Your Professional Earthing Switch Supplier

 

 

Our goal is to become your true partner in the field of earthing switch. Granso produces a broad, tailored, comprehensive range of metal parts. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 

 
 

 

 

  • Earth Breaker Switch
    The F unit earth breaker switch of the gas- insulated switchgear is a load switch fuse combination module, which is equivalent to the outgoing line of the ring main unit.
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  • 11kv Earth Switch
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  • Earth Switch in Switchgear
    The earth switch in switchgear JN22-40.5/31.5 is a specific indoor high-voltage grounding switch designed for use in 40.5kV-rated electrical systems. Its core function is to provide a reliable,...
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Why Choose Us

 

 

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Our team:

 

We have a professional team of over 200 employees, including over 25 professional technicians.

Quality control:

 

We rigorously control every process, ensuring our products comply with relevant standards such as GB7251.1, GBT/23359, and JB/T9661.

Our services:

 

In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation.

 

During the sales period, we ensure timely delivery and provide installation guidance.

 

For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

 

 

Advantage of Earthing Switch

 

 

 

High safety:

The earth switch can effectively connect the circuit to the ground wire. When leakage or failure occurs in the circuit, the current can be directed to the ground in time to avoid harm to personal safety.

01

Protection equipment:

The earth switch can provide protection for electrical equipment. When the voltage of the equipment is too high or overloaded, the grounding switch will automatically cut off the circuit to avoid equipment damage.

02

Reduce electrical interference:

The earth switch can effectively reduce electrical interference, such as overvoltage, electromagnetic wave interference, etc., and provide a good electrical environment.

03

Energy saving and environmental protection:

The use of earth switch can avoid current leakage and reduce the waste of electric energy, thereby achieving the purpose of energy saving and environmental protection.

04

Easy maintenance:

Earth switch usually have the characteristics of high reliability, long life, easy operation, etc., and maintenance and management are relatively simple.

05

 

 

 

Product Parameters

 

 

No. Item Data
1 Rated Current 24kA
2 Rated short-time withstand current 31.5kA
3 Rated short-time making current 80kA
4 Rated peak withstand current 80kA
5 Rated short-circuit duration 4s
6 Rated insulation level 1min power frequency withstand voltage 65kV
Lightning impulse voltage 125kV
7 Mechanical life 2000times

 

 

Types of Earthing Switch

 

 

Indoor high voltage grounding switch: It is suitable for indoor 3-12kv three-phase ac 50(60) hz power systems to be used in conjunction with various types of high-voltage switch cabinets. It can also be used as grounding for high-voltage electrical equipment maintenance.


An indoor high voltage electric grounding switch: Consists of a motor, a driving device, an electric air control device, as well as the main shaft of the grounding switch.


Fes fast earthing switch: The earthing switch is divided into two types: The earthing switch for maintenance (es) and the earthing switch for fault fast closing earthing switch(fes).

 

 

 

Application of Earthing Switch

 
01.

Switchgear panels:

Earthing switches are prominently used in switchgear panels as they help in controlling and protecting circuits. Well, the switch makes it possible for every section under maintenance to be completely grounded so that no electrical shock or system damage is suffered.

02.

Substations:

Substations deal with high-voltage power. In this case, earthing switches are necessary for connecting parts of the systems, such as power lines, before any repair or servicing.

03.

VCB panels:

Earthing switches are a necessity in vacuum circuit breaker (vcb) panels for increased safety. The panels deal with medium-voltage power. So, the earthing switch grounds the system before the panel is opened in order to protect people from potential shock from electricity.

04.

Renewable energy systems:

In solar and wind power systems, earthing switches are used to disconnect circuits that require maintenance. These systems often operate in uninhabited or extreme environments.

 

 

Packing and Shipping

 

 

Packing

Wooden / Catoon / Pallet

Shipping

Express, Air Freight, Sea Freight, LCL/FCL

 

 

 

FAQ

 

 

Q: What is the earthing switch?

A: An earth switch is a mechanical switching device for protecting parts of a circuit. It is capable of sustaining currents for a specific time under abnormal conditions such as short circuits. During normal circuit conditions, it doesn't carry any current.

Q: What is the purpose of a grounding switch?

A: The grounding switch, a significant safety device, connects electrical systems or equipment to the earth, creating a safe pathway for potential fault currents to dissipate. This protective measure prevents accidents and injuries related to electricity.

Q: Do switches need earthing?

A: Some switches have a terminal for ground wire, and some don't. Newer switches tend to be grounded, but it's not really necessary if the switch is wired correctly. Also, a lot of older houses don't have a ground wire running to the switch box.

Q: What is the difference between disconnecting switch and earthing switch?

A: A disconnecting switch can interrupt a small current when, after opening, a negligible voltage appears over the contacts. Earthing switch is predominantly used to make parts of the circuit including equipment safe to access by bringing them to earth potential.

Q: Is it better to switch ground or positive?

A: Power switching will more likely result in the tripping of a breaker or fused device. Ground switching will more likely result in a latching of the load device in an energized state. There is no absolute guarantee that these results will be seen in failure cases, but at least we can sway the odds.

Q: Do I need a disconnect switch?

A: Disconnect switches prevent many common electrical incidents, including short circuits and surges. These problems can severely harm or even destroy important equipment, costing you a lot in replacement and repair, making installing a safety switch a very smart investment.

We're professional earthing switch manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy earthing switch at competitive price from our factory.

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