75kw - 10000kw Soft Starter Liquid Resistance Soft Starter for Slip Ring Motor

• Customization: Available
• Application: Three Phase Transducer
• Output Type: Triple
• Model NO.: WSTRHV
• Principle of Work: Vector Control Transducer
• Switch Mode: High Carrier Frequency PWM Control
• Main Circuit Type: Voltage
• Voltage of Power Supply: High Voltage Variable-Frequency Drive
• Link of Transformation: AC-DC-AC Variable-Frequency Drive
• Nature of DC Power: Voltage Variable-Frequency Drive
• Brand: Winston
• AC Voltage: AC3kv/6kv/10kv,±10%-15%
• Frequency: 50Hz/60Hz ± 2Hz
• Control Method: Three-Wire
• Cooling Method: Natural Cooling
• Specification: CE
• Trademark: Winston/OEM/Neutral
• Origin: China, Zhejiang, Wenzhou
• Production Capacity: 10000PCS/Month

Product Description

Product Description

    Soft starting device is the high voltage ac motor starting equipment, its main composition is connected into the power between
the charged with motor and three instead of parallel thyristor components and electronic control unit. WSTRHV series high voltage
solid-state soft starting device is composed of multiple thyristor series parallel, by controlling the thyristor trigger Angle to control
the size of the output voltage, can satisfy the motor starting process in different voltage and current requirements. In the process
of motor starting, WSTRHV series high voltage solid soft starting device according to the preset curve starting, increase the voltage
of the motor, the motor smooth acceleration, so as to reduce motor starting on the grid, and connected equipment electrical and
mechanical shock. When the motor starts up to normal speed, the bypass vacuum contactor or circuit breaker is connected, and
the motor starts to finish. During the operation of the motor, the soft starting device continues to monitor the motor, measuring the
electric current, voltage and all kinds of fault protection in real time.

Performance indicators

Category	Explanation
AC voltage	AC3kV/6kV/10kV,±10%-15%
Load type	Three - phase high - voltage AC induction motor, synchronous
Frequency	50Hz/60Hz ± 2Hz
Main circuit composition	3kV,12SCRS;6kV,18SCRS;10kV,30SCRS
Transient overvoltage protection	Pressure protection and resistance absorption network
Cooling method	Natural cooling
Control method	Three-wire
Environmental conditions	Ambient temperature: -10-40 deg.] C, altitude: not more than 2000 m, the relative humidity: not more than 85%

Working principle

When the soft start device detects the external start command, after the microprocessor detects the synchronization signal, the main circuit thyristor
phase angle trigger control, and gradually increase the motor side of the current and voltage, so smooth start the motor. In this process, the RC RC
absorber absorbs the peak voltage at the time of thyristor reverse turn-off; the voltage-controlled thyristor voltage ensures that each thyristor voltage
in the series circuit is equal. Fiber triggering ensures electrical isolation between the controller and the high voltage thyristor, while ensuring that the
trigger signal is not subject to electromagnetic interference.

Functioning

1. Protection function

  1) Overvoltage protection, undervoltage protection: voltage exceeds the set voltage range,

      the protection action and send a signal.
  2) Over-current protection: start or run the process of excessive current, more than set the current value,

      protection action and send a signal.
  3) Current imbalance: three-phase current imbalance will lead to motor jitter and heat, three-phase current

      unbalance value exceeds the set range, the protection action concurrent signal.
  4) Start-up time: When the motor starts longer than the set time limit, the protection action is signaled.
  5) Overload protection: motor running process, the occurrence of overload, the protection action and signal.
  6) Underload protection: During operation of the motor, underload or loss occurs, protection action is generated.

2. Measurement functions

  1) Voltage measurement: measurement of power line voltage
  2) Current measurement: motor A, B, C three-phase current detection.

3. Communication Interface

  1) Display communication: display panel selection touch screen, RS232 communication.
  2) External communication: external device and controller communication, RS485 communication,

      standard MODBUS protocol.

4. Open and out

  1) The amount of 8 points, optoelectronic isolation, no power into.
  2) Out of 7 points, contact capacity of 10A / 250VAC, no power out.

5. The user interface

  1) Touch-screen display, a touch operation.
  2) Transfer switch and operation button: straight up / soft start, the cabinet / remote two switch, start, stop,

      direct start, emergency stop four buttons.
  3) Status indicator: power, ready, start / soft stop, bypass / run, fault, bypass points 6 lights.
Note: The above is the standard configuration, special circumstances can be adjusted according to user needs.

Technical parameters

Model	Voltage level	Rated current	Cabinet size
	(kV)	(A)	H(mm)	W(mm)	D(mm)
WSTRHV-350/3	3	80	2300	1000	1500
WSTRHV-650/3	3	160	2300	1000	1500
WSTRHV-900/3	3	220	2300	1250	1500
WSTRHV-1150/3	3	280	2300	1250	1500
WSTRHV-1500/3	3	360	2300	1250	1500
WSTRHV-1500(the above)	3	>360	Booked
WSTRHV-700/6	6	80	2300	1000	1500
WSTRHV-1300/6	6	160	2300	1000	1500
WSTRHV-1800/6	6	220	2300	1000	1500
WSTRHV-2300/6	6	280	2300	1000	1500
WSTRHV-3150/6	6	360	2300	1000	1500
WSTRHV-3000/6(the above)	6	>360	Booked
WSTRHV-850/10	10	60	2300	1000	1500
WSTRHV-1100/10	10	80	2300	1000	1500
WSTRHV-2000/10	10	140	2300	1000	1500
WSTRHV-2200/10	10	160	2300	1000	1500
WSTRHV-2750/10	10	200	2300	1000	1500
WSTRHV-3050/10	10	220	2300	1000	1500
WSTRHV-3800/10	10	280	2300	1000	1500
WSTRHV-5000/10	10	360	2300	1000	1500
WSTRHV-5000/3(the above)	10	>360	Booked

Detailed Photos

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