Delixi control transformer structure type

Application of air switches (circuit breakers). Delixi air switch, also known as circuit breaker. It is a switch that actively closes as soon as the current in the circuit exceeds the additional current. Air switch is a very important electrical appliance in the low-voltage distribution network and electric traction system.

1. For pure resistive loads such as incandescent lamps, resistance wires, electric furnaces and other equipment, the power of the voltage regulator should be 1.5 times the power of the load equipment - 2 times that of the load equipment, for example, if your electric furnace is about 250W, you can choose a voltage regulator with a power of 500W. 2. Rationality ...

During opening and closing operations, the remote opening and closing command is usually a high-level pulse of several hundred milliseconds. In order to prevent the pulse from becoming invalid before the end of the opening and closing operation, and to ensure that the opening and closing operation is completed, a holding circuit is added. Intuitively, it is to avoid tripping and closing, and the exit contact precedes the DL ...

In most large electrical systems, generators and power transformers are the two most expensive pieces of equipment. In addition to the capital cost of purchase, the continuity and reliable operation of these two key equipment systems are also the most critical. For example, the test ...

We are able to compare the values of resistance and hose diameter (conductance vs. practical diameter). When it comes to metal wires, this analogy works well. Small-diameter wires have a higher resistance than large-diameter wires made of the same metal. The standard unit of resistance is ohms, there are ...

First, press the "Cancel Recovery Button" 4 times in a row; Then adjust the clock (the factory has been adjusted), if you need to adjust it again, press and hold the "clock key" together, and then press the "school week, time key, school minute key" to adjust the Beijing time. ...

1. If the two branch lines are connected, the current in the zero line flows to each other, which destroys the operating current balance in the zero sequence current transformer and causes the leakage maintainer to malfunction. If you want to use the neutral line of the power branch line as the neutral line of the lighting branch line nearby, it will cause the leakage of the power branch line.

Look at the quality of the surge protector, to see whether it can complete his basic specification, relative to the surge protector of the primary specification is whether the surge operating voltage can be constrained below the required value, the surge protector must discharge the lightning current when the mission is completed, this specification must be completely completed.

1. Failure analysis. 1) Closing fuse, control fuse blowing or poor contact. 2) Poor contact of DC contactor or poor contact of control switch contact and auxiliary contact of circuit breaker. 3) The DC voltage is too low. 4) Closing and locking action. ...

1. The role is different The air switch is a kind of circuit breaker that protects the "object", which can protect the safety of the entire household wiring and electrical appliances and other items to prevent the wire from being burned due to overheating. The leakage protection switch is a kind of circuit breaker that protects "people", which can be cut in time when leakage.

The correct selection of the inverter is very important for the normal operation of the control system. When selecting an inverter, it is necessary to have a thorough understanding of the load characteristics driven by the inverter. In practice, people often divide production machinery into three types: constant torque load, constant power load and fan and pump load. ...

The control of the inverter is nothing more than the basic logic of starting, aborting, forward rotation, rotation, and speed regulation, which basically requires that the level condition is useful, not the rising margin is useful, so the use of button switches to control the inverter is generally required to use the button in the form of self-protection ...

Delixi Electric's newly launched CDQ1F series PC-level excitation active transfer switch, with more complete specifications and stronger functions, the power-off time can be shortened to less than 0.1s, escorting the continuous use of electricity in important places! CDQ1F Active ...

Class I refers to the circuit breaker, which is only used for maintenance and not for normal operation; The other is that circuit breakers are required together for maintenance and infrequent operation. In the latter case, the operating conditions and electrical life should be taken into account. The selection principles for circuit breakers for motor maintenance are as follows: ...

In the project, because of the 630 A circuit breaker wiring bar in the 500 kVA box-type transformer, see the second circuit breaker and circuit breaker on the left in the figure. The temperature of this corresponding region is significantly higher than that of the other two corresponding regions, and the other two phases are also hot, and the copper bars of this phase have turned white. There is no induction Deli ...

The circuit breaker insulation incident can be divided into the internal insulation terminal and the external insulation incident. The hazards caused by internal insulation incidents are generally greater than those of external insulation. (1) Internal insulation incidents The internal insulation end is mainly a bushing and a current transformer ...

The switching voltage regulator is a different kind of regulated power supply from the linear voltage regulator, and its circuit types mainly include single-ended flyback, single-ended forward, half-bridge, push-pull and full-bridge. The difference between it and the linear power supply is that the transformer in the circuit does not work at the power frequency, but at the power frequency.

1. Voltage circuit breaker problem The contact is overheated, you can smell the power distribution control cabinet, by checking that the moving contact is not completely inserted into the static contact, and the contact pressure is not enough, resulting in a decrease in the switching capacity, causing the contact to overheat. At this moment, it is necessary to adjust the operating organization so that the moving contact is completely inserted into the static contact ...

Thermal accounting requires information such as power loss, thermal resistance of the package, and ambient temperature. The power loss is calculated in the same way as the efficiency accounting, which is simply the value of the difference between the output input voltage and the input current. Thermal resistance should have a technical standard documented, and if it is not available, it is necessary to consult the manufacturer. Basically...

Requirements for electrical barriers. Between A and B circuits, signal transmission is required, but because of the disparity between the power supply levels of the two circuits, one is hundreds of volts, and the other is only a few volts; Two very different power supply systems, unable to share the power supply; ...