Selection of the color of the conductor of the high and low voltage switchgear - LS power production

(1) Tripping LS electric molded case circuit breaker basically involves the tripping unit in the process of practical application, and the tripping is generally a thermomagnetic tripping or electronic tripping, and we must also understand this different tripping method in advance. In practice the application ...

Features of SUSOL series circuit breakers: It can be used as the main switch of electrical equipment, and the limit breaking ability is high, Icu=Ics Modular construction of circuit breakers: Tripper replacement (TS series) can be combined in a variety of combinations, such as ...

1. No-load energizing test of inverter 1. Ground the grounding terminal of the inverter. 2. Connect the power input terminal of the inverter to the power supply through the leakage maintenance switch. 3. Check whether the factory display window of the inverter is normal, if it is incorrect, it should be reset.

Thermal Overload Relay GTH-22 GTH series: GTH-22, GTH-40, GTH-85, GTH-100, GTH-150, GTH-220, GTH-400、GTH-600、GTH-12M、GTH-12MH、GTH-12M、GTH-MH GTH series: GTH-22, GTH-40, GTH-85 ...

1. Improper device: The motor is not concentrious with the equipment being dragged, resulting in excessive radial load on the motor, which eventually leads to metal exhaustion. When the radial load on the extension end of the motor shaft is too large, it will cause the motor shaft to have zigzag deformation in the radial direction. When the motor rotates, the shaft's ...

After we have selected a suitable Variable-frequency Drive (VFD), we also need to consider whether we need to equip other peripheral equipment according to the actual situation of the site. The peripheral equipment selected by VFD mainly includes circuit breakers, reactors, contactors, braking resistors, etc. ...

The protection of the motor by the power converter mainly includes the following aspects: overvoltage protection, undervoltage protection, overcurrent protection, phase loss protection, inverter protection, overload protection, grounding protection, short circuit protection, overfrequency protection and stall protection. ...

When the main circuit of the inverter is connected to the power line, in order to control the operation of the motor, it is also necessary to connect the relevant terminals to the peripheral control circuit, and set the parameters of the inverter's starting method to the external operation form. The inverter controls the motor to run, and there are two common methods, which are to turn on the ...

1. As soon as the inverter of the heat exchange station is opened, the pressure transmitter jumps randomly; 2. Use the inverter to control the water supply, the pressure transformer is used as the signal to collect the pressure, and the pressure transformer is disturbed by the inverter; 3. When the inverter starts the motor, the voltage converter signal is unstable and beats violently; 4. Pressure transformer (4-20 ...

The quality of the control circuit determines the function of the LS inverter. The function of the DC central circuit is to smooth the output of the rectifier circuit to ensure that the inverter circuit and the control power supply can obtain a high-quality DC power supply. When the whole ...

1. Air conditioning load Office buildings, shopping malls and some supermarkets and factories have central air conditioning, and the electricity consumption of air conditioning is very large during the peak electricity consumption in summer. In hot weather, the electricity consumption of air conditioners in Beijing, Shanghai and Shenzhen accounts for more than 40% of peak electricity. Therefore, with inverter equipment, drag the air conditioning system ...

1. Confirm the location of the device Before the equipment switches on and off the power supply, it is necessary to confirm the location of the equipment, and generally require the equipment to be in a ventilated, boring, non-corrosive gas and dust-free place. 2. Equipment holder The fixed base of the switching power supply is fixed on the orientation of the equipment, and the general ...

Rated current of LS molded case circuit breaker: Now in the process of using molded case circuit breakers, it is necessary to understand the rated current of molded case circuit breakers, and the rated current of molded case circuit breakers generally has more than a dozen, mainly 16A, 25 A, 30A, and the high may reach 630A. ...

Due to the "new infrastructure" policy, the Chinese government has vigorously promoted the new energy and ESS markets, and according to CNESA, the cumulative electrochemical energy storage scale in China will reach 19.3GW in 2023, which is expected to exceed 20% of the global market. June 3 ...

In the course of regularly checking the variable-frequency drive (VFD) of the tensile testing machine, we can visually check the operating status directly from the outside. (1) The ambient temperature is normal, and it is required to be between -10°C and +40 ...

(1) Tripping LS electric molded case circuit breaker basically involves the tripping unit in the process of practical application, and the tripping is generally a tripping method of thermomagnetic tripping or electronic tripping. In the process of practical application, if it is a ...

First, the power supply problem 1. The power supply voltage is too high When the power supply voltage is too high, the motor back electromotive force, magnetic flux and magnetic flux density all increase. Since the magnitude of the iron loss is proportional to the square of the magnetic flux density, the iron loss increases, resulting in overheating of the core. And the increase in magnetic flux causes ...

The two wires are connected to the resistor, and the other wire is connected to the adjustment terminal. The red thread is attached to the blackhead and inserted in a small hole. Connect both ends of the IR potentiometer to +10V and ACM, and slide the termination to the voltage input terminal AVI. ...

1. Energy consumption type This method is to connect a braking resistor in parallel in the DC circuit of the inverter, and control the on/off of a power tube by detecting the DC bus voltage. When the DC bus voltage rises to about 700V, the power tube is turned on, and the regenerative energy is passed into the resistor.

Although many names such as relays, timers and counters are often used in the ladder diagram programs used by LS PLC, LS PLC does not have these hardware physically, but uses memory and program programming to do logic control and editing, and connects to external machines through output components.