Maintenance-free: not like other devices which require maintenance for liquid or wear parts, a contactless switch and can operate several years without any maintenance.
Ease installation and operation: SSM is an integrated controlling and protective unit, the only job for customer is to connect it with power supply cable and motor before operation. Low voltage is permitted to apply to the device for electrical test.
Backup function: A vacuum contactor is installed in SSM cabinet and customer may start the motor by switching on the vacuum contactor to prevent system breaks down in case SSM gets in fault.
Thyristor SSM is designed with a magnetic locking device to prevent breaking in after SSM is energized.
The fiber-optic transmission system insured isolation between high voltage thyristor trigger detecting circuit and low voltage control circuit.
Command from the control center is execute by the 32 bits ARM core which ensures reliable and steady real time control with direct displaying.
Dual-language Chinese/English Liquid crystal displaying screen /touch screen for data displaying and humanized interface for operation.
SSM integrated a RS485 port which can communicate with host computer or collective control center.
Comprehensive motor protections provided by micro-processer.
Compact design with unique structure of heatsink, insulation of high voltage elements and low voltage elements which ensures a safe operation.
Specifications
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daptable motor
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Three phase AC squirrel cage asynchronous/synchronous motors
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Line voltage, kV
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3~10
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Frequency
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50Hz/60Hz±2 Hz
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Phase sequence
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Operate at any phase sequence (may set by corresponding parameters)
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Amount of SCR
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12SCRS, 18SCRS,30SCR (depend on model)
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Bypass contactor
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Big enough to start directly
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Control voltage
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AC220v±15%
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Transient over-voltage protection
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Dv/dt absorption mesh
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Starts per hour
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Not more than 6 starts per hour
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Environment
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Operating temperature range: -25~+45℃
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Humidity: 5%~95%(20℃±5℃)
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Altitude: under 1500 meters (derate Amp rating when above 1500 meters)
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Protections
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Phase missing
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Trips if any phase is missing during starting or running
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Over current during running
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20~500% Ie
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Current difference
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0~100%
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Over load
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Grade: 10A, 10, 15,20, 25, 30
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Under load
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Grade:0~99%
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Trip delay 0~250s
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Starting over time
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Starting time:0~120s
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Over voltage
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Trips when line voltage is over 120% of rating
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Under voltage
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Trips when line voltage is less than 70% of rating
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Phase sequence detection
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Operate at any phase sequence (may set by corresponding parameters)
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Grounding current
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Trips when grounding current is over the setting
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Communication
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Communication protocol
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Modbus RTU
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Communication port
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RS485
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Function
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Program or monitoring system operation via communication port
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Interface
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Displaying
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LCD screen /touch screen
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Language
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Chinese /English
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Key board
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6-key Touch key board
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Metering
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Voltage
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Three phase line voltage of main circuit
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Current
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Three phase current of main circuit
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Data records
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Fault records
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The latest 15 faults
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Starts records
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Total starts of the SSMs
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