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What is the meaning of vacuum of vacuum circuit breaker？
Regarding the meaning of vacuum in vacuum circuit breakers, there are many types of circuit breakers, including vacuum circuit breakers, more oil and less oil circuit breakers, sulfur hexafluoride circuit breakers, compressed air circuit breakers, etc. The vacuum circuit breakers have strong arc ...Read more -
Environmental conditions and use requirements for drop-out fuse installation
1. Installation and use environmental conditions of drop-out fuse Environmental conditions for installation and use: 1). The normal operating conditions of the product: the ambient temperature is not higher than +40 degrees and not lower than -40 degrees; the altitude does not exceed 1000m; the m...Read more -
Precautions for installation of drop-out fuse
1. Check before installation: ①. Check whether the specifications and models of the fuse are appropriate, whether there is a manufacturer and factory certificate. ②. Whether all parts of the fuse are complete and intact, whether there are cracks or damages in the porcelain parts. ③. Whether the d...Read more -
How to avoid the failure of most drop-out fuses
Purchase qualified products. The capacity of the configured fuse should be selected according to the relevant regulations: 1. The primary side fuse of the transformer is used as the backup protection for the transformer itself and the secondary side outgoing fault. It is matched wit...Read more -
What are the common failure causes of drop-out fuses?
The fuse is not normally blown. The fuse blows and causes the tube to drop. In theory, the fuse protection has played a role. However, it can be clearly seen from the statistical charts of previous years that abnormal fusing has time and climatic rules, which are reflected in July to August each ...Read more -
10kv drop-out fuse switch selection skills
The 10kV drop-out fuse is suitable for the environment where the ambient air has no conductive dust, no corrosive gas, flammable, explosive and other dangerous environments, and the annual temperature difference ratio is within ±40℃ The selection is based on the two parameters of extra voltage an...Read more -
Technical Measures for Preventing Lightning Strikes for 10kV Overhead Insulated Conductors
According to the mechanism of lightning-struck disconnection of insulated wires, generally speaking, the corresponding preventive measures mainly include two ways: “draining” and “blocking”. The so-called “grooming” is to partially bare the insulated wir...Read more -
How to choose household circuit breakers and air switches?
Circuit breaker, full name automatic air circuit breaker, also known as air switch, is a commonly used low-voltage protection electrical appliance, which can realize short-circuit, overload and other functions. Circuit breakers are used as main power protection switches or branch line protection ...Read more -
What is the difference between a fuse cutout and a circuit breaker
Regarding the difference between a fuse cutout and a circuit breaker, we introduce the similarities between a fuse cutout and a circuit breaker, a few differences between a fuse cutout and a circuit breaker, and the different protective effects of a fuse cutout and a circuit breaker on the circ...Read more -
Several differences between isolating switch, circuit breaker and air switch
Circuit breakers High-voltage circuit breakers and low-voltage circuit breakers are electrical protection devices. There are many types of them, and they all have arc extinguishing devices. The full name of the air switch is an air-type low-voltage circuit breaker, which is a type of circu...Read more -
Seven common functions of circuit breakers
How to choose a circuit breaker, when choosing a circuit breaker, pay attention to the seven major functions, consider the seven factors, and understand the seven common functions that should be paid attention to when choosing a circuit breaker. Common functions of circuit breakers: 1. Duplex con...Read more -
The use of silicone rubber insulators on power equipment
Silicone rubber (English name: Silicone rubber), divided into thermal vulcanization type (high temperature vulcanized silica gel HTV), room temperature vulcanization type (RTV), of which room temperature vulcanization type is divided into polycondensation reaction type and addition reaction type....Read more