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04-20 / 2017

Domestic development of dual power automatic transfer switch

Double power supply transfer system product (ats automatic transfer switch) development has generally experienced three categories: contactor type, molded case circuit breaker / load isolation switch class, integrated automatic transfer switch type. Contactors This kind of switching power supply s...
04-19 / 2017

Double power supply automatic transfer switch

Double power supply automatic transfer switch(TXQ6: 200 amp automatic transfer switch), which is a device controlled by a microprocessor, and is used for starting and switching of the networkand network or the network and the generatorin the power system. Series dual power supply, when electric sudd...
04-18 / 2017

What is the function of the auxiliary contact of AC contactor?

AC contactor (cjx1accontactor) mainly isCJX2 series, CJ20 series, CJT1 series of the CJ series, 3TB, B series and some of the most commonly used products. AC contactor is mainly composed of four parts: (1) the electromagnetic system, including attraction coil, moving core and static core; (2) contac...
04-17 / 2017

Detailed introduction of working principle of DC circuit breaker

In a DC circuit breaker (dz47 electric car-air switch electric motorized circuit breaker manufacturers), the main circuit comprises a lower connecting line for supporting the movable contact, and a contact closing device of an upper connecting row and a surface silver plating is composed of a large ...
04-15 / 2017

Operating rules for dual power conversion switches

Operating rules for dual power conversion switches (TXB7SD 30 amp manual transfer switch) 1. When the power outage, and in a short period of time can not restore power supply, must enable the standby power supply. Step: The removal of electric power supply of each circuit breaker (including the circ...
04-14 / 2017

What is DC circuit breaker?

DC circuit breaker(DZ47Z-63 dcminicircuitbreaker)is mainly in DC electrical lines and equipment overload and short circuit protection, the controller also belongs to the DC electrical circuit, the equivalent of which we use in daily life tap, tap water is controlled, and the DC circuit breaker is cu...
04-13 / 2017

The correct installation of lightning protector is the premise of lightning protection

Lightning disaster is one of the main meteorological disasters in China, with the development of economy and the improvement of people's living standards, a variety of high-tech electronic equipment is becoming more and more popular, lightning disasters are more prominent, the internal lightning pro...
04-12 / 2017

Classification of surge protective devices

Surge protection device (TXU3 SPD) is also called surge protector, is used to limit transient overvoltage and leakage protection devices on the guidance of nonlinear surge current of charged system, to protect the low voltage level of electrical or electronic systems against lightning and lightning ...
04-10 / 2017

Function of DC circuit breaker

DC circuit breaker (12 volt dc circuit breaker 60 50 40 30 20 10 amp) has a super current limiting function, can accurately protect the relay protection, automatic equipment from overload, short circuit and other shortcomings. The DC circuit breaker has the advantages of current limiting and arc ext...
04-10 / 2017

How to choose the residual current circuit breaker correctly?

Indirect contact with different places of electric shock, can cause different degrees of harm to the human body, so different places should be installed in different residual current circuit breaker(earthleakageswitch). Here is how to choose the residual current circuit breaker. To harm the place of...
04-08 / 2017

Guide for selection of molded case circuit breakers

Guide for selection of molded case circuit breakers(DZ20125a150a200a350a500acircuitbreaker) (1) Suit one's measures to local conditions According to the specific conditions of use, select the category, according to the rated current of the circuit and the protection requirements to determine the spe...
04-07 / 2017

What is the role of distribution box

Distribution boxes (multimediadistributionbox) is in accordance with the requirements of electrical wiring to assembleswitch equipment, meter, maintenance applianceand auxiliary equipment in a closed or semi closed metal cabinet or screen,to form low voltage distribution equipment. When normal opera...
04-06 / 2017

Basic knowledge of AC contactor that you should understand

What is normally open normally closed contact? Normally open NO - in the absence of contact, the contact is open; Normally closed NC - in the absence of contact, the contact is closed; When working, the normally closed contact is disconnected first, and the normally open contact is closed again. Whe...
04-05 / 2017

Discussion on the difference between molded case circuit breaker and miniature circuit breaker

With the development of science and technology, the common circuit breakers are molded case circuit breakers and miniature circuit breakers, The difference is as follows: The main function of molded case circuit breaker(CM1LE residualcurrentmoldedcasecircuitbreakers)is to provide protection for over...
04-02 / 2017

Working principle of AC contactor

1. Introduction The utility model relates to a contactor (or cj20dccontactor), which is a device which uses a coil to flow through an electric current to generate a magnetic field to make the contact close. Electrical ac contactor (or cj20dccontactor) as a kind of contactor, the completion of the ro...
04-01 / 2017

