সংবাদ প্রতিবেদন
সংবাদ
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09-13 / 2017
What is the difference between ac contactor and circuit breaker?
The circuit breaker can extinguish the arc and has the ability of subsection to protect the circuit. The contactor uses the coil to control the circuit to break, when the contactor is energized, the normally open is closed, and the long closed is closed, so that it can be controlled. 1. The miniatu...
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09-12 / 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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09-11 / 2017
Fault checking of control protective switch
The control protective switch is composed of several parts, and some components can be added according to the requirement. Its function is to eliminate the surge voltage and interference signal in the power, so that it can improve the quality of the power supply. The fuse tube can be fuse when the ...
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09-09 / 2017
What are the advantages of waterproof distribution box?
A kind of common distribution box is waterproof distribution box, of course, many people also call it rainproof distribution box, waterproof distribution box is mainly used in the outdoors, to prevent some bad weather, so from this Point you can see the waterproof distribution box must have the fun...
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09-08 / 2017
Structure and principle of miniature circuit breaker
As a kind of over current protection device, miniature circuit breakers can be used to switch indoor wiring with current control switch, can effectively protect the important components of the electrical, mainly used for short circuit protection and prevent serious overloading, motor load protectio...
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09-07 / 2017
Selection and maintenance of AC contactor
1. Selection: (1) The rated current of the main circuit contact shall be greater than or equal to the rated current of the controlled device. The motor contactor of the control motor shall also take into account the starting current of the motor. In order to prevent the frequent operation of the co...
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09-06 / 2017
How to realize the intelligence of molded case circuit breaker?
It is necessary to break through the technical problems of intelligent molded case circuit breaker. The first technical problem is the realization of perceptual functions. This is the basis of intelligence, the realization of the function of the need to obtain such as voltage and current, insulatio...
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09-05 / 2017
Classification of AC contactor wiring
There are many kinds of wiring for AC contactor from electrical ac contactor manufacturers, and their classification methods are different. According to the general classification method, there are approximately the following. (1) According to the pole of main contacts, it can be divided into singl...
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09-04 / 2017
How to choose AC / DC contactor correctly
1. Select the type of contactor from electrical ac contactor manufacturers Alternating current contactor shall be used for AC load and DC contactor shall be used for DC load. If the control system is mainly AC motor, and DC motor or DC load capacity is relatively small, can also be used AC contact...
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09-02 / 2017
What is AC contactor?
Contactor form electrical ac contactor manufacturers is a kind of intermediate control element. It has the advantage of frequent switching on and off, and controlling high current with small current. With the thermal relay work, but also to the load equipment to play a role in overload protection. ...
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08-31 / 2017
Installation of Load isolation switch
Installationof Load isolation switch: In general, the installation of the load disconnect switch and isolation switch installation is roughly the same, but in the adjustment, the need to note the following: (1) The main blade and the auxiliary blade of the load disconnecting switch should be in the...
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08-26 / 2017
Multimedia distribution box
The multimedia distribution box is a kind of multimedia information input various information network system, the electrical properties and extend the system by the way of wiring, change the configuration of the system, adjust the number of cable system using the function to meet the requirements o...
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08-25 / 2017
The multimedia distribution box fundamentally changes the wiring in residential homes
The installation height of the multimedia distribution box and information panel is generally located from the ground 300mm embedded wall, or positioned according to the design requirements of the home decoration. The panel can be 86*86mm, Z or 120*70mm. It can also be decorated according to the st...
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08-23 / 2017
What is the principle of under and over voltage protection protector?
Under and over voltage protection protector control circuit adopts high speed low power micro processor design as the core, the magnetic latching relay main circuit, modular double standard, when the power supply line overvoltage, undervoltage protection, to continue to shock quickly and safely cut...
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08-21 / 2017
Multimedia distribution box is the development trend of home decoration
Multimedia system refers to television, telephone, computer network, multimedia center, electronic automatic alarm system centralized control device design, namely the family by these cable connection devices can be controlled by a centralized equipment. The general multimedia system is mainly comp...
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08-19 / 2017
Two control modes of electrical transfer switch are analyzed
Double power electrical transfer switch is mainly used for two power supply (electric supplyto electric supply, electric supplyto electricity generator etc.) the automatic and manual switching operation, the general practice is set to double power supply automatic switching operation mode, to ensur...
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08-17 / 2017
Advantages of plastic meter box (transparent electric meter box)
The new plastic meter box (transparent electric meter box) not only reads the ammeter well, but also is elegant and safe and practical. In the spirit of "you use electricity, I attentively" service concept, in this year's rural power network transformation and upgrading project, all the old "iron m...
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08-15 / 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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08-14 / 2017
The difference between the over voltage and under voltage protection devices and the circuit breaker
It is often said that if there is no overvoltageandundervoltageprotectiondevices, we can use the circuit breaker instead. So many users to listen to this method, with a circuit breaker instead of over-undervoltage protection to protect the electricity load, the results more harm than good, househol...
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08-11 / 2017
Matters needing attention in installation and use of plastic meter box or electric meter box
Matters needing attention in installation and use of plastic meter box or electric meter box 1. Please carefully check the meter box parts in the installation. 2. Installation location should be selected without severe vibration, the impact is not enough to damage the electrical components of the p...