China Switchgear Manufacturers, Suppliers and Factory - Switchgear Quotation

Your Leading Switchgear Supplier

Discover the strength behind power with Smurfs Power Limited, your reliable switchgear manufacturer for innovative electrical equipment and comprehensive power solutions. We manufacture and supply a wide range of electrical Equipment, including transformers, circuit breakers, switchgears, prefabricated substations, distribution boards, power cables, and accessories.

Why choose us?

Sales market

We establishing a stable global sales network that connects with businesses in dozens of countries，primarily to developed markets in europe, america, japan, and central & west asia.

Customized services

Our expertise in technology and quality control allows us to deliver high-quality, customized electrical equipment.

Professional services

Regardless of the size of your project, we are committed to providing the best solutions to ensure your electrical system is safe, reliable, and cost-effective.

SF6 Gas Insulated Ring Main Unit (RMU)
Ring Main Unit (RMU) is a set of high-voltage switchgear installed in a steel plate metal cabinet enclosure or constructed as a compartmentalized assembly ring main power supply unit. Its core
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Box-Type Fixed AC Metal-Enclosed Switchgear
The XGN2-12(Z) Box-Type Fixed AC Metal-Enclosed Switchgear is suitable for three-phase AC 50Hz systems with rated voltages of 3.6kV, 7.2kV, and 12kV. It is used for receiving and distributing
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Removable Metal-Clad Power Switchgear
The KYN28-12 type Removable Metal-Clad Power Switchgear is suitable for 3.6-12KV three-phase AC 50Hz power grids. It is used for receiving and distributing electric power, as well as for controlling,
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MNS LV Withdrawable Switchgear
The MNS low voltage withdrawable switchgear is suitable for AC 50(60)Hz power supply systems with a rated insulation voltage and operating voltage of 380(400)V or 660(690)V, and a rated current of up
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GCS LV Withdrawable Switchgear
The GCS Low Voltage Withdrawable Switchgear is suitable for distribution systems in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. It is used in
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GCK LV Withdrawable Switchgear
GCK-type low-voltage withdrawable switchgear is a device used in places such as power plants, substations, petrochemical facilities, metallurgical steel rolling mills, light industrial textile
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GGD LV Withdrawable Switchgear
The GGD AC low voltage Switchgear/distribution cabinet is suitable for power users such as power plants, substations, and industrial enterprises. It is used in power distribution systems with an AC
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Outdoor/Indoor Cable Distribution Cabinet
The outdoor/indoor cable distribution cabinet is designed for use in power systems with a rated frequency of 50/60Hz and a rated voltage of 380V. It serves for the distribution, protection, and
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Types of Switchgear

Low voltage (LV) switchgear
Low Voltage (LV) switchgear is used in various industries to regulate systems up to 1kV. It is commonly found in residential, commercial, and industrial settings where voltage is low.

Medium voltage (MV) switchgear
Medium voltage (MV) switchgear operates in systems with voltages from 1kV up to 35kV. Typically employed in utility distribution, data centers, hospitals and other commercial and industrial applications providing enhanced protection and control for systems at medium voltage levels.

High voltage (HV) switchgear
High Voltage (HV) switchgear is designed to handle voltages above 35kV. Often associated with power transmission networks, it finds application in large-scale industrial plants. HV switchgear plays a pivotal role in ensuring the safe and reliable transfer of electricity over long distances.

Air insulated switchgear
Air insulated switchgear (AIS) is the most common and most cost-effective insulation option. Its design and operation are relatively simple, and it’s known for being environmentally friendly.

Gas insulated switchgear
Gas insulated switchgear (GIS) uses sulfur hexafluoride (SF6) as the insulation medium and as the interrupting medium load break operators and in some instances for fault interruption. GIS provides higher dielectric strength than AIS and has a more compact design. It is ideal for harsh environments where submersibility is required for operation.

Oil insulated switchgear
Oil insulated switchgear (OIS) is commonly used for high-voltage applications in electrical power systems. In OIS, mineral oil is frequently used as an insulating and cooling medium. OIS offers high dielectric strength and can provide increased cooling benefits.

Vacuum insulated switchgear
Vacuum insulated switchgear uses vacuum interrupters for circuit breaking. It is commonly used in medium to high voltage applications. Some advantages of vacuum insulated switchgear include its high dielectric strength, reliability, low maintenance, and compact design.

