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China SHMV-YTG Medium Voltage Soft Starter | Reliable Suppliers & Factory for High-Tech Motor Control Solutions
Structural Features
The device consists of a handcart type vacuum circuit breaker, SHMV-YTG soft starter, and a bypass vacuum contactor.
- The cabinet is made of 2mm aluminum-zinc steel plate, processed by CNC numerical control equipment, and connected with high-strength bolts. The overall protection level is IP4X.
- The cabinet is divided into four separate functional unit compartments: the trolley compartment room, the high-voltage bus room, the high-voltage cable room, and the high-voltage soft starter room.
- The integrated cabinet design of high-voltage switch, soft-up cabinet, and bypass cabinet is small in size, saving space in the distribution room while delivering the same power.
- The product size is only 30%-50% of soft starters of other methods, allowing perfect combination and cabinet installation with other equipment.
- It is especially suitable for the technical transformation and replacement of limited on-site locations and similar startup products. (Switch cabinet split design is also optional).
Applications
Widely used in power systems, metallurgy, mining, petroleum, chemical, water treatment, and other industries for high-voltage squirrel-cage AC asynchronous & high-voltage synchronous motors. It serves functions such as high-voltage motor soft start, soft stop, control, and protection.
Voltage Range: 3.3~10KV | Controlled Motor Power: 220KW~5600KW
Performance and Parameters
- Control mode: Kick start, voltage ramp, constant current, speed control (Optional).
- Starting mode: Soft start, straight up, soft stop, free stop.
- Operation mode: Local cabinet, external control, communication remote control (optional).
- Communication mode: RS 485 interface: Modbus protocol and Profibus protocol (optional).
- Analog output: Motor operating current, signal 0-10V or 4-20mA or 0-20mA.
- Initial voltage: 10% to 50% (expandable to 5% to 80% Un).
- Current limiting multiple: 100% to 400% In (expandable to 500% In).
- Start/stop time: 1~30S (expandable to 90S).
- Start jump: Current, 70%-700% In (kick time 0~10S).
- Parameter settings: 1 - control panel button, 2 - background communication settings.
- LCD display: Operating current, number of starts, running time, and failure information. Default language: Chinese, English, German, French, and Spanish.
- Noise: < 80dB.
- Continuous start interval: In ambient temperatures > 40°C, with starting current at 400% In, the interval is ≥ 30 minutes. At lower temperatures/currents, it can be reduced but must be at least 15 minutes.
- Cooling method: Natural cooling.
- Operating power: AC220V 50Hz 600VA (Special requirements require another proposal).
- Main circuit power frequency withstand voltage: 42KV/1 minute (except power unit).
- Protection Mode: Compound (see Protection Features). Protection class: IP42 (IP54 optional).
Working Environment and Conditions
- Air temperature: Running: -10°C to 50°C | Storing: -20°C to 70°C (stated when ordering in special circumstances).
- Relative humidity: No more than 95% at +50°C. At lower temperatures, greater relative humidity is allowed.
- Environment: Free of explosion hazards and corrosive gases. Pollution level: ≤ 3 (up to 4).
- Altitude: < 1000m (expandable to 4000m).
- Vibration: Permitted site vibration frequency: 10Hz to 150Hz, vibration acceleration not more than 0.5m/s².
- Main power supply: 10KV/50Hz three-phase voltage continuous fluctuation does not exceed -15% to +10%. Frequency fluctuation ≤ ±5Hz; frequency rate of change ≤ ±1% per second.
Note: The black font part of the performance parameters and working conditions is standard configuration. If there is any other requirement in the parentheses, it will be specified in the contract when ordering.
High Voltage Soft Starter Integrated Cabinet System Diagram and Appearance
Product Selection & Size
The 2.3KV voltage level can be replaced with the product of 3.3KV voltage grade; 4.16KV and 6.6KV voltage grade can use 6KV voltage grade product replacement. The soft starter must be selected based on the rated current on the motor nameplate (even if the motor is not running at full load). The corresponding KW values given below are for reference only. Please calculate the current according to the power before confirming.
| Model | Voltage (KV) | Current (A) | Power (KW) | Dimensions WxDxH (mm) |
|---|---|---|---|---|
| SHMV-YTG-3.3-50 | 3.3 | 50 | 220 | 1000X1500X2300 Standard; 800X1500X2300 Customized |
| SHMV-YTG-3.3-100 | 3.3 | 100 | 450 | |
| SHMV-YTG-3.3-150 | 3.3 | 150 | 630 | |
| SHMV-YTG-3.3-200 | 3.3 | 200 | 900 | 1000X1500X2300 |
| SHMV-YTG-3.3-300 | 3.3 | 300 | 1250 | 1000X1500X2300 |
| SHMV-YTG-3.3-400 | 3.3 | 400 | 1800 | 1200X1500X2300 |
| SHMV-YTG-6-50 | 6 | 50 | 400 | 1000X1500X2300 Standard; 800X1500X2300 Customized |
| SHMV-YTG-6-100 | 6 | 100 | 800 | |
| SHMV-YTG-6-150 | 6 | 150 | 1250 | |
| SHMV-YTG-6-200 | 6 | 200 | 1600 | 1000X1500X2300 |
| SHMV-YTG-6-300 | 6 | 300 | 2400 | 1000X1500X2300 |
| SHMV-YTG-6-400 | 6 | 400 | 3200 | 1200X1500X2300 |
| SHMV-YTG-10-50 | 10 | 50 | 690 | 1000X1500X2300 Standard; 800X1500X2300 Customized |
| SHMV-YTG-10-100 | 10 | 100 | 1400 | |
| SHMV-YTG-10-150 | 10 | 150 | 2000 | |
| SHMV-YTG-10-200 | 10 | 200 | 2800 | 1000X1500X2300 |
| SHRMV-YTG-10-300 | 10 | 300 | 4000 | 1000X1500X2300 |
| SHRMV-YTG-10-400 | 10 | 400 | 5600 | 1200X1500X2300 |
Note: The above are some typical product data. The specific parameters are based on the actual product.