Causes of tripping of circuit breaker

The leakage protection circuit breaker (RCCB, RCD)is a switch which can automatically operatewhen the leakage current exceeds the preset value. Commonly used circuit breakers are divided into two types of voltage and current, and the current type is divided into electromagnetic and electronic type o...
03-31 / 2017

Structural features of Voltage Protector

1. The automatic voltage protector (over voltage and under voltage protection devices) is composed of a shell, an operating mechanism, a thermal release, an electromagnetic trip unit contact system, an arc extinguishing system and a over-undervoltage protection circuit board. The circuit breaker has...
03-30 / 2017

The difference between CB level and PC level of ATSE

1.Both of the two mechanical design conceptsaredifferent. The equipment is converted to dual power switch (solar transfer switch), and not used as line segments and line protection, ATSE should not take short circuit and overcurrent protection function. CB ATSE solar transfer switch by two circuit b...
03-29 / 2017

Development trend of dual power automatic transfer switch (ATSE)

Generally consists of two parts: ATSE electrical switch body controller. The development trend of ATSE (dualpowertransferswitch) mainly includes two aspects: one is the main switch, with anti impact current ability is very high, and frequent conversion; with reliable mechanical interlock, to ensure...
03-28 / 2017

Development of dual power automatic transfer switch (ATSE)

With the rapid development of economy and the improvement of people's living standard, people have more and more requirements on the reliability of electric power. Power is the ability of the power system reliability of continuous power supply bureau, now 35KV substation realizes the dual power supp...
03-27 / 2017

Working principle of DC circuit breaker

The application of DC circuit breaker is very wide, from the DC power supply to rail transport and electric locomotive from the ship to the power system of power plant and substation, DC circuit breaker electrical equipment ensure the security of the power system plays an indispensable role in the p...
03-25 / 2017

Application of control and protection switch

Control and protection switch products usea single product structure of modularization, integratedmain functions of the traditional circuit breaker (fuse), contactors, overload (or overcurrent, open phase)protective relay, starter, isolator, mainly used in the power systemofAC 50Hz (60Hz), rated vol...
03-24 / 2017

Installation and application notice of AC contactor

Precautions before installation of electrical ac contactor: 1 electrical ac contactor should be carefully checkedwhether the nameplate data meets the requirements in the contactor circuit before installation, whetherthe coil working voltage meetscontrol power rated voltage. 2 electrical ac contactor...
03-23 / 2017

Characteristics of FTTH optical fiber home information box

FTTH Box (fiber termination box) is mainly refers to a kind of transmissionmode for communication byoptical fiber, optical fiber received in the homes, it can bring greater bandwidth for users, to speed up the network traffic speed, so that the network environment and power supply requirements becom...
03-23 / 2017

Five connection methods of multimedia information box and wiring box

Multimedia-distribution-box, distribution box wiring mainly has the following connection methods: 1.Star connection 2.Bus connection 3.Power line carrier connection 4.Infrared connection (IR) 5.Wireless (RF) connection First, from the stability perspective, star connection is the most stable and re...
03-20 / 2017

Selection precautions for miniature circuit breaker

1.The impact of ambient temperature on the rated current.overload protection characteristics of dz47-60circuitbreakerwithshunttripare usually completed by the sampling element (resistance) and induction components (hot bimetallic), hot bimetallic sheet heated and bent over a certain limit, release t...
03-16 / 2017

What are the selection principles of miniature circuit breakers?

1. General selection principle Rated operating voltage of the miniaturecircuit breakers ≥ line rated voltage Rated current of the miniaturecircuit breaker ≥ line calculation load current Rated short-circuit making-breaking capability of the miniature circuit-breaker ≥ The maximum short-circuit curre...
03-10 / 2017

What is the normal working state of the limit automatic controller?

The current limit automatic control device(Current limiter) is used in the control circuit which is satisfied in the AC current and the working voltage to ensure that the system is powered according to the predetermined electric power! Once the electric load exceeds the specified range value, the co...
03-06 / 2017

The disconnector uses the basic information associated with the switch

Our life is often used to a thing, this thing is called electrical isolator switch, the use of this switch and appear in our country is already very common, but the use of the location is not the same, and in the installation and some The location of the choice is also a certain degree of differenti...
03-01 / 2017

Why are you need to use the firber box?

