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What is the Role of the AC Power Distribution Box?

Jun 17-2022

1. The three-phase AC power distribution box is mainly suitable for the AC power distribution of mobile base stations, microwave stations and other communication roomsThe AC power distribution box bod...

What Are the Classifications of Automatic Circuit Recloser?

Jun 03-2022

The automatic reclosing circuit breaker is a facility that automatically recloses the circuit breaker by using a mechanical device or an automatic relay device after it is opened for some reason. If t...

The Difference and Application of Vacuum Circuit Breaker, Automatic Recloser and Sectionalizer

May 16-2022

1. The difference between automatic recloser and segmenterAutomatic recloser is a circuit breaker with automatic reclosing function, which is generally used in outdoor lines, which can quickly recover...

The Main Cause of Vacuum Reduction of Vacuum Circuit Breaker

May 09-2022

Vacuum circuit breakers use the physical factors that eliminate arcs to continue so that arcs cannot be formed or sustained. The vacuum tube used in the vacuum circuit breaker maintains a certain degr...

Vacuum Test Method for Vacuum Circuit Breakers

Apr 15-2022

The vacuum degree test of the vacuum circuit breaker is very important. Once the vacuum degree is destroyed, the arc cannot be extinguished, resulting in an explosion accident of the circuit breaker. ...

What is the Role of SF6 Load Break Switch?

Apr 08-2022

In daily life, we often see the figure of the SF6 load break switch, and its application greatly facilitates our life. So do you know what it does? If you don't know, you might as well follow the ...

How to Install Vacuum Circuit Breakers?

Mar 16-2022

High-voltage vacuum circuit breakers have a good arc-extinguishing characteristic, which is suitable for frequent operation, and a long non-maintenance cycle. They have been widely used in urban and r...

Differences Between Load Break Switches and Circuit Breakers

Mar 02-2022

1. Load break interrupter switchThe load break interrupter switch has a simple arc extinguishing device, which can open and close the circuit with load, and has the function of self arc extinguishing....

What is the Difference Between Pole Mounted Disconnect Switch, Load Break Switch and Vacuum Circuit Breakers?

Feb 23-2022

The disconnect switch has no special arc extinguishing device, and its arc extinguishing ability is weak. The load switch is an on-off switch with a dedicated arc extinguishing contact, an arc extingu...

What Are the Performance Requirements of the DC Power Distribution Box?

Feb 09-2022

The DC power distribution box is an intermediate device between the rectifier, the battery and the DC load in the DC power supply system, and has the functions of circuit conversion, protection, contr...

Function of Vacuum Circuit Breaker in Power System

Jan 19-2022

Vacuum circuit breaker has the characteristics of low arc extinguishing voltage, strong arc extinguishing ability and fast breaking speed. The mechanism of overvoltage generation includes cut-off over...

The Difference Between SF6 Circuit Breaker and SF6 Load Break Switch

Jan 05-2022

1. Introduction of sf6 load break switch and sf6 circuit breaker(1) sf6 circuit breakerSulfur hexafluoride circuit breaker is a circuit breaker that uses sulfur hexafluoride (SF6) gas as arc extinguis...

Advantages of Automatic Circuit Recloser in Power System

Dec 20-2021

After the power supply is disconnected by the protection action, the arc at the fault point is automatically extinguished, the insulation strength is restored, and the fault is eliminated by itself. I...

Basic Requirements for Automatic Circuit Recloser

Dec 06-2021

Ⅰ. The number of actions of the automatic circuit recloserThe number of actions of the automatic circuit recloser should meet the pre-determined. For example, a three-phase reclosing device should on...

Measures to Prevent Incorrect Operation of Vacuum Circuit Breakers

Nov 17-2021

The vacuum circuit breaker has fast breaking speed, strong de-ionization, and is not easy to form arc reignition. It not only effectively limits the overvoltage in system operation, but also the movin...

The Generating Mechanism and Precautions of Vacuum Circuit Breaker Operating Overvoltage

Nov 03-2021

Vacuum circuit breakers have the characteristics of low arc extinguishing voltage, strong arc extinguishing ability, fast breaking speed, large breaking capacity, long service life, and frequent opera...

