0.2 | ||
24 | Main conductive loop resistance | 0.6±0.2 | |||
25 | Main conductive loop resistance | μΩ | ≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more) | ||
26 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||
Fields of application:
The following is a list of SM6 range units used in medium/low voltage substations and industrial distribution substations:
Cable control and protection
Overhead control and protection
Transformers and distribution substations
Motor and transformer control and protection
Generator control and protection
Control and protection of capacitor bank
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FAQ:
Q1: If I am interested in your products, when can I receive your quotation and detailed information after sending the inquiry?
A: All your queries will be answered within 24 hours.
Q2: Because I cannot confirm the quality of your products, can I get samples before ordering?
A: Of course! We also believe that sample ordering is the best way to build trust. In our company, we provide sample service! Please send inquiries to us and get samples!
Q3: Do you have a catalog? Can you send me a catalog to check all your products?
A: Yes, we have a product catalog. Please contact us online or send an email to send the catalog.
Q4: I need a price list of all your products. Do you have a price list?
A: We do not have a price list for all products. Because we have a lot of products, it is impossible to mark all prices on the list. Due to production costs, prices are always changing. If you want to check any prices of our products, please feel free to contact us. We will send you a quote as soon as possible!
This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings
Here are our customer examples for your reference
IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US
Purchaser need is our God for High Voltage Fast Response Overhead Vacuum Circuit Breaker. In order to meet the growing market demand, our company has established a sound quality management system, strictly control all aspects of production, and constantly improve product quality. Our company's internal management focuses on the effective development and rational use of human resources.
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