(1) The additional operating voltage of the circuit breaker ≥ the additional voltage of the line. (2) The additional current of the circuit breaker ≥ the line load current. (3) The additional short-circuit of the circuit breaker can be turned on and off to ≥ the maximum shortness that may be present in the line.

1. The safety wire is blown off In a general environment, a blown safety wire indicates that there is a problem with the internal wiring of the power supply. Because the power supply is operated in the shape of high voltage and high current, the fluctuation of the grid voltage and the surge city cause the current in the power supply to increase suddenly and cause the safety wire to be blown off. The focus should be on checking the power ...

1. Frequency conversion speed regulation and energy saving. The inverter frequency conversion speed regulation and energy saving are mainly manifested in the application of fans and pumps. In order to ensure reliability in actual production, all kinds of production machinery are designed with power drives, and there is a certain margin. After turning down the motor rotation when there is no need to run at full speed in production, ...

Contrasting method The specific method is to let the problematic meter and the normal meter operate under the same conditions, and then detect the signals at some points and compare the two sets of signals measured, if there are differences, you can conclude that the fault is here. This method requires maintenance personnel to have considerable knowledge and skills.

In the process of practical speed regulation, an ordinary frequency-adjustable communication power supply can not meet the requirements of speed regulation and control of asynchronous motors, and must also take into account the effective use of the motor magnetic field, the suppression of the starting current and the acquisition of the desired torque characteristics, such as low-frequency torque characteristics.

(1) Gain Parameter: The share gain of the speed manipulator. If the gain is too large, it may cause the speed to fluctuate. (2) Integration time parameter: the integration time of the velocity manipulator, that is, the deviation step signal ...

1. It can reduce the impact on the power grid, and there will be no problem of excessive peak-to-valley difference. 2. It can speed up the controllable function, and then speed up the slipping according to the needs of the user; 3. The abort mode of the motor and equipment is controllable, ...

1. The pressure of Delixi inverter system is unstable and easy to vibrate? Answer: The pressure of the system is unstable, which may be due to the following reasons: A. There is a problem with the direction of the pressure of the pressure sensor acquisition system, and the pressure collection point is too close to the water outlet of the water pump, and the pressure of the pipeline is affected by the water outlet ...

Delixi built-in bypass soft starter CDRA-K3 series is a set of soft start, soft parking and multi-functional protection in one of the motor control equipment. Realize a smooth starter motor without impact during the entire starting process. CDRA-K3 series has built-in bypass contactor and control power supply.

　　The principle and operation method of Delixi inverter: 1. No-load energizing test of inverter 1. Ground the grounding terminal of the inverter. 2. Pass the power input terminal of the inverter through the leakage maintenance switch.

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. A variety of starting methods Current limiting soft start, voltage ramp soft start, ramp plus current limiting soft start. 2. High reliability Signals in the control system are digitized by high-performance microprocessors. ...

1. The pressure of Delixi inverter system is unstable and simple vibration? Answer: The pressure of the system is unstable, which may be due to the following reasons: A. There is a problem with the orientation of the pressure of the pressure sensor collection system, the pressure collection point is too close to the water pump outlet, and the pipeline pressure is affected by the water outlet ...

1. Upper frequency (high speed) SEt - HSP and lower limit frequency (low speed) SEt - LSP The upper frequency is the frequency corresponding to the *** large given, and the lower frequency is the frequency corresponding to the *** small given. The upper and lower limit frequencies are set to limit the speed of the motor, so as to satisfy the design.

Delixi Electric launched a new "product intelligence" series of products, with outstanding quality and higher cost performance of professional competitiveness, to meet the green consumption demand for low-voltage electrical appliances in the field of construction and real estate, and promote China's low-voltage electrical profession into a new green development era. This "product wisdom" ...

Delixi intelligent all-round circuit breaker CDW9 series, should be checked regularly every year, first open and close and long-distance equipment, successively use a variety of additives, test operation program column, control unit test using a small test suite; Every two years or when the control unit repair target reaches 100, it should be ...

In view of the regulation and control effect of the transformer in the power system, technicians need to choose the appropriate transformer finishing device operation, so as to play a normal effect. Winding data is the primary problem that transformer devices need to pay attention to, and the effects of devices of different materials are different. Concerning...

Problem depiction: Delixi inverter controller data flying, or the data is occasionally incorrect, how to solve? Solution(s): This is the result of severe disturbances to the controller. Frequently...

The fuses should be installed on the lines of each phase. It is strictly forbidden to install fuses on the neutral line of the two-phase three-wire or three-phase four-wire circuit. Fuses are mainly used for short-circuit maintenance. When the fuse is used for blocking purposes, the fuse must be installed.

On January 27, the "4th China Electrical Appliance Culture Festival and World Electrical Products Expo" was grandly opened in Liushi, Wenzhou, the capital of China's electrical appliances. More than 500 companies from home and abroad showed their faces on more than 1,400 booths. The largest Delixi exhibition hall with a booth area of more than 1,800 square meters ...

Delixi is one of the world's top 500 enterprises, the quality of its switches is excellent, the layout is reasonable, and is deeply liked by the majority of customers. Founded in 1984, China Delixi Holding Group Co., Ltd. is a large-scale group integrating capital operation, brand operation and industrial operation, with a registered capital of 15 ...