As the shelter of the family, has not only called for the realization of electrification and automation, but also requires intelligent and humane. The use of modern information technology, households can do homes, enjoy more exciting and rich information-based life - such as online shopping, stocks,...
02-28 / 2017

What are the issues to consider when purchasing a molded case circuit breaker?

With the moulded case circuit breaker MCCB more and more popular, many industries can be used, the family can also be used. But molded case circuit breaker is close to personal safety, can not casually buy. It is not like ordinary goods, buy do not like to throw away directly. If the quality of moul...
02-27 / 2017

Classification of Distribution Circuit Breakers

For the distribution type circuit breakers, it has Class A and Class B: Class A is a non-selective type, Class B is an optional type. Selective type refers to the circuit breakers with overload long delay, short circuit short delay and short circuit instantaneous three protection characteristics. T...
02-23 / 2017

TAIXI Electric recommends a new type of automatic reclosing circuit breaker

According to statistics, 80% of the low-voltage circuit breaker tripping, are caused by the cause of chance, and by the permanent failure caused by low-voltage circuit breaker tripping ratio of not more than 10%. In particular, the residual current circuit breaker, resulting in its malfunction for ...
02-16 / 2017

Selection of circuit breakers for motor protection

There are two different ways of using the mpcb circuit breaker. One is to control the motor in series with the other switchgear (such as knife switch, contactor, etc.), that is, the circuit breaker is only short circuit, overload or under voltage protection. , The normal operation by other electrica...
12-22 / 2016

Comparison between the two most common protective appliances

Whether it is used in electrical or industrial life, there is the risk of short circuit or lightning, it is particularly important to protect the electrical appliance market. The protection is mainly divided into two types: one is the circuit breaker, fuse is two. Many types of circuit breakers, non...
11-18 / 2016

The use of self dual over voltage protector to protect our life electricity

We are for security issues very seriously, every day, our life may appear all kinds of accidents and disasters, in order to ensure the effect of our wonderfull life is not affected by the accident, so the protection of life safety is very important for the power line very dangerous road to our very ...
11-18 / 2016

When you buy Molded Case Circuit Breaker you have to think about problem

With the circuit breaker is becoming increasingly popular, many industries can use the family can also be used. But the MCCB relates to personal safety, can casually buy. It is not an ordinary commodity, buying is not love directly away. If the quality of circuit breaker does not pass, will have ver...
11-18 / 2016

Performance and characteristics of PC transparent meter box

Now meter box every household or unit to use things, with a transparent meter box after the use of the more convenient, and now meter box quality and appearance also increased a lot from the overall above. 1. overall performance of meter box PC transparent electric meter box is used to design a ful...
11-18 / 2016

How to choose a suitable overvoltage and undervoltage circuit breaker?

In today's society, people's life and work more and more cannot do without electricity, regardless of family life or industrial production and life everywhere to use electricity, but because the electrical equipment line failure caused by fire events more and more, and usually such fires have caused...
11-18 / 2016

Main functions and characteristics of small isolation switch

The use of electrical isolator switch is actually very common in life, which plays a major role is to separate so far, has a isolating switch disconnect sign is very obvious in the contact between, and in a certain position above, in the normal circuit under the condition, and can prevent the harm...
11-18 / 2016

Application and requirement of plastic distribution box in Engineering

The use of plastic distribution box is very common, we can often see in daily life. In the aspect of the use of the project, using plastic distribution box is to meet the needs of the project design and use, for the present, in order to use in engineering to meet the basic needs, requirements for di...
11-18 / 2016

The basic performance of MCCB

What exactly is the use of MCCB, why many industries are able to be used. In general, its role is very big, has a very important significance. Then, circuit breaker in the end be able to bring what surprises for you? Just follow us to explore, may be able to find a lot of surprises. First, with the ...
11-18 / 2016

Main function of Self - resetting overvoltage and undervoltage protector

Along with the development of the electric power industry, our lives are in use every hour and moment, if there is no electricity, life will enter into a state of paralysis. However, with the widespread use of electricity in life, electric fire is also increasing, since the Self - resetting overvolt...
11-18 / 2016

L7 miniature circuit breaker performance and use environment

The instrument in industrial and commercial and residential places will use a lot of people do not understand, such as the L7 circuit breakers. The miniature circuit breakers are important to ensure that under normal circumstances, let the line conversion in frequent operation, can be used in many p...
09-18 / 2016

The innovation of two-dimensional bar code management, push the rapid development of electrical.

Recently, the technology used in the TAIXI electrical products automatic identification of a new image, it records all the information product is born, only need to scan, from parts to assembly to finished products to all the user's data can all be revealed, it is the two-dimensional bar code, two-d...