সংবাদ প্রতিবেদন
সংবাদ
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04-22 / 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, theirdifference is as follows: The main function of molded case circuit breaker is to provide protection for overload and short circuit in low voltage distrib...
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04-21 / 2017
DC miniature circuit breaker - small size, great effect!
DC miniature circuit breaker (DZ47Z-63: c45n dc mcb, dc mini circuit breaker) is as the name suggests it is a miniature circuit breaker DC mode, using the DC miniature circuit breaker in life can be very broad, like family, industry, power industry and other fields have found it. So what is a circu...
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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 ...
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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 sud...
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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) conta...
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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...
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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 cir...
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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 c...
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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 pr...
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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...
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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 ex...
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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 o...
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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 sp...
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04-07 / 2017
What is the role of distribution box
Distribution box (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 operat...
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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. Wh...
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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 ove...
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04-02 / 2017
Working principle of AC contactor
1. Introduction The utility model relates to a contactor, which is a device which uses a coil to flow through an electric current to generate a magnetic field to make the contact close. AC contactor as a kind of contactor, the completion of the role of the control load, but also on the basis of the...
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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 ...
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03-31 / 2017
Structural features of Voltage Protector
1. The Voltage Protector (under voltage protection circuit breaker and over voltage protection circuit breaker) 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 boar...
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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 by two circuit breaker. The circuit b...