Basic Info.
Certification
CCC, ISO9001, ISO14001, ISO45001, CQC, CE, UL, Kema
Shell Material
Steel Plate
Voltage Level
Medium Voltage
Switchgear Type
AIS, Gis, Circuit Breakers, Ring Main Units (Rmu)
Electrical Control Switchgear
Metal-Enclosed, Drawout/Withdrawable Switchgear
Standard
IEC60298, GB/T3906, GB/T11022
Switch Cabinet Type
Indoor Sf6 Extensible Ring Main Unit
Switchgear Electrical
Electrical Switchgear Power Systems
Rated Primary Voltage
Medium Voltage Cabinet 12, 36, 40.5 or Customized
Secondary Voltage
10kv, 800V, 400V, 415V, 400V
Insulation Class/Protection Type
IP4X or Customized
Main Parts
Electrical Disconnect Switches, Circuit Breakers
Customized Electric Switchgear
China Manufacturer Factory Supplier Vendor
Hot Selling Transformer
Single Phase, Pole Mounted, Voltage Step up Down
Top 10 Popular Products
Oil Immersed Dry Type Transformer, Substation
Trademark
Qinghaobiandian
Transport Package
Wooden Case or Pallet or Customized
Specification
12, 24, 33, 40.5 kv
Product Description
Product Description
Switchgear is a combination of electrical disconnect switches, circuit breakers, fuses, and other protective devices that are used to control, protect, and isolate electrical equipment in a power system. These devices are typically installed together in a metal enclosure or cabinet, forming a switchgear assembly. It ensures the safety of an electrical system by facilitating the safe operation, maintenance, and protection of the electrical network. It enables operators to de-energize specific parts of the system for maintenance or repair work, as well as to clear faults by automatically interrupting the flow of electricity when abnormal conditions like short circuits or overloads occur.
Qinghao Electric is developing and producing a variety series switchgear, which can be classified into different types based on various factors such as voltage level (LV--below 1000V, MV--up to 35kV, HV--above 35kV), installation location (indoor or outdoor), and the type of technology used (like air-insulated, gas-insulated, or oil-insulated). Main types include: KYN, XGN, HXGN, XGW, DFW, GGD, GCK, GBD, PGL MNS and so on.
Reliable, rapid deployment, cost-effective, safe and easy operation.
Main Characteristics
1. Voltage and Current Ratings: Switchgear is handling specific voltage and current levels based on the electrical system they are installed in.
2. Interrupting Capacity: This refers to the ability of a circuit breaker or switch to safely interrupt the flow of fault currents.
3. Isolation Capability: Switchgear allows for safe isolation of electrical circuits for maintenance or repair work.
4. Protection Features: Built-in protection mechanisms like overcurrent, undervoltage, and earth fault protection relays to automatically disconnect faulty parts of the system.
5. Arc Interruption: In the event of a fault, switchgear is able to safely extinguish the electric arc that forms when breaking a circuit under load.
6. Control and Monitoring: Advanced switchgear may have integrated control and monitoring systems.
Advantages
1. Protection of equipment.
2. Reliable and safe.
3. Easy to operate and free maintenance.
Applications
1. Power generation plants.
2. Electricity transmission and distribution networks.
3. Industrial facilities: factories, mines, and large commercial buildings.
4. Renewable energy systems: solar farms, wind turbines, and other renewable energy installations.
5. Transportation infrastructure: railways, airports, and seaports.
Service Environment
1. Ambient temperature: Maximum +40ºC, Minimum -25ºC
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
Please check below quick links for other product types.
