TGRK Series Medium and High Voltage Reactance Soft Starter Cabinet
Classification:
1. Overview
The TGRK series high-voltage reactance soft starter cabinet is a step-down soft starter equipment used for large and medium-sized squirrel cage motors or synchronous motors with the rated voltage of 3-10kV. It is a reactor that is connected in series in the stator circuit of the motor to adapt to the motor power, achieving step-down starting. During the starting process, the starting current is maintained at 4-5 times the rated current. After the start is completed, the reactor will be automatically switched off, and the starting process has no significant impact on the power grid.
2. Performance Features
◆ The coil is cast with epoxy resin and has advantages such as flame retardancy, self-extinguishing, maintenance free feature, high mechanical strength, strong resistance to short circuit impact, good insulation strength, small partial discharge, and long service life;
◆ The manufacturing technology of dry reactor has been adopted for the iron core, featuring low vibration, low noise, and low magnetic leakage;
◆ Suitable for environments with an altitude not exceeding 1000 meters; ambient temperature: -25~45 ℃; the relative humidity shall not exceed 90%;
◆ The starting current is 4-5 times the rated current. The starting time is adjustable from 20 to 60 seconds, and it can be started continuously for 2-3 times;
◆ The overall structure of the product is compact, with small installation dimensions and small space occupation;
◆ Smooth start without impact, with a starting voltage drop of less than 10%, which has little impact on the power grid;
◆ PLC control can be used to communicate with the upper computer through RS485 interface, meeting the requirements of DCS control system.
3. Model Description

4. Performance Parameter Table
| Item | Functions and Indicators |
| Applicable motor voltage | 3kV-10kV (special design for 11kV motors is required) |
| Applicable motor power | 200kW~3200kW |
| Starting current | 4-5 Times rated current |
| Running mode | After the soft start is completed, the bypass contactor is engaged |
| Number of starts | 2-3Times/hour |
| Starting features | No great mpact on the power grid |
| Soft starting time | 20~60s adjustable |
| Protection rating | IP20/IP40 |
| Overall structure | Compact overall structure, with small installation dimensions and small space occupation |
| Protection and Monitoring | PLC control can be used to communicate with the upper computer through RS485 interface, meeting the requirements of DCS control system |
| Operating environment | The altitude shall be no more than 1,000m; The upper limit is 45 ℃ (the average temperature within 24 hours shall not exceed 35 ℃), and the lower limit is -25 ℃; The relative humidity shall not exceed 90%; The installation site shall be free of conductive dust or corrosive gases. |
5. Parameters for Selection
| Model | Nominal voltage (kV) | Output power (kW) | Dimensions W*D*H(mm) |
| TGRK-500/6 | 6 | ≤500 | 1100*1500*2300 |
| TGRK-1000/6 | 6 | 1000 | 1200*1500*2300 |
| TGRK-1500/6 | 6 | 1500 | 1200*1500*2300 |
| TGRK-1800/6 | 6 | 1800 | 1200*1500*2300 |
| TGRK-500/10 | 10 | ≤500 | 1100*1500*2300 |
| TGRK-1000/10 | 10 | 1000 | 1200*1500*2300 |
| TGRK-1500/10 | 10 | 1500 | 1200*1500*2300 |
| TGRK-1800/10 | 10 | 1800 | 1200*1500*2300 |
| Special design is provied in case of ≥2000kw | |||
6. Primary Plan Diagram (this diagram is a standard version and can be customized according to actual situations)

7. Instructions for Ordering
◆ Users must provide the motor model, rated power, rated voltage, rated current, and load characteristics of the motor when placing an order;
◆ In case of special requirements, the products can be designed separately and can match with our high-voltage switchgear and TGWB high-voltage capacitor compensation cabinet.
Key words:
TGRK Series Medium and High Voltage Reactance Soft Starter Cabine
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