Importance of Electrical Switchgear

Safety:

One of the primary roles of switchgear is to ensure the safety of electrical systems and personnel. It protects against overloads, faults, and short circuits, preventing potential hazards such as fires, electrical shocks, or equipment damage. Switchgear devices like circuit breakers automatically trip when there is a fault, quickly cutting off the power supply and minimizing risks.

Equipment protection:

Electrical switchgear safeguards sensitive and expensive electrical equipment by providing protection against voltage fluctuations, electrical surges, and other abnormal conditions. Properly selected and well-maintained switchgear helps prolong the lifespan and reliability of equipment, reducing the likelihood of unplanned downtime or costly repairs.

Power distribution control:

Switchgear allows for efficient control and distribution of electrical power. It enables the isolation and selective control of individual circuits, making it easier to manage power flow based on demand. By effectively managing the power distribution, switchgear optimizes the operation of electrical systems, improving energy efficiency and reducing wasted energy.

Reliable power supply:

Switchgear ensures a reliable power supply by minimizing disruptions caused by faults or failures. It provides fault detection and isolation capabilities, allowing quick identification and rectification of issues. With the ability to isolate faulty circuits, switchgear prevents cascading failures and ensures that other parts of the electrical system remain functional.

Compliance with electrical standards:

Electrical switchgear is designed to meet industry standards and regulations. By using certified and tested switchgear components, electrical systems can comply with safety codes and regulations. This is particularly important in industrial and commercial settings where adherence to standards is mandatory for regulatory compliance and insurance purposes.

Flexibility and adaptability:

Switchgear allows for flexibility and adaptability in electrical systems. It enables modifications and expansions to accommodate changing needs, such as adding new equipment or reconfiguring circuits. Switchgear also facilitates the integration of renewable energy sources and smart grid technologies, promoting sustainability and efficiency in power distribution.

Precautions for Use

Working on switchgear can be dangerous due to the risk of electrical hazards, so it is essential to follow safety precautions. These precautions include wearing appropriate personal protective equipment (PPE), receiving proper training, and regularly maintaining and inspecting equipment.

Specification

Rated Voltage	AC 380V
Rated Frequency	50Hz
Rated Insulation Voltage	660V
Protection Level	IP34D
Pollution Level	Level 3
Installation Method	Floor-mounted, wall-mounted
Rated Current	Customized according to user requirements
Feeder Circuits	Customized according to user requirements

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FAQ

Q: What precautions should be taken when using switchgear?

A: Disconnect all high voltage to the switchgear before accessing the horizontal bus compartment. Never disconnect the main trip source of energized equipment. Do not open a circuit breaker door unless the circuit breaker is open.

Q: What is the checklist for switchgear?

A: Inspect for physical damage, cracked insulation, broken leads, tightness of connections, defective wiring, and overall general condition. Verify that primary and secondary fuse or circuit breaker ratings match drawings. Verify correct functioning of drawout disconnecting and grounding contacts and interlocks.

Q: What is the protection of switchgear?

A: One of the basic functions of switchgear is protection, which is interruption of short-circuit and overload fault currents while maintaining service to unaffected circuits. Switchgear also provides isolation of circuits from power supplies.

Q: What is the clearance in front of electrical switchgear?

A: The width of the working space in front of the electrical equipment shall be the width of the equipment or 30”, whichever is greater. In all cases, the work space shall permit at least a 90 degree opening of equipment doors or hinged panels.

Q: How often should switchgear be tested?

A: Switchgear should be tested annually, and a full inspection should be performed every 1–3 years. Testing and preventative maintenance are important for the longevity and efficiency of your switchgear system.

Q: What is the difference between switchgear and main breaker?

A: While circuit breakers are a single device consisting of an external casing, electrical contacts, electrical arc extinguishing mechanisms, main operating mechanisms, and trip elements, switchgear contains numerous devices. Switchgear can consist of various switching and protecting devices.

We're well-known as one of the leading switchgear manufacturers and suppliers in China. If you're going to buy high quality switchgear, welcome to get quotation from our factory.

Outdoor Vacuum Circuit Breaker, 10kV Heat Shrink Cable Termination, 10kV Insulated Aerial Cable

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