￥ 25000.00 元/台 最小采购量：至少100台 Price: ￥ 25000.00 per unit Minimum purchase quantity: at least 100 units
腾辉 Brand: Tenghui
湖北襄阳市樊城区 Location: Fancheng District, Xiangyang City, Hubei
旷工，化工，医疗泵站，等 Application areas: absenteeism, chemicals, medical pumping stations, etc.
简单操作，起动电流小 Product selling point: simple operation, low starting current
是用于额定电压 3 ～ 10KV 的大中型鼠笼式异步电机或同步电机的软起动设备，其工作原理是在电机的定子回路串入一特制的可控液态电阻，随着电机的起动，液态电阻的动、定极板间距离自动改变阻值平滑减少，起动电流维持在额定电流的 3.5 倍以下，起动结束后，液态电阻自动切除，起动过程对电网无 冲击，无谐波污染。 TRG water resistance cabinet is a soft starter for large and medium-sized squirrel-cage asynchronous motors or synchronous motors with a rated voltage of 3 to 10KV . Starting, the resistance of the liquid resistance and the distance between the pole plates are automatically changed and the resistance value is smoothly reduced. The starting current is maintained below 3.5 times of the rated current. After the start, the liquid resistance is automatically cut off. The starting process has no impact on the power grid and no harmonics. Pollution.
自藕变压启动器和高压电抗启动器的冲击电流大、难启动和操作不便等问题 ,广泛用于建材、冶金、化工、矿山等工业部门的空压机、破碎机、大型风机、大型水泵等绕线式异步电机的轻载起动。 TRG water resistance cabinet overcomes the problems of large shock current, difficult to start and inconvenient operation of self-propelled transformer starter and high-voltage reactance starter.It is widely used in air compressors and crushers in industrial sectors such as building materials, metallurgy, chemical industry, mining, etc. Light-duty starting of wire-wound asynchronous motors, such as large fans, large pumps, etc.
软起动的好处 First, the benefits of soft start
1. Make the motor output torque meet the requirements of the mechanical system for the starting torque, ensure smooth acceleration, smooth transition, and avoid destructive torque impact.
2. Make the starting current meet the requirements of the bearing capacity of the motor, and avoid damage to or damage to the insulation caused by the starting heat of the motor
3. Make the starting current meet the requirements of power grid quality standards, reduce the temporary voltage amplitude, and reduce the content of higher harmonics.
、 技术参数 Technical parameters
Starting current: 1.5 ~ 3.5 times rated current
Starting time: 20 ~ 60S
Starting times: 2 ~ 3 times
Starting pressure drop: 8%
Water tank thickness: 14 ~ 16mm
Communication interface: RS485
Protection functions: over-current, over-temperature, low liquid level, start-up timeout
Motor power (KW)
Dimension W * D * H (mm)
Starting temperature rise (℃)
Star Point Cabinet
TRG-500 / □□
1500 * 1200 * 2000
TRG-1000 / □□
500 ~ 1000
1500 * 1350 * 2300
TRG-2000 / □□
1000 ~ 2000
1600 * 1550 * 2300
TRG-3000 / □□
2000 ~ 3000
1000 * 1200 * 2650
TRG-5000 / □□
3000 ~ 5000
1450 * 1450 * 2650
TRG-8000 / □□
5000 ~ 8000
1600 * 1650 * 2650
TRG-10000 / □□
8000 ~ 10000
1800 * 2250 * 2800
TRG-15000 / □□
10000 ~ 15000
2000 * 2500 * 2800
TRG-20000 / □□
15000 ~ 20000
2000 * 2500 * 2800
□ ”表示适配电机额定电压，第二个“ □ ”A表示星点可打开，B表示星点不可打开，T同步电机。 The first “ □ ” in the model indicates the rated voltage of the adapted motor, the second “ □ ” A indicates that the star point can be opened, B indicates that the star point cannot be opened, and T is a synchronous motor.
Four, one-time plan
High-voltage cage motor electro-hydraulic starter, referred to as TRG water resistance cabinet. After the commissioning is completed, each electrode plate is immersed in water, and the electrolytic powder according to calculation is added to the water. Before starting, the upper plate is at the top. When starting, the upper plate is driven down by the lifting motor (some settings are down for a few seconds, stop for a few seconds, continue to move down, and repeat). When the resistance value decreases, the voltage at the motor end gradually changes from low to high. When the upper pole plate moves to the lowest limit, the start is completed. When the motor is continuously started, the difference in starting characteristics will not be very large, but the water resistance maintenance amount of the servo motor and other components will slightly increase.
The picture shows the internal structure of the TRG water resistance cabinet. The upper part of the cabinet is electrical components, and the lower part of the cabinet is the water resistance box. It is the liquid resistance.
Our water tank is 14mm thick . It is made of imported high molecular polytetrafluoroethylene, high temperature resistant, and welded with plastic plates. It is three rectangular boxes of the same size. Use high-quality materials, with corrosion resistance, can hold strong alkali solution; with good insulation, under the condition of full electrolyte, the pressure can reach 42KV; high temperature, can ensure that the water tank does not deform at 160 ℃ , The service life can be up to 20 years. The bottom of each water tank is fixed with a static pole plate. The outer pole of the terminal plate of the static pole plate adopts a well-known brand high-voltage heat-shrinkable insulating sleeve to ensure reliable insulation between the poles and long-term normal use of the equipment.
The upper part of the liquid resistance is equipped with a sealing device and a decompression chamber system. Under the condition that the entire cabinet is well sealed, the steam generated during the use of the system does not stay in the cabinet, so as not to affect the interior of the cabinet and electrical parts, and the temperature rise Effectively release pressure when high, ensuring the safety of the equipment.
The electrical part provides the following protection functions
Resistance liquid temperature protection, namely over-temperature protection, adopts digital display temperature measurement system, which has the advantages of accurate temperature measurement, safety and reliability. The temperature is higher than 70 ° C, which ensures reliable operation and cuts off the main circuit of the high-voltage operation cabinet. If the protection is activated before starting, the main motor will not start.
The starting delay protection is activated when the starting time exceeds the setting time of the time relay, thereby cutting off the main motor stator power and preventing the starting current from impacting the motor for a long time.
Resistance liquid level protection is protection that prevents the resistance liquid level from lowering to affect the starting performance. This protection works before starting, the motor cannot start, and the action can reliably cut off the motor stator power during the starting process.
The function of cutting off the high-voltage power supply after the start of the water resistance is to disconnect the high-pressure water tank from the high-voltage power supply through the two high-voltage vacuum contactors of the starter cabinet to ensure the service life of the high-pressure water tank and reduce the service life of the water tank due to long-term power , Causing hidden dangers.
Five, installation requirements
6. Notice to users
1. The applicable motor of TRG water resistance cabinet is high-voltage cage motor. Please select TRD water resistance cabinet for low voltage cage motor and TRQ water resistance cabinet for winding motor.
2. The user provides the motor model, rated power, rated voltage of the stator, rated current of the stator, stator winding connection, whether the star point can be opened, and the load characteristics of the motor.
3. If the star point short-circuit switch is a vacuum circuit breaker or home differential protection, when the rated power of the motor exceeds 2000KW, an additional star point cabinet is required.
4. The user can choose to adopt PLC control and communicate with the host computer through the RS485 port to meet the requirements of the DCS control system.
5. The use environment temperature is below 0 ℃ for a long time, and it is necessary to increase the electric heating device.