12kv 630A 25ka Indoor Draw out Type 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 have always insisted on selecting high-quality raw materials and advanced processing techniques to reduce energy consumption and improve the efficiency of the Outdoor Prefabricated Compact Substation, SF6 insulated switch cabinet, 2500 KVA 10KV Power Distribution Transformer. Relentless pursuit of perfection in product quality management and marketing service system construction has made our company larger and stronger. We cordially welcome shoppers from in the home and overseas to hitch us and cooperate with us to enjoy a better future. We always adhere to the philosophy of customer-centric and social-oriented, and continue to pay attention to customer needs.
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
PRODUCT PHOTO
FACTORY
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
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We create differences and meet the special needs of customers with innovation, and strive to increase the added value of corporate culture innovation in our 12kv 630A 25ka Indoor Draw out Type Vacuum Circuit Breaker. On the basis of introducing and digesting advanced technology, we will independently research and develop and constantly innovate and forge ahead. Our goal is 'blazing new ground, Passing Value', in the potential, we sincerely invite you to mature up with us and create a vivid foreseeable future jointly!
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