Control Transformer | Oil Immersed Transformer | Dry Type Transformer |
Substation Transformer | Switchgear | Distribution Cabinet |
Product Parameters
The rated voltage can be customized as customers' requirements. For instant communication, please click here. No | Item | Unit | LV Parameter | MV Parameter |
1 | Rated voltage | kV | 7.2kV, 12kV, 17.5kV, 24kV | 36kV, 40.5kV |
2 | Rated frequency | Hz | 50/60 | 50/60 |
3 | Rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 | 630, 1250, 1600, 2000, 2500, 3150, 4000 |
4 | 1 min power frequency withstand voltage(wet/dry) | kV | 38/48, 50/60, 60/65 | 70/95 |
5 | Lightning impulse withstand voltage | kV | 75/95/125 | 170/185 |
6 | Rated short circuit breaking current(peak) | kA | 40/50/63/80/100 | 20/25/31.5/40 |
7 | Short time withstand current(4s) | kA | 20/25/31.5/40 | 40/50/63/100 |
8 | Protection type | | IP4X for housing | IP4X for housing |
Detailed Photos
Main Components:- Circuit Breakers: To interrupt the flow of electricity in a circuit during faults or for switching operations. Eg. SF6, vacuum, oil, or air blast type.
- Disconnectors / Isolators: To isolate a part of the electrical circuit from the rest when no load is present.
- Earthing Switches / Grounding Switches: These are used to connect a circuit or equipment to the earth, ensuring safety during maintenance work.
- Control and Instrumentation Panel: This includes devices for controlling, monitoring, and indicating the status of the switchgear and its components.
- Housing / Enclosure: Enclosed in a metal cabinet or compartment to protect against environmental factors, ensure operator safety, and prevent unauthorized access.
- Fuses, protective relays, busbars, interlocks, arc-extinction systems etc.
Packaging & Shipping
Company Profile
Qinghao Transformer is a reliable and specialized power transmission and distribution equipment manufacturer for over 20 years with a registered capital of USD8,000,000.
Except for ISO9001, ISO14001, ISO45001 certificates, we are also TUV audited suppliers with AAA enterprise and AAA products honors. All products comply with GB and IEC related standards, which mainly include oil immersed distribution transformer, dry-type transformer, amorphous alloy transformers, combined transformer substations, circuit breaker, cable branch box, high low voltage switchgear cabinet distribution equipment.
With the concept of "World-class transformers, smart solutions", Qinghao Transformer is devoting to provide high-quality power for customers.
Let us cooperate with a brighter future!
FAQ
Q: Are you a Manufacturer or Trading company?
A: We are the original factory with approved export license.
Q: What's your warranty terms?
A: We offer 24 months warranty time.
Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.
Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.
Q: How can I trust you?
A: We are TUV aduited supplier with many patent certificates, type test reports, CQC, CE, KEMA, ISO certificates. We can provide on site services for many areas like South America, Indonesia, etc.
Certificates
Business Partners
Address:
No.381, Jingqi Road, Economic Development Zone, Yueqing City, Wenzhou, Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company, Group Corporation
Business Range:
Construction & Decoration, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Lights & Lighting, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Security & Protection, Tools & Hardware, Transportation
Management System Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001
Company Introduction:
Qinghao Electric Co., Ltd. (Hereinafter referred to as Qinghao Electric) is a reliable and specialized power transmission and distribution equipment manufacturer located in Wenzhou City, Zhejiang Province and now expanded with the subsidiaries of "Qinghao Electric (Guangzhou) Co., Ltd. " and "Qinghao Transformer Co., Ltd. " based in Guangdong and Jiangxi provinces.
Qinghao Electric is focusing on transformer, substation, switchgear and other power related products′ R&D and manufacture from 2010 with the registered capital of USD8, 000, 000 (Eight Million Dollars). We have got the certificates of ISO9001, ISO14001 and OHSAS18000, and honored to be AAA Enterprise.
Qingao Electric′s main products include high voltage power transformer, oil immersed distribution transformer, dry type transformer, amorphous alloy transformer, box type substation, pre-installed substation, high and low voltage switchgear, and cable distribution boxes. With more than 20years develop and production efforts, our products′ technical performance has reached the advanced level in power industry. We are a leading professional power distribution manufacturer not only in China but also in the world. The sales have covered all regions of China, and exported to the Middle East, Southeast Asia, Africa, South America, Europe, the United States and other countries.
With the concept of "world-class transformers, smart solutions", Qinghao Electric is devoting to provide safe, high efficient, energy saving product and thoughtful service to ensure one-stop power transmission & distribution smart solutions for customers.