Model Meaning

Working principle

• The control core of the YAMV series high-voltage solid-state soft starter device is the microprocessor MCU. The microprocessor triggers the phase angle control of the SCR to reduce the voltage applied to the motor, and then smoothly increases the motor torque by slowly controlling the voltage and current applied to the motor until the motor accelerates to full speed. This starting method can reduce the starting impulse current of the motor and reduce the impact! The impact of the power grid and the motor itself also reduces the mechanical impact on the mechanical load devices connected to the motor, in order to extend the service life of the equipment and reduce the time for fault and shutdown detection. When the electric motor reaches full speed operation, the motor current drops to the normal full speed operation current value. The YAMV series soft start device has a bypass output relay, which makes the bypass high-voltage vacuum contactor close and close, allowing the motor current to pass through the bypass contactor, preventing heat loss caused by the pressure drop caused by SCR conduction, and improving work efficiency and reliability.

Performance characteristics

• Multiple triggering methods
  The combination of single-phase fiber optic and multi-point electromagnetic triggering technology achieves isolation between the triggering detection of high-voltage thyristors and low-voltage control circuits, ensuring safety and reliability. Improved the reliability of the device.
• Multiple communication interfaces
  Configure RS-485 communication interface, standard Modbus communication protocol, and can communicate with upper computer or centralized control center.
• Multiple startup modes
  Voltage ramp start, current ramp start, and sudden jump ramp start can select corresponding start parameters according to different loads to achieve the best start effect.
• Friendly human-machine interface
  The touch screen human-machine window monitors the system status in real-time, collects valve group data, and modifies or sets system control parameters.
• Innovative radiator process design
  The power device adopts a modular structure, and the thyristor and heat sink adopt a longitudinal dog stacked series structure, which has good heat dissipation effect, long service life, and compact structure.
• Protection of thyristors
  The resistance capacitance network absorbs dynamic and static voltage equalization technology to ensure the reliable and safe operation of power devices in series at high and low speeds.
• Diversified entry and exit methods
  According to the user's on-site requirements, cable installation methods can be selected, including bottom in and bottom out, top in and bottom out, side in and bottom out, and side in and side out.
• Multiple control modes
  The whole machine is equipped with local, remote (internal dry contact), PLC, communication (485 interface, Modbus) start stop control functions.
• High reliability and security
  All electrical isolation between high and low voltage systems adopts fiber optic isolation and magnetic isolation, with low-voltage (380V) motor pre adjustment function, and a standard high-voltage cabinet with five protection functions is used.
• Standard modular design
  Adopting a high-voltage power thyristor modular structure and modular design, it is easy to install and maintain with the entire machine.
• Industrial 5G Internet of Things (Order Agreement)
  Through industrial Ethernet+5G, connected to cloud servers, data is provided for big data analysis and related artificial intelligence algorithms, fully utilizing the computing power of cloud platforms to achieve online analysis and diagnosis of motor operation status, fault warning, and optimized control.

Technical Parameter

• Basic parameters

1. Load type: three-phase high-voltage squirrel cage asynchronous motor, synchronous motor
2. AC voltage: 3000-10000VAC
3. Working frequency: 50Hz/60Hz ± 2Hz
4. Phase sequence: The output terminal is allowed to work in any phase sequence
5. Bypass contactor: a contactor with direct starting capacity
6. Control power supply: AC220V ± 15%
7. Instantaneous overvoltage protection: dv/dt absorption network
8. Starting frequency: 1-6 times (per hour)
9. Environmental conditions: Environmental temperature: -20 ℃~+50 ℃
                   Relative humidity: 5% -95% without condensation
                   Altitude less than 1500 meters (capacity reduction required for use above 1500 meters)

• Operation interface

1. Display: Touch screen display
2. Language: Chinese/English

• Data record

1. Fault query record: Record all historical fault records of this device
2. Running time record: Record the historical cumulative running time of this device
3. Operation log recording: Record all historical operation items of this device

• Protection function

1. Input phase loss protection: When any phase is missing during startup or operation, the parking protection will act and send a signal
2. Output phase loss protection: When there is no current output in any phase, the parking protection will activate and send a signal
3. Start timeout protection: Start time limit: 5-120S
4. Starting overcurrent protection: Setting of starting overcurrent protection: 300-700le
5. Running overcurrent protection: Setting of running overcurrent protection: 60-200% le
                                                        Operation overcurrent protection action time: 0-120S
6. Phase current imbalance protection: Current imbalance protection setting: 0-80% le
                                                              Current imbalance protection action time: 0-120S
7. Run under load protection: Run under load protection setting: 0-80% le
                                               Operation under load protection action time: 0-120S
8. Overvoltage protection: Overvoltage protection setting: 80-150% Ue
                                          Overvoltage protection action time: 0-120S
9. Undervoltage protection: Undervoltage protection setting: 60-100% Ue
                                             Undervoltage protection action time: 0-120S
10. Shutdown with high voltage trip: If the shutdown exceeds 1 hour, the fault relay will act once

• Communication instructions

1. Communication protocol/interface: Modbus RTU
2. Network connection: Each RPMV can communicate with 32 ODS devices through network connection
3. Function: Through the communication interface, the running status and programming can be observed

• instrument display

1. Main power supply voltage: Display the three-phase main power supply voltage
2. Three phase current: display the current of the three-phase main circuit

Selection and Size

Notes

• In addition to the standard cabinet appearance mentioned above, our company can provide customers with non-standard customized products, and the product size is based on the actual product.