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.

 

 
  • HV Switchgear
    Rated Voltage:10KV 35KV
    Rated Current:630A 1250A 2000A
    Rated Short-Circuit Withstand Capacity:25kA 31.5kA 40kA
    Protection Level:IP44 IP54 IP65
    Insulation...
    view more
  • General Electric Low Voltage Switchgear
    General 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...
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  • Intelligent Low-voltage Main Distribution Switchgear
    Voltage Class: Low Voltage
    Protection Degree: IP30 – IP67
    Structure: Modular & Metal-enclosed
    Application Scope: Industrial & Commercial Power Distribution
    view more
  • High Quality Medium Voltage Switchgear
    Product 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...
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  • Substation Switchgear-Power Control Core Equipment
    This 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...
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  • High Quality Low Voltage Switchgear
    Details:
    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...
    view more
  • Gas Insulated Switchgear
    Rated Voltage:10KV 35KV 66KV
    Rated Current:630A 1250A 2000A
    Rated Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
    Insulation Medium:SF₆ Gas/Dry Air
    Protection Level:IP54...
    view more
  • Assembled Switchgear
    Rated Voltage: HV 10kV/35kV/66kV; LV 400V/6.3kV/10kV
    Rated Current: 630A/1250A/2000A/3150A
    Short-Circuit Breaking Capacity: 25kA/31.5kA/40kA
    Protection Level:...
    view more
  • HV and LV Switchgear
    Rated HV:10KV 35KV 66KV
    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...
    view more
  • Substation Switchgear
    Rated Voltage:10kV 35kV 110kV
    Rated Current:630A 1250A 2000A 3150A
    Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
    Protection Level:IP44 IP54
    Connection Scheme:Single...
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  • Gas Insulated Medium Voltage Switchgear
    Rated Voltage:10KV 20KV 35KV
    Rated Current:630A 1250A 2000A
    Rated Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
    Insulation Medium:SF6 Gas/Dry Air
    Protection Level:IP54...
    view more
  • High Voltage Withdrawable Switchgear
    Rated Voltage:10kV 35kV
    Rated Current:630A 1250A 2000A 3150A
    Short-Circuit Breaking Capacity:25kA 31.5kA 40kA
    Protection Level:IP44 IP54
    Connection Scheme:Single...
    view more
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Product Specifications

Project

Unit

Parameter

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

 

Electrical Switchgear

 

Features and benefits of switchgear

☆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
 
01/

Ambient Temperature: -5℃~+40℃;

02/

Altitude: No more than 2000m;

03/

Relative humidity: Daily average ≤95%, monthly average ≤90%;

04/

Earthquake intensity: No more than 8 degrees;

05/

Installation place: Indoor places without corrosion, violent vibration and impact;

06/

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

 

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FAQ

 

Q: What are your payment terms?

A: We accept multiple payment methods. The standard term is 30% T/T as a deposit, and 70% balance before shipment. We also welcome Western Union and Letter of Credit (L/C) for your convenience.

Q: What is the lead time for delivery?

A: The typical delivery time is approximately 15 to 20 days.

Q: How do you resolve quality-related issues?

A: Please provide detailed photos of the quality problems. Our technical and quality testing department will conduct a thorough analysis and provide a satisfactory solution within 2 business days.

Q: May I know the warranty period?

A: The warranty period is within 12 months from the date of the bill of lading.

Q: Do you accept product customization?

A: Yes, of course. Please provide specific drawings or parameters, and we will provide a quotation for you after evaluation.

Q: Can you make our design and put our logo on the products?

A: Yes, we can customize products according to your design and apply your logo to the products.

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
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