The Neutral Point Grounding Manufacturer!
Baoding Smail Electric Co., Ltd. was established on July 1, 2009 and is located in the National High-tech Industrial Development Zone of Baoding City, Hebei Province. It is a high-tech enterprise focusing on the research and development of power system automation, relay protection and instrumentation.
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Transformer Neutral Point Grounding Resistor CabinetWith the development of urban power grids, the proportion of cable lines is increasing year by year, leading to a surge in ground capacitance current.
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Primary Harmonic SuppressionIn my country's 6-35KV ungrounded neutral power grid, electromagnetic voltage transformers (PTs) face two related problems:
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Transformer Neutral Point Gap Grounding Protection Comple...Our company's SMR-ZJB series transformer neutral point gap grounding protection device is a specialized complete set of equipment for overvoltage protection of the neutral point of 110kV/220kV
Why Choose Us
One-stop service
The company has a 3,600 square meter production base, with advanced production equipment and technical teams as well as R&D teams. It can customize products according to customer needs and strictly implement quality management systems to ensure product quality and production efficiency.
Production Market
Our products have won long-term trust and praise from customers such as State Grid, China Southern Power Grid, China Guoneng, China Huadian, State Power Investment Corporation, China Datang, China Huaneng and other major energy companies.
Certifications
It currently owns more than 20 patents and 18 software copyrights, and has passed ISO 9001 quality management system, ISO 14001 environmental management system and ISO 45001 occupational health and safety management system certification.
Advantages of Neutral Grounding

Improved Safety: It reduces the risk of electric shock to personnel by limiting the voltage rise of the system neutral during ground faults.
Fault Detection: It facilitates the detection and clearance of ground faults by providing a return path for fault currents, enabling protective devices to operate effectively.
Equipment Protection: Limits the damage to electrical equipment by controlling the magnitude of fault currents.
System Stability: Helps maintain system voltage stability during ground faults.
Reduction of Transient Overvoltages: Neutral grounding reduces transient overvoltages caused by arcing ground faults.
Improved Power Quality: Helps in maintaining balanced voltages and reduces the possibility of voltage fluctuations.
Minimizes Downtime: Faster fault detection and clearance reduce system downtime and improve reliability.
Types Of Neutral Grounding
Solid Grounding
In this method, the neutral is directly connected to the earth through a wire of negligible resistance and reactance.


Resistance Grounding
In this method, a resistor is inserted between the path connecting the neutral to the earth to limit the earth fault current to a safer value.
Arc Suppression Coil (Peterson coil) Grounding
This method uses an iron-cored reactor connected between the neutral point and the earth.


Reactance Grounding
In this method, the neutral wire is connected to the earth through a reactance.
Voltage Transformer Grounding
Here the primary winding of the voltage transformer is connected between the neutral and earth and the secondary is connected to a relay through a low resistor.


Earthing Transformers (zig-zag transformer)
In this type, a three-phase, dry type, air-cooled auto-transformer with no secondary winding is used.
Power Plants: Neutral point grounding for 6kV or 10kV power supply systems.
Substations: Neutral point grounding for 10kV and 35kV distribution systems.
Industry and Manufacturing: Power distribution networks for steel, chemical, mining, petroleum, data centers, and large manufacturing plants.
Urban Power Grids and Infrastructure: Power supply systems for subways, airports, ports, hospitals, and commercial complexes.
Renewable Energy: Medium-voltage side of step-up substations for wind farms and photovoltaic power plants.

Packing Details
We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package.

Delivery Details
We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc.
TNT, DHL,UPS, FEDEX, EMS,S.F EXPRESS etc.
FAQ
We are one of the most professional neutral point grounding manufacturers in China, also support customized service. Please rest assured to buy high quality neutral point grounding at low price from our factory. If you have any enquiry about samples, please feel free to email us.
Grounding transformer and low resistance complete set of equipment, Transformer Neutral Point Gap Grounding Protection Complete Set Device, Primary harmonic suppressor
