Medium Voltage Starter

With the support of Industrial IoT and 5G technologies, and based on Renle's years of accumulated technological expertise, the medium-voltage power modules achieve full digitalization through optical fiber multiplexing technology. The newly developed intelligent soft starters are equipped with standard industrial Ethernet and a variety of communication interfaces. Using industrial Ethernet, the soft starter enables remote data analysis, software upgrades, debugging, a virtual oscilloscope, and other digital functions.

RNMV-EI INTELLIGENT-HIGH-VOLTAGE SOLID-STATE SOFT STARTER • Optical fiber multiplexing technology • Fully digital high-voltage power modules • Multiple communication interfaces • Supports 6 industrial Ethernet connections • Remote data analysis • Remote software upgrades

t(s)Real-time display of all data and operating status

 

 

By connecting the soft starter to the IT platform via a network protocol, motor data visualization is enabled through IT technology.

 

Making full use of the cloud platform's computing power enables online analysis and diagnosis of motor operating status, fault warning, and optimal control.

 

 

11 Connection to the cloud server provides data for big-data analysis and related artificial intelligence algorithms.

 

• The RNMV-EI is a solid-state medium voltage starter designed for three-phase induction motors. It manages motor acceleration, deceleration, and protection by regulating voltage through thyristor firing angle control. This enables smooth motor starts and stops, significantly reducing power supply inrush currents and minimizing mechanical stress on driven equipment and couplings. Consequently, the system mitigates electrical grid disturbances and safeguards mechanical components from shock loads.
• Medium voltage systems bring inherent complexity-your starter shouldn't add more. RENLE's RNMV-EI medium voltage soft starter simplifies operation with intuitive features like plain-text diagnostics, eliminating cryptic code lookups. Integrated monitoring, status indicators, and comprehensive I/O minimize spatial demands and auxiliary costs while streamlining deployment. Live motor performance curves and current displays provide instant clarity on operational status. Experience effortless control: The RNMV-EI delivers clear operational feedback in everyday language, ensuring straightforward starts without decoding manuals.

5G Industrial Ethernet Communication Technology

Based on industrial Ethernet and cloud platforms, the system enables comprehensive remote technical support for field equipment.

Data reading->waveform display->data diagnosis->software upgrade

Supports multiple communication protocols

1. Supports Modbus RTU, Modbus TCP, and PROFIBUS DP.

2. Provision of multiple interfaces facilitates parameter reading, writing, and data monitoring.

3. Supports remote waveform monitoring and data analysis via software.

4. Data downloads and software upgrades are performed via FTP and TFTP.

We are committed to supporting industrial more development by providing high-quality products.

The RNMV-EI medium-voltage starter can be applied in a wide range of industries, including electric power, metallurgy, petroleum, petrochemical, mining, building materials, chemical, and municipal engineering, providing a compact, stable, and reliable soft-starting solution for controlling medium-voltage motors.

Equipped with comprehensive motor and system protection functions, Renle's soft starters deliver dependable performance even in the harshest environments. With abundant user interfaces and a modular design, our intelligent soft starters meet the starting requirements of large and medium-sized industrial machinery across modern industries.

We are always ready to provide you with the right solution!

Thyristor valve group series connection and dual power supply triggering technology is adopted;

● Optical fiber communication multiplexing technology for precise drive control and data collection.

● HMI is adopted for real-time monitoring, display, modification, and set of system status and data.

● Equipped with OBD and software dual overvoltage protection functions.

● Statistics of valve group limit data are performed after each startup to evaluate the system status;

● With a phase-locked loop synchronously used, the three-phase conduction compensation technology controls the algorithm;

● Protections include: undervoltage, phase loss, overcurrent, overheating, thyristor overvoltage, triggering failure, abnormal voltage sharing, abnormal RC current, thyristor failure, optical fiber communication interruption, abnormal triggering power supply, etc. Start of the soft starter is prohibited when any abnormality is identified;

● Remote software update, commissioning, data waveform monitoring and fault analysis is realized through InterNet;

● After connecting to the cloud server through industrial Ethernet + 5G, the soft starter provides data for big data analy-sis and related AI algorithms, makes full use of the computing power of the cloud platform to realize online analysis and diagnosis of motor operating status, and realizes fault pre-warning and optimized control.

● Strong load adaptability with 2 start-up control modes:

① Constant current mode: The motor's starting current is limited to 100–500% of its rated value.

② Voltage ramp mode: The control angle causes the output voltage to increase linearly to the rated voltage.

● Either free stop or soft stop can be selected, suitable for different stopping conditions and meets specific needs - for example, eliminating the water hammer effect in water pumps.

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