Blog

Feb 28-2024

In any modern industrial facility, the need for a robust and efficient supervisory control and data acquisition (SCADA) system is paramount. This system helps monitor and control various processes, en...

Feb 14-2024

Understanding of Remote Terminal UnitsRemote Terminal Unit (RTU) is a modular structure with a special computer measurement and control unit designed for long-distance communication and harsh industri...

Oct 10-2023

Motor Control Centers (MCC) play a pivotal role in industrial and commercial settings, efficiently managing electrical power distribution and motor control. At the heart of these systems lie MCC elect...

Sep 15-2023

Vacuum circuit breakers have the characteristics of low arcing voltage, strong arcing ability, fast breaking speed, large breaking capacity, long service life, and adaptability to frequent operations....

Sep 08-2023

The extinction of arc is one of the important applications of vacuum circuit breaker, because the arc not only damages the equipment circuit but also affects personal safety.Common arc extinguishing m...

Sep 01-2023

Outdoor vcb wiring methods can be divided into four types: front panel wiring, back panel wiring, plugin wiring, and accessory cabinet wiring.Outdoor vcb front panel wiringFront panel wiring is the de...

Aug 25-2023

Low-voltage distribution box is a device responsible for controlling, protecting, converting, and distributing electrical energy at the terminal end of the low-voltage power supply system. It is mainl...

Aug 18-2023

The so-called SF6 load switch refers to installing the circuit breaker on the movable arm of the isolating switch, forming a combination of isolating switch and circuit breaker, called a load switch. ...

Aug 16-2023

From the basic circuit of load switch, its characteristics are simple structure, but the drawback is the lack of overheat protection (if there is a local short circuit or output short circuit in the l...

Aug 09-2023

The basic testing methods of vacuum circuit breakers: The traditional method is the power frequency withstand voltage method, and the new method is the ion charge sampling and excitation discharge pri...

Jul 29-2023

Vacuum Circuit Breaker is widely used in low-voltage distribution system software in engineering construction, which is a kind of electrical components maintenance, with functions of short circuit mai...

Jul 22-2023

SF6 circuit breaker switches have been widely used in power systems, with the advantages of strong arc quenching efficiency and good cycling performance, which reduces the risks of distribution networ...

Jul 15-2023

Vacuum circuit breaker is one of the key power distribution equipment electrical devices with wide range of consumption in low voltage distribution boxes. Due to the insufficient or incomplete underst...

Jul 08-2023

Junk-line faults are mostly temporary in power systems. After the relay protection quickly trips and controls the circuit breaker to disconnect the faulty point, the insulation level at the fault poin...

Mar 17-2023

Vacuum Circuit Breaker Rated VoltageVacuum Circuit Breaker must operate under its rated voltage, and therefore, the operating voltage should be based on its higher rated voltage. The voltage at which ...

Mar 10-2023

Vacuum breaker is the main electrical equipment in substations. It may trip due to various reasons during operation. When the vacuum breaker fails to trip, it poses a great threat to the safe operatio...

Jan 12-2023

As we all know, the SF6 load break switch on the outdoor pole is mainly used for power-off equipment under the no-load or light-load conditions of small-capacity transformers and high-voltage power ca...

Jan 05-2023

Vacuum circuit breakers are becoming more and more popular, and safety accidents of misoperation often occur. At present, safety accidents of outdoor vacuum circuit breakers operating online with load...

Sep 15-2022

At present, load switches are basically used in distribution network equipment. The failure of any section of line or user equipment can cause the outgoing switch of the substation to trip, and the en...

Sep 08-2022

What is automatic reclosing? Do you know what features it has? The number of automatic reclosing actions. The number of actions of the reclosing device should comply with the pre-determined regulation...

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...

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...

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...

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...

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. ...

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 ...

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...

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....

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 ...

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...

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...

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 ...

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...

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 ...

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...