The main components of the Wiener bus system in the distribution cabinet are composed

According to the different uses of the bus duct, the bus groove is generally composed of the start bus slot, the straight bus slot (no partition jack and jack), the L-shaped straight (horizontal) curve bus, the Z-type straight (horizontal) offset bus, the T-shaped straight (horizontal) tee bus, the X-type straight (horizontal) cross-way bus, the variable ...

The grounding of the DC system should include two situations: the one-point grounding of the DC system and the two-point grounding of the DC system. In the DC system, the positive and negative poles of the DC are insulated from the ground, and when the ground of one pole is generated, there is no grounding current due to the fact that there is no grounding current.

Thorough differential maintenance of the bus is to connect the current transformer of all the connecting elements on the bus to the differential circuit according to the same name phase and polarity, the characteristics and transformation ratio of the current transformer should be the same, if the transformation ratio can not be together, the compensation converter can be used to compensate, satisfactory ΣI=0. ...

In power distribution equipment such as voltage distribution cabinets and switchgear at all levels of power plants and substations, the conductors connected between large electrical equipment such as generators and transformers and various electrical equipment are called busbars. Busbars, also known as busbars, are used to gather, distribute, and transmit electrical energy. The connection methods of the bus bar are ...

1. The plug-in bus duct has strong overload capacity The overload capacity of the bus duct is strong, depending on the high working temperature of the insulation material it uses, and the working temperature of 105 is selected for the insulation data used in the bus duct, and the radiation cross-linked flame retardant winding tape with a working temperature of more than 140 °C has been developed.

The bus duct bracket has to be firmly installed, and the bus duct should be correctly placed according to the segment sequence number, phase sequence, number, direction and device mark, and when the sections are connected, the adjacent section of the bus duct should be aligned, and the conductor and shell of the bus duct should not accept mechanical stress after the connection. ...

The nature is different Busbar: It is a common path on which multiple devices are connected in the form of side-by-side branches. Busway: It is a closed metal equipment composed of copper and aluminum busbars. Different uses Mother...

At present, China has five power supply systems: IT, TT, TN-c, TN-c-s and TN-S. They have their own advantages and disadvantages, and we should choose sensitively according to the actual situation in life. Five power supply systems 1.IT power supply system In a ...

For the use of Siemens' new 3VA1 series circuit breakers in the 30Compact system with currents up to 160A, Wiener has developed an EQUES® bus adapter. A spring-loaded base and high-performance internal power rails ensure safe connection to the circuit breaker. advantage ...

The bus system is a system with standardized bus distance, which is used in low-voltage power supply and distribution switchgear and control equipment, so that the bus can play the effect of conducting electricity and supporting electrical components. The system is divided into 40, 60, 100 and 185mm ...

At the time of the cable tray installation, the wiring is not very convenient. This phenomenon can be avoided by using busway. The 5 advantages of using busway in the cable tray device are as follows: 1. Convenient connection of bus duct: the so-called plug-in bus...

The difference between busbar and cable The busbar is used to gather current. Many power and power supply circuits are connected to the bus, through which the power is gathered and sent to each circuit. Therefore, the current carrying capacity of the bus bar is relatively large, and the current carrying capacity of the bus ...

The continuity of the aluminum alloy bus duct maintenance circuit is related to the PE line, and the crossover PE wire conductor bus of the maintenance conductor and the two-unit bus bar should reach 50% of the phase line, the equivalent cross-sectional area. The continuity resistance of the housing and PE line maintenance circuit is ≤ 0.005 ohm female, and the unit with jumper wire is not less than the maintenance conductor.

The internal bus duct uses high-quality T2 electrolytic copper as the transmission conductor, which has high purity, high conductivity, low loss and small heating, which is very suitable for industrial and mining enterprises that need large current load operations.

1. To carry out work in all and part of the energized panels, the equipment should be overhauled and separated from the operating machinery and equipment with obvious markings. 2. The secondary winding of the voltage transformer and the transformer should have reliable grounding maintenance. 3. On the secondary circuit of the voltage transformer in operation...

The grounding electrode is a discharge channel that connects current or voltage to the earth, and in order to reduce the grounding resistance, the electrodes that form the grounding grid are generally used in groups. The grounding bus refers to the connecting wire that connects the current or voltage to the grounding grid, or the conductor that connects the grounding electrode into one. ...

In the selection, the following elements should be fully considered: fire protection specifications, insulation layer to flame retardant, good temperature resistance, high temperature is not easy to release harmful gases, structure type to avoid chimney effect, should give priority to the use of aggregate insulation layer bus duct, such as the use of air insulation type, it must be in the electric ...

1. Trunk power distribution system, simple wiring and reliable operation. 2. It is convenient to tap, and you can tap without cutting off the main power supply. Large power supply capacity up to 6300A current-carrying capacity. 3. High dielectric strength, strong overload, superior fire performance. Good heat dissipation performance, low impedance ...

The busway is one of the more critical components in the power system, and it is an important part of connecting cables to important equipment such as substations, overhead lines, transformers, circuit breakers, etc. It is widely used in various power systems, mainly for the reliable operation of power systems. ...

1. Bus system 1 The bus adapter used in bus system 1 is more miscellaneous, and -Q1 selects a bus type blocking switch that can be directly attached to the bus; -Q11 is a 3VL2 switch, select an appropriate universal adapter to hook up to the bus; The 3-pole switch-Q12——-Q15 is less than 63A, but ...