China SHMV-YTG Medium Voltage Soft Starter - Top Suppliers & Factory for Advanced 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, followed by 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, saves the space of the distribution room, and has the same power.
The product size is 30%-50% of the soft starter of other methods, and other equipment can be perfectly combined and cabinet installed.
It is especially suitable for the technical transformation and replacement of the limited on-site location and the start-up products of similar manufacturers. (Switch cabinet split design is also optional)
Applications
Widely used in power systems, metallurgy, mining, petroleum, chemical, water treatment and other industries of high voltage squirrel-cage AC asynchronous & high-voltage synchronous motor. As a high voltage motor soft start, soft stop, control, and protection system. 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 control, external control, and 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, failure information and other parameters. Default language: Chinese (English), German, French, and Spanish.
- Noise: <80db.
- Continuous start interval: In ambient temperatures greater than 40°C, if starting current is at 400% In, the interval is not less than 30 minutes. When the temperature is low and starting current is relatively small, the interval can be properly 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 if special requirement).
Working environment and conditions
Air temperature around the equipment: When running: -10°C to 50°C. When storing: -20°C to 70°C (stated when ordering in special circumstances).
Relative humidity of the air around the equipment: No more than 95% at +50°C. At lower temperatures, greater relative humidity is allowed.
Environment: The environment surrounding the equipment is free of explosion hazards and corrosive gases. Pollution level: ≤ 3 (up to 4).
Altitude: < 1000m (expandable to 4000m).
Vibration: Vibration conditions permitted at the installation site: The vibration frequency is 10Hz to 150Hz, and the vibration acceleration is not more than 0.5m/s².
Main power supply: 10KV/50Hz three-phase voltage continuous fluctuation does not exceed -15% to +10%. The frequency fluctuation does not exceed ±5Hz; the rate of change of frequency does not exceed ±1% per second.
Note: The black font part of the performance parameters and working environment conditions is standard configuration. If there is any other requirement in the parentheses, that part in the text will be specified in the contract when ordering.System Diagram & 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 value given in the table below is for reference only. Pay attention to different voltage levels when the motor power is the same; when the current is different, select the correct type number. Please calculate the current according to the power before confirming.
| Model | Voltage (kV) | Current (A) | Motor Power (kW) | Size 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 |
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 | About the start voltage, current limit, acceleration, deceleration time and dual start/stop parameter settings of the motor FLA. |
| Speed feedback and linear increase | 12 curves selectable to control motor speed linear gain by speed feedback. |
| 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, limiting the restart. |
| Long start time (stall protection)(*) | If the motor has not reached the full beam within the set maximum start time 1~30 seconds (extended 1~90 seconds), |
| the starter trips protection. | |
| Electronic fuse | When the current reaches 850% FLA when starting, the current reaches 200%~850% FLA, and 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 can be set. |
| Under current | Main current drops below 20%~90% FLA, time delay is 1-40 seconds, starter trips protection. |
| Under voltage(**) | Main voltage drops below 50%~125% Un. time delay 1-10 seconds. Starter trips protection. |
| Over voltage | The main voltage rises to more than 110%-125%, the time delay is 1-10 seconds, and the starter trips 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 ±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-circuiting the starter, start 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 fault2 | The starter trips after 2 seconds when the external fault contact closes. |
| Current unbalance | When the main loop current imbalance exceeds the set value and exceeds the delay time, the starter trips protection. |
| Ground current fault | When the ground current exceeds the set value, and the delay time exceeds the delay time, the starter trips protection. |
| No start signal of main power(***) | When starter is connected to the 3-phase main voltage and no soft start signal is added for over 30S, the starter trip protection is applied. |
| Can't switch to bypass fault | When the starter motor enters full pressure, if it cannot switch to bypass, the starter trips protection. |
Frequently Asked Questions
Q1: What are the main components integrated in the SHMV-YTG soft starter cabinet?
A: The integrated cabinet consists of a handcart type vacuum circuit breaker, the SHMV-YTG soft starter, and a bypass vacuum contactor. It features a space-saving design that is 30% to 50% smaller than traditional soft starters.
Q2: What is the protection rating and structure of the cabinet?
A: The cabinet is constructed from 2mm aluminum-zinc steel plate processed by CNC equipment and bolted with high-strength bolts. It provides an overall protection level of IP4X (IP42 standard, IP54 optional) and is divided into four separate compartments: trolley, high voltage bus, high voltage cable, and high voltage soft starter rooms.
Q3: Which industries and motor types are suitable for this equipment?
A: It is widely applied in power systems, metallurgy, mining, petroleum, chemical, and water treatment 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 power range of 220KW~5600KW.
Q4: What control and starting modes does the system support?
A: It supports kick start, voltage ramp, constant current, and optional speed control. Starting modes include soft start, straight up, soft stop, and free stop. Operation can be managed locally on the cabinet, externally, or remotely via RS 485 (Modbus/Profibus protocols).
Q5: What motor protection features are built into the soft starter?
A: The system provides comprehensive compound protection, including start times limit, electronic overload (I²t), phase loss, phase sequence, under/over voltage, under current, heatsink overtemperature, shorted SCR, and bypass transition failure protection.
Q6: What are the environmental requirements for standard operation?
A: The equipment runs in temperatures from -10°C to 50°C with relative humidity up to 95% at 50°C. It is designed for altitudes below 1000m (expandable to 4000m) and environment conditions free of explosion hazards and corrosive gases.