Xian Putai Electric Motor Equipment Co., Ltd. is one of the leading manufacturers and suppliers of trq liquid mv soft starter in China. If you're going to buy CE approved trq liquid mv soft starter, welcome to get pricelist from our factory. All customized products are with high quality and low price.
TRQ High-Voltage Wound-Rotor Motor Electro-Hydraulic Starter

- The TRQ high-voltage electro-hydraulic MV Soft Starter is a purpose-engineered starting solution developed to optimize the heavy-load starting performance of medium-to-large wound-rotor AC asynchronous motors. Tailored for rigorous industrial environments, the medium voltage soft starter is widely applied in sectors such as building materials, metallurgy, mining, and petroleum, delivering reliable starting control for critical equipment including ball mills, hoists, crushers, fans, and water pumps.
- This MV Soft Starter stands out with three core technical advantages: First, this liquid starter motor achieves ultra-low starting current, with the starting current (Iq) limited to no more than 1.3 times the rated current (Ie), minimizing inrush impact on the power grid and upstream electrical systems. Second, it provides controlled starting torque, with the starting torque (Mq) capped at ≤1.3 times the rated torque (Me), enabling smooth, shock-free startup for heavy-duty loads while protecting mechanical transmission components. Third, it supports 5–10 consecutive starts, ensuring operational continuity for applications requiring frequent startup cycles.
Engineered for industrial-grade reliability, the TRQ MV Soft Starter combines robust construction with precise control, making it the optimal choice for enhancing motor starting performance, extending equipment service life, and reducing maintenance costs in heavy industrial operations.
Model & Main Data Sheet
|
Model |
Applicable Motor Capacity (kW) |
Starting Temperature Rise (℃/Start) |
Starting Time (s) |
Normal Operating Temperature of Liquid (℃) |
Max Phase Resistance Range (Ω) |
Remarks |
|
TRQ4-0.2 |
≤210 |
<5 |
15±2 |
0-60 |
0.1-2 |
Integrated |
|
TRQ4-0.4 |
≤380 |
<5 |
20±2 |
0-60 |
0.1-2 |
Integrated |
|
TRQ4-0.4K(C) |
≤380 |
<4 |
20±2 |
0-60 |
0.1-2 |
Integrated |
|
TRQ6-0.6 |
380-630 |
<5 |
20±2 |
0-60 |
0.2-3 |
- |
|
TRQ6-0.6J |
380-630 |
<5 |
20±2 |
0-60 |
0.2-3 |
- |
|
TRQ6-0.6K(J)/(C) |
280-380 |
<3 |
20±2 |
0-60 |
0.2-3 |
- |
|
TRQ6-1 |
630-1250 |
<3 |
28±2 |
0-60 |
0.4-3 |
- |
|
TRQ6-1W |
630-1250 |
<5 |
28±2 |
0-60 |
0.4-3 |
- |
|
TRQ4-2 |
1250-3200 |
<5 |
35±2 |
0-60 |
0.3-3 |
- |
Application
This TRQ electro-hydraulic starter is universally compatible with mainstream wound-rotor high-voltage motor models including JR, YR, YRKS, YRKK series (6kV/10kV). It has been widely matched with motors from well-known domestic manufacturers such as Simo, Jiamusi Electric, Wolong Nanyang Explosion-proof, Jiangsu Dazhong and Liuan Jianghuai Motor, serving numerous mining, cement and metallurgy end-users globally.

Ordering Information
|
Ordering Scenario |
Submission of Complete Data and Technical Parameters Required |
|
Replacement of Existing Motors |
If the motor being purchased is intended to replace an existing unit, please provide the following materials in full to facilitate a rapid and precise model match, selection of appropriate product specifications, and the issuance of an accurate quotation: a photograph of the original motor's nameplate, photographs of the complete machine/equipment, relevant equipment drawings, and the original technical parameter sheet. |
|
Integration with New Equipment |
If the motor being purchased is intended for integration into brand-new equipment, please provide the following information in comprehensive detail: Electrical Parameters (Voltage, Power, Speed, Frequency, Frame Size); Equipment Configuration Parameters (Cooling Method, Insulation Class, Connection Method, Starting Method); Operating Conditions (Type of Driven Equipment, Industry Application, Ambient Temperature); Optional Accessories (Heaters, Temperature Sensors, Vibration Sensors, Speed Sensors, Encoders, etc.), as well as whether any accompanying spare parts are required. |
Custom Intelligent Manufacturing Capabilities
Focused on high-end motor OEM customization within the heavy industry sector, we specialize in the R&D and mass production of high-performance DC and medium/high-voltage motors, deeply tailored to the heavy-load operating conditions found in metallurgy, mining, and power generation. Supported by intelligent production lines and a standardized quality inspection system, we maintain full control over the entire value chain-from structural design and precision manufacturing to performance testing and after-sales maintenance. We offer targeted customization based on specific equipment loads and operating environments, thereby guaranteeing the long-term efficiency and operational stability of the machinery.
Package




Certificate








Company Profile
We offer a one-stop solution for all your needs-delivering reliable quality and exceptional compatibility. PUTAI Motor is a source factory that handles the entire process in-house-from the R&D and manufacturing of various industrial motors and associated electrical equipment to the coordination of import and export logistics. Our product line is comprehensive, featuring the full spectrum of mainstream market offerings-including AC, DC, and medium-voltage industrial motors, motor starters/drives, windings, and precision components.
Rather than engaging in generic, low-end mass production, we focus specifically on the customized adaptation of mid-to-high-end industrial motors. By closely analyzing our clients' specific on-site usage scenarios and equipment operational requirements, we optimize structural designs and manufacturing processes to deliver drive system solutions that offer superior compatibility and greater operational stability.
Whether you require the procurement of standard motors, the replacement of aging or faulty units within your facility, the customization of specialized non-standard motors, or the sourcing of a full complement of motor-related components, we offer a comprehensive, one-stop solution. We deliver exceptional value and robust after-sales support, making us an ideal long-term partner for a wide range of industrial collaboration scenarios.
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