Product Introduction

In the safe operation of medium - and high - voltage power systems, Alloy Neutral Grounding Resistors are core devices for ensuring grid stability and preventing ground faults. Made of a high - performance alloy, these resistors precisely regulate ground current, effectively resolving overvoltage issues caused by single - phase ground faults. Widely compatible with medium - voltage power grids from 6kV to 35kV, they are a critical component for power system safety.

Product Picture

Core Features

Strong resistance to extreme environments:

The alloy forms a dense oxide film on its surface, resisting corrosion from harsh environments such as moisture, acid, alkali, and dust. It operates stably even in chemical plants and coastal substations. The material is non - flammable and releases no toxic gases, eliminating the risk of fire and explosion, meeting the requirements of high - safety environments.

Long - term resistance stability:

The temperature coefficient is extremely low, minimizing the impact of ambient temperature fluctuations. For example, in the high temperatures of the distribution room in summer (40°C+) or the low temperatures of outdoor temperatures in winter (-30°C), the resistance deviation does not exceed 1%, ensuring accurate ground current control and preventing relay protection malfunction or failure due to resistance drift.

Shock resistance and long life:

The alloy's high melting point and high mechanical strength prevent it from melting or deforming under short - term, high - current surges (such as 10 times the rated current during a fault). Furthermore, the material is chemically stable, free of aging and embrittlement. The Alloy Neutral Grounding Resistor has a service life 5 - 8 years longer than ordinary cast iron resistors, reducing maintenance and replacement costs.

production equipment

Core Processing

Alloy resistor forming process:

Vacuum melting technology is used to ensure uniform alloy composition (impurity content ≤ 0.01%), preventing local overheating caused by uneven composition. The resistor surface undergoes a sandblasting passivation treatment to further enhance corrosion resistance.

Insulation and packaging:

The resistor body and external terminals are separated by high - temperature ceramic insulators, achieving Class H insulation (temperature resistance of 180°C). The entire packaging process is performed in a dust - free room to prevent impurities from affecting insulation performance.

About the factory

High quality: Our products are made of high quality raw materials and exquisite workmanship to ensure the durability and reliability of the products.

Safe and reliable: Our products have undergone strict quality control and testing to ensure the safety and reliability of products, so that users can use more assured.

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