Technical Indicators
| General Information | |
|---|---|
| Main power supply | Voltage: 2300V, 3300V, 4160V, 6000V~6900V, 10000V~11000V, +10% -15% |
| Insulation level | For 2300V: Insulation voltage as 6900V |
| For 3300V: Insulation voltage as 9900V | |
| For 4160V: Insulation voltage as 12,500V | |
| For 6000~6900V: Insulation voltage as 19,500V | |
| For 10000~11000V: Insulation voltage as 32,500V | |
| Frequency | 45~65Hz (frequency automatic adjustment) |
| Control voltage | 110~230V (customized) +10% -15% |
| Control input & output voltage | Same with control voltage or customized: 24~230VAC/DC |
| Load | 3 phase 3 wire squirrel cage induction motor |
| Working Parameters | |
|---|---|
| Soft starter FLC | The rated current of the starter can be found in the selection guide. |
| Motor FLA | The full load current of the motor can be selected between 33% and 100% of the starter FLC. |
| Pump control curve | 6 curves are optional to prevent overpressure during pump start and water hammer effect during stop. |
| Pulse start | With 70~700% FLA current pulse, adjustable pulse time: 0~10 seconds for starting high static friction load. |
| Initial voltage(*) | Can be set to 10-50% Un (10~80% Un can be provided with customized). |
| Current limit(*) | Can be set to 100-400% of motor FLA (can be extended to 100-500%). |
| Start ramp up time(*) | 1-30 seconds adjustable (can be extended to 1~90S). |
| Stop ramp down time(*) | 1-30 seconds adjustable (can be extended to 1~90S). |
| Double adjustment | Settings for start voltage, current limit, acceleration, deceleration time, and dual start/stop parameters of the motor FLA. |
| Speed feedback and linear increase | 12 curves selectable to control motor speed linear gain by speed feedback. |
*Extensible range details contact factory
| Motor Protection | |
|---|---|
| Start times limit | The maximum allowable start times in the set start cycle: 1 to 10 starts in the 1 to 60 minute start cycle. |
| Start prohibited | After the "start over frequency" indication is given, the prohibited start time is adjustable from 1 to 60 mins to limit the restart. |
| Long start time (stall protection)(*) | If the motor has not reached the full speed within the set maximum start time of 1~30 seconds (extended 1~90 seconds), |
| the starter trips protection. | |
| Electronic fuse | When the current reaches 850% FLA when starting, or 200%~850% FLA during running, the starter trips in one cycle. |
| Electronic overload (I²t) | Can be set at 75%~150% FLA; the overload curve can be selected by setting the trip time (at 500% FLA for 1~10S). |
| Under current | Main current drops below 20%~90% FLA, time delay is 1-40 seconds, starter trips for protection. |
| Under voltage(**) | Main voltage drops below 50%~125% Un, time delay 1-10 seconds, starter trips for protection. |
| Over voltage | The main voltage rises to more than 110%-125%, time delay is 1-10 seconds, starter trips for protection. |
| Phase loss (low/high frequency) | The starter trips when the mains 1 to 2 phases are missing or the frequency deviates from the normal frequency by ±5 Hz. |
| Phase sequence | The starter trips when the phase sequence is incorrect. |
| Wrong connection / shorted SCR | If the motor fails to properly connect to the starter, or if there is a thyristor short-circuit, starting is prohibited. |
| Heatsink overtemperature | When the heat sink temperature is higher than 85°C, the starter trips. |
| External fault | The starter trips after 2 seconds when the external fault contact closes. |
| External fault 2 | The starter trips after 2 seconds when the external fault 2 contact closes. |
| Current unbalance | When the main loop current imbalance exceeds the set value and exceeds the delay time, the starter trips for protection. |
| Ground current fault | When the ground current exceeds the set value and the delay time is exceeded, the starter trips for protection. |
| No start signal of main power(***) | When the starter is connected to the 3-phase main voltage and no soft start signal is added for over 30S, the starter trips for protection. |
| Can't switch to bypass fault | When the motor enters full pressure, if it cannot switch to bypass, the starter trips for protection. |
Frequently Asked Questions (FAQ)
What are the main components and structural materials of the cabinet?
The device consists of a handcart type vacuum circuit breaker, an SHMV-YTG soft starter, and a bypass vacuum contactor. The cabinet is made of 2mm aluminum-zinc steel plate, processed by CNC numerical control equipment, and connected with high-strength bolts, offering an overall protection level of IP4X.
What industries and motor types is this soft starter suitable for?
It is widely used in power systems, metallurgy, mining, petroleum, chemical, water treatment, and other industries. It is designed for high-voltage squirrel-cage AC asynchronous and high-voltage synchronous motors within a voltage range of 3.3~10KV and a power range of 220KW~5600KW.
How does the integrated cabinet design save space?
By integrating the high-voltage switch, soft-up cabinet, and bypass cabinet into a single unit, the cabinet size is reduced to only 30%-50% of soft starters using other methods. This saves significant space in the distribution room while maintaining the same power output.
What starting and control modes does the SHMV-YTG support?
It supports multiple control modes including kick start, voltage ramp, constant current, and optional speed control. The starting modes include soft start, straight up, soft stop, and free stop.
What types of motor protection are built into the system?
The system features comprehensive built-in protection, including start times limits, stall protection (long start time), electronic fuses, electronic overload (I²t), under/over voltage, phase loss/sequence protection, shorted SCR detection, heatsink overtemperature protection, current unbalance, and ground fault protection.