SYZ type self coupling step-down starting water pump control cabinet
SYZ type self coupling step-down starting water pump control cabinet
Product Overview
SYZ type self coupling step-down control cabinet is carefully designed and manufactured by the company after years of production and application, continuous perfection and optimization by fully absorbing the advanced experience of water pump control at home and abroad. The product has a variety of fully functional status displays such as overload, short circuit, phase loss protection, pump body water leakage, motor overtemperature and leakage, as well as single pump and multi pump control working modes, a variety of main and standby pump switching modes and various starting modes. It can be widely used for automatic control of water supply, drainage, fire control, pressurization of spray pipe network, HVAC, cold water and hot water circulation in agricultural production and various buildings.
With the development of society, in order to meet the market demand, Chongqing Zhongbai pump industry has reasonably selected famous brand electrical components at home and abroad on the basis of absorbing advanced technology at home and abroad, and developed high-tech products with the level of the 21st century, man-machine interface control cabinet. In addition to the advantages of ordinary electrical control cabinet, the product also has the advantages of convenient management, higher accuracy and less failure rate in control. Through many experiments, our company has been put into use in Shanghai electrode factory and achieved gratifying results.
Jjk series water pump control cabinet has excellent quality, beautiful and durable appearance and convenient installation and operation. It is a safe and reliable partner for all kinds of water pumps and fans.
SYZ type self coupling step-down starting water pump control cabinet -- product features
1. Energy conservation
Compared with the traditional control motor, the energy saving of the self coupling step-down control motor is of the most practical significance. The working condition of the motor supplied according to the demand of water injection and oil delivery is economic, which can save 48.8% of electricity.
2. Operation cost reduction the operation cost of traditional motors consists of three items: initial procurement cost, maintenance cost and energy cost. Among them, the energy cost accounts for about 77% of the motor operation cost. By reducing the energy cost by 44.3%, coupled with the reduced impact on the equipment after variable frequency starting, the amount of maintenance and repair will also be reduced, so the operation cost will be greatly reduced.
3. The frequency conversion control system has the ability of accurate pressure control. Match the pressure output of the motor with the water injection required by the system. The output of variable frequency control motor changes with the change of motor speed. As the accuracy of variable frequency control motor speed is improved, it can keep the system pressure change of pipe network within 3pisg variation range, that is, 0.2bar, which effectively improves the quality of working conditions.
4. Prolong the service life of the motor. The frequency converter starts the motor from 0Hz, and its starting acceleration time can be adjusted, so as to reduce the impact on the electrical and mechanical parts of the motor during starting, enhance the reliability of the system and prolong the service life of the motor. In addition, the frequency conversion control can reduce the current fluctuation during unit starting, which will affect the power consumption of power grid and other equipment. The frequency converter can effectively reduce the peak value of starting current to the minimum.
5. The noise of the motor is reduced. According to the working condition requirements of the motor, after the frequency conversion speed regulation is installed, the running speed of the motor is significantly slowed down, so the noise during motor operation is effectively reduced.
SYZ type self coupling step-down starting water pump control cabinet -- functional principle
One control two: control two water pumps 1 and 2. No. 1 and No. 2 pumps operate at the same time. When starting, after the No. 1 pump starts, the No. 2 pump will start automatically through the time relay.
One control and three control consoles: No. 1, No. 2 and No. 3 water pumps. The working mode is the same as above.
One for use and one for standby: control two water pumps 1 and 2. It can work in "No. 1 main and No. 2 standby" or "No. 2 main and No. 1 standby".
Two for use and one for standby: control three water pumps 1, 2 and 3. It can work in three ways: "No. 1, No. 2 main and No. 3 standby", or "No. 2, No. 3 main and No. 1 standby", or "No. 1, No. 3 main and No. 2 standby".
Three for use and one for standby: control four water pumps 1, 2, 3 and 4. It can work in "1, 2 and 3 main and 4 standby" or "2, 3 and 4 main and 1 standby" or "1, 3 and 4 main and 2 standby" or "1, 2 and 4 main and 3 standby".
The above modes are equipped with manual function at the same time. In the manual state, each pump can work independently.
SYZ type self coupling step-down starting water pump control cabinet -- Instructions
1. When installing the wiring, it must be connected in strict accordance with the schematic diagram of terminal blocks at the letter symbol level. After completion of the connection, carefully check whether the wiring is wrong, and then check whether the actual capacity of the controlled motor is consistent with the capacity controlled by the product. If not, refer to the data listed in each parameter table to reset the current, current action value and protection delay setting value of time conversion device, and thermal relay setting value.
2. Manual operation: when the power is supplied, the power indicator light will be on, turn the function switch to the manual position, turn on the control switch of each sub pump (the switch corresponds to each group of water pumps), turn the water pump operation selection switch to the required position (i.e. select the main pump and standby pump), press the start button, the motor will start, the start indicator light will be on, and when the starting current drops to 1. When the rated current is 5 times, the motor will automatically switch to full voltage operation state, and the working indicator light will be on. Press the stop button, the motor stops working and the stop indicator light is on. If the current conversion multiple is found to be inaccurate during startup, it shall be adjusted on site according to the actual situation. If some control circuits are converted by time relay, observe the time required for the ammeter to reduce the current to 1.5 times the current from starting to motor, and reset the time setting value of time relay.
3. Automatic operation: close the automatic air switch, select the main pump and standby pump, turn the function switch to the automatic position, and turn on the switches of each sub pump. The water pump controller will automatically start the main pump or put the standby pump into operation or stop the operation of the water pump according to the liquid level and through the change of the position of the float switch
4. Fault: when the water pump fails, such as motor overload, phase loss, overtemperature and water leakage of the pump body, the product automatically cuts off the power supply of the motor, terminates the motor operation, and gives corresponding instructions for various faults. If the mutual standby controller is used, the standby pump will automatically switch into operation after any group of main pumps fails.
5. During the starting process of the motor, the operator must monitor whether the controller enters the operation state after starting, so as to avoid damage to the autotransformer and motor caused by too long starting time. For the infrequent water pump controller, such as controlling fire fighting, spray pump and other types of water pumps, it shall start operation and inspection regularly.
6. The autotransformer of the autotransformer step-down starting cabinet is allowed to be started twice continuously from the cold state, with each starting time of 15s and the minimum interval of 20s. The time of autotransformer step-down starting can be adjusted through the time relay according to the power of the motor. The adjustable range of delay time is 15-120s
Schematic diagram of step-down water pump self coupling control cabinet SYZ
