Your Professional Switchgear Supplier
KECHANG Electric Co., Ltd. is located in Baoding,Hebei Province, China's Electric Valley,with 20 years of experience in the electrical professional industry manufacturing, research and development, design, manufacturing, sales in one of the industrial and trade enterprises, is committed to providing customers around the world with durable electrical equipment, a professional manufacturer.
Why choose us
Certifications
Our products have passed CE,ISO9001, ISO14001,ISO45001 and many other certifications.
Sales Markets
These products are highly sought after for their energy efficiency and durability, and are exported to Central Asia, Southeast Asia, the Middle East, South Africa, South America, and Europe.
Our Services
We provide a full range of service support, including pre-sales consultation, technical support and after-sales service.
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HV SwitchgearRated Voltage:10KV 35KVview more
Rated Current:630A 1250A 2000A
Rated Short-Circuit Withstand Capacity:25kA 31.5kA 40kA
Protection Level:IP44 IP54 IP65
Insulation... -
General Electric Low Voltage SwitchgearGeneral Electric Low Voltage Switchgear: the cornerstone of industrial Power security In the modern industrial system, a stable and reliable power supply is the lifeline of production. General...view more
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Intelligent Low-voltage Main Distribution SwitchgearVoltage Class: Low Voltageview more
Protection Degree: IP30 – IP67
Structure: Modular & Metal-enclosed
Application Scope: Industrial & Commercial Power Distribution -
High Quality Medium Voltage SwitchgearProduct introduction In the power system, the Medium voltage switchgear (Medium Voltage switchgear) is the key hub connecting high-voltage transmission and low-voltage power distribution, and is...view more
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Substation Switchgear-Power Control Core EquipmentThis article focuses on the technical points of substation switchgear, a basic power system equipment integrating circuit breakers, isolation switches and other core components to realize circuit...view more
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High Quality Low Voltage SwitchgearDetails:view more
Rated Voltage:10KV 35KV 66KV
Rated Current:630A 1250A 2000A
Rated Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
Insulation Medium:SF6 Gas/Clean Air
Protection... -
Gas Insulated SwitchgearRated Voltage:10KV 35KV 66KVview more
Rated Current:630A 1250A 2000A
Rated Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
Insulation Medium:SF₆ Gas/Dry Air
Protection Level:IP54... -
Assembled SwitchgearRated Voltage: HV 10kV/35kV/66kV; LV 400V/6.3kV/10kVview more
Rated Current: 630A/1250A/2000A/3150A
Short-Circuit Breaking Capacity: 25kA/31.5kA/40kA
Protection Level:... -
HV and LV SwitchgearRated HV:10KV 35KV 66KVview more
Rated LV:400V 6.3KV 10KV
Rated Current:630A 1250A 2000A 3150A
Rated Short-Circuit Withstand Capacity:25kA 31.5kA 40kA
Protection Level:IP44 IP54... -
Substation SwitchgearRated Voltage:10kV 35kV 110kVview more
Rated Current:630A 1250A 2000A 3150A
Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
Protection Level:IP44 IP54
Connection Scheme:Single... -
Gas Insulated Medium Voltage SwitchgearRated Voltage:10KV 20KV 35KVview more
Rated Current:630A 1250A 2000A
Rated Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
Insulation Medium:SF6 Gas/Dry Air
Protection Level:IP54... -
High Voltage Withdrawable SwitchgearRated Voltage:10kV 35kVview more
Rated Current:630A 1250A 2000A 3150A
Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
Protection Level:IP44 IP54
Connection Scheme:Single...
Product Specifications
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Project |
Unit |
Parameter |
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Rated voltage |
V |
AC400 AC690 DC750 |
|
|
Rated frequency |
HZ |
50 |
|
|
Rate insulation voltage |
V |
AC1000 DC1500 |
|
|
Rated impact voltage resistance |
KV |
8 |
|
|
Main bus |
Rated current |
A |
Up to 5000 |
|
Rated peak withstand current(1s) |
KA |
105,176,220 |
|
|
Rated short time withstand current (1s) |
KA |
50,80,100 |
|
|
Gounding system |
TT,IT,TN-S,TN-C-S |
||
|
Protection level of cabinet |
IP30,IP40,IP54 |
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☆Boosts reliability
Switchgear ensures undisturbed interconnectivity and a higher capacity of generating stations. It enhances reliability as it separates faulty sections of the circuit in the case of malfunction.
☆Swift response
In the case of a malfunction in the circuit, the switchgear counters quickly to prevent the damage from spreading into the healthy parts. Thus, it helps in preventing a complete shutdown of the circuit.
☆Physical control facility
Switchgear also has the ability to offer hand-held operations in case of a fault of electrical control.
☆Absolute differentiation
Switchgear can alter between functioning and nonfunctioning parts in a circuit. Because of this, it can then separate the non functioning components to ensure an uncompromised power supply.
Classification of Switchgear
The switchgear can be classified into three categories:
☆Low voltage switchgear
☆Medium voltage switchgear
☆High voltage switchgear
Working Conditions
Ambient Temperature: -5℃~+40℃;
Altitude: No more than 2000m;
Relative humidity: Daily average ≤95%, monthly average ≤90%;
Earthquake intensity: No more than 8 degrees;
Installation place: Indoor places without corrosion, violent vibration and impact;
If the normal use conditions are exceeded, the user shall negotiate with the company.
Components of Switchgear
Switchgear is constructed with diverse interconnecting components that vary depending on the specific application. Below are the main components involved in the switchgear system.
Circuit Breakers
Circuit breakers are essential for protecting electrical systems from overloads, short circuits, and faults. They work by interrupting the electrical current when a fault or overcurrent occurs. The primary function of circuit breakers is to ensure the safety and reliability of the entire electrical network.
Fault Interrupters
Fault interrupters are self-controlled mechanical devices that can make, carry, and switch continuous current. They can also detect and automatically interrupt fault currents without the ability to reclose automatically. These devices include a set of control elements that detect overcurrents and manage the fault interrupter.
Disconnect Switches
The primary function of disconnect switches is to allow for safe maintenance or repairs on isolated equipment. These switches work by physically disconnecting electrical equipment from the power supply, providing a crucial safety measure during maintenance activities.
Fuses
Fuses serve as protective devices that safeguard electrical circuits and equipment from overcurrent conditions. Their primary function is to interrupt the electrical current when it exceeds a predetermined level.
Relays
Relays serve as monitors and controllers of the electrical parameters within the system. Their critical role lies in the protection and automation of the switchgear system, ensuring a swift response to abnormal conditions and maintaining the overall integrity of the electrical network.
Control Panels
Control panels serve as the central command and monitoring hub for electrical circuits and equipment. They provide operators with the tools to manage and motor various functions. They consist of various control devices, indicating lamps, and monitoring equipment, essential for the operation and supervision of the switchgear.
Certificates




FAQ
As one of the leading switchgear manufacturers and suppliers in China, we warmly welcome you to wholesale cheap switchgear from our factory. All customized products are with high quality and competitive price.
Low Voltage Switchgear, Medium Voltage Switchgear, Substation Switchgear