How to Design Tripping Mechanism of Vacuum Circuit Breaker?

Oct 25-2021

For the design of the tripping mechanism of the vacuum circuit breaker, the first step is to choose the type of mechanism, and then determine the size of the buckling surface, calculate tripping power...

Features And Application Ranges of Automatic Recloser

Oct 18-2021

The automatic recloser is a power distribution switch equipment with protection and automatic control functions. It can automatically break and reclose in the AC circuit according to the pre-set break...

What Are the Notes for Auto Circuit Recloser?

Oct 11-2021

1. Notes for installation of the automatic circuit recloser(1) The switch should be installed on the wall or in the main box to avoid direct rain and sun.(2) The wiring terminal of the automatic circu...

The Main Function of the Auto Circuit Recloser of the Transmission Line

Oct 04-2021

1. The automatic circuit recloser can improve the reliability of the power supply of transmission linesTransmission line faults can be divided into instantaneous faults and permanent faults. The exper...

Working Principles of Sf6 Gas Load Break Switch

Sep 23-2021

Broadly speaking, there will be many types of high-voltage ring network cabinets, including vacuum circuit breakers, gas-filled cabinets, and central cabinets. sf6 gas load circuit breaker is called r...

Selection Principles of Automatic Circuit Recloser

Sep 16-2021

The so-called automatic reclosing device is an automatic device that automatically turns on the circuit breaker that has tripped due to a fault as needed. The power system adopts an automatic reclosin...

How to Adjust the Mechanical Characteristics of Vacuum Circuit Breakers?

Sep 09-2021

This is about the method of adjusting the mechanical characteristics of vacuum circuit breakers, the content of adjusting the mechanical characteristics of vacuum circuit breakers. It is relevant to t...

Daily Maintenance of Vacuum Circuit Breaker

Sep 02-2021

The maintenance methods of vacuum circuit breaker or routine maintenance of it: how to ensure it is in good working state, clean pipe protection, replace rubber parts regularly and check the main comp...

Replacement Conditions of Vacuum Arc Extinguishing Chamber of Vacuum Circuit Breaker

Aug 23-2021

1. Whether the vacuum circuit breaker arc extinguishing chamber needs to be replaced?Let's look at the replacement conditions of vacuum vacuum circuit breaker arc extinguishing chamber. Whether it...

How to Determine Whether the Vacuum Circuit Breaker is Broken Down?

Aug 16-2021

The analysis of faults and faults' causes of vacuum circuit breaker, such as how to judge whether it is fault , its fault reasons. And it includes no energy storage, no closing breaker action, or ...

Role of Vacuum Circuit Breaker in Power System

Aug 09-2021

Let's look at the working principle of vacuum circuit breaker and the role of vacuum circuit breaker in the electric power system. Vacuum circuit breaker's arc extinguishing medium and the ins...

Classification and Characteristics of Automatic Superposition

Aug 02-2021

1. The classification of auto recloserThe automatic recloser is divided into single-phase and three-phase according to the number of phases; column type, underwater type, ground type and underground t...

Working Principle and Advantages and Disadvantages of VCB Breaker

Jul 22-2021

Ⅰ.VCB breaker working principleCircuit breaker, also known as air switch, automatic circuit recloser. When the working current exceeds the rated current, or short circuit and voltage loss occur, the ...

Comparison of Two Kinds of SF6 Pole Mounted Switches

Jul 15-2021

1. SF6 circuit recloser of pole mounted switchStructure: SF6 circuit recloser is sulfur hexafluoride circuit breaker. The structure of SF6 circuit breaker is mainly porcelain post structure and tank s...

Function, Maintenance and Precautions of Outdoor VCB Breaker

Jul 08-2021

Ⅰ.VCB breaker maintenance and precautions1. During the regular maintenance and inspection of outdoor vacuum circuit breaker, the general tasks are: measuring the overtravel and stroke of the circuit ...

Function and Operation of Load Break Switch

Jul 01-2021

Ⅰ.Load break switch functionLoad break switch is a kind of on-off switch with special arc extinguishing contact, arc extinguishing device and spring circuit breaker. It can only open and close the lo...