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SOFT STARTERS
- 12 to 1200A starter ratings; internal bypass contactor
up to 245A
- Torque control starting
- Total motor protection incorporated
- Digital control and adjustment
- RS232 and RS485 ports for remote control and
supervision
- Property ASCII and Modbus® RTU protocols.
AC MOTOR DRIVES (VFDs)
- Three-phase motor ratings, 0.2 to 315kW range
- Versions: Single or three phase types
- Compact size
- Automatic tuning function
- Sensorless vector control
- Special function for pump and fan duty
- Active earth leakage protection.
AUTOMATIC POWER FACTOR CONTROLLERS
- Version with 5, 7, 8 or 12 steps
- Microprocessor supervision and control
- Accurate current measure in TRMS
- Use in co-generation systems
- Versions with relay or static outputs.
BATTERY CHARGERS
- 1 charging level
- Versions for 2.5 to 12A lead-acid batteries
- Adjustable charging current limitation.
AUTOMATIC TRANSFER SWITCHES
- Supervision of two three-phase supply lines
- Supervision for assistance of generating sets
- Supervision of motorised circuit breakers
- Supervision of events and diagnostic test
- TRMS voltage measures
- Remote control and supervision. |
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With the soft start device SAE 3 a bi-directional power semi-conductor is integrated into one of the phases.
By contolling its firing angle in a time-dependant manner only a small current flows into one of the phases.
The current is steadily increased until the max. current flow angle is reached.
In this way the max. torque is present which is sufficient enough to enable a save start even with drives having a large friction torque at standstill.
The current rise time (running-up time) and the initial torque of the motor can be seperately set.
The settingpotentiometers are accessible by removing the front cover.
When the max. current flow angle is present after the settable starting time has elapsed a relay contact shortens the power semi-conductor, thus removing the starting electronics from the circuitry.
Since only 1 phase is influenced, an asymmetric rotating field is generated which causes a higher thermal loss of the motor. |
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Motor control :
Efficient reduction of torque and starting current
Incandescent or infrared lamp starting :
Reduction of inrush current
Increase in life expectancy
Transformer control (loaded) :
Elimination of saturation current
Improved control and protection
Whatever your application :
Diagnosis of network, load and state of product
Better balance of and less interference on starters
(full control of the 3 phases!)
Simple use faciliting implementation and adjustements
As compact as an electronic contactor
Dimensions |
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Digistart is a multifunctional electronic starter with microcontroller. It is suitable for use on all the three-phase asynchronous induction motors, and assures :
- Starting management: All the traditional systems concerning motor starting (direct, star-delta, etc.) can draw a starting current that can vary between 7 and 9 times the motor rated current.
Digistart, can limit by simple adjustment, ina precise way, the current during the entire starting up phase.
- Protection of motor and driven machine: The starting up, the protection and the system automation imply the numerous elements installation making the electronic cabinets complex and costly. Digistart provides supplementary functions that limits the need for additional equipment with a consequent reduction in cost of material, manpower and running costs.
- Progressive stop control: The impact of harsh stops on certain low inertia applications, especially pumps, induces mechanical shocks, hydraulic disturbance or noise pollution.
Digistart, by generating a voltage at the motor terminals during the deceleration phase, extends the time taken for the motor to come to rest. |
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Electronic soft starters
Easy retrofitting even into existing plants
With bypass relay
Current reduction during acceleration
Extremely simple parameterization with three (four) potentiometers
Economically priced substitute for star-delta starters
Reduction of current/voltage peaks by parameterizable soft start ramp
Soft start with rated motor torque possible for applications with high-inertia starting
When making inquiries, please indicate: motor rating, rated motor current, current consumption of motor, application, number of starts per h
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WEG soft-starters, microprocessor controlled and fully
digital, have been designed to provide high performance
in starting and stopping electric motors. The keypad
offers a friendly interface for parameter adjustment
making the operation much easier.
SSW05
• Power rating: 0.75 to 75 HP (0.55 to 55 kW)
• Power supply: 220 to 575 V
• Built-in by-pass
• DSP control
• Remote keypad (optional)
• Built-in motor protections
• PID regulator
• DSP control
• Ambient Temperature up to 55 C (131º F)
SSW06
• Power rating: 30 to 2650 HP (22 to 1950 kW)
• Power supply: 220 to 575 V
• Built-in by-pass
• Removable HMI with LED and LCD display
• Kick-Start function for loads with high inertia
• Pump control for intelligent pumping system control
• Full digital / 32 bits RISC microcontroller
• Eletronic motor protection
• Ambient temperature up to 55 C (131º F)
SSW07
• Power ratings: 6 to 30 HP
• Voltage: 220...575V
• Built-in Bypass
• Built-in EMC filter
• High starting duty cycle
• Three-phase controlled
• Integral motor and starter protections
• Programmable KICK-START function to start high break-away torque loads
• Remote HMI
• Very compact product
• It is able to operate in 55ºC without derating |
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PETER electronic is developing the VersiStart II series, a new powerful generation of soft starters offering proven quality and dependability in a slim and compact design. Because of its narrow design, the microcontroller-equipped soft starter is extremely space- and cost-saving.
The VersiStart II series can be individually programmed and thus easily adapted to customer-specific requirements. The soft starters are especially suitable for controlled acceleration and deceleration of electric motors and allow, inter alia, jerkless torque increase and current reduc-tion during the starting phase. With this new development, PETER electronic offers a low-priced alternative to star-delta starters and an intelligent solution with a high degree of functionality at low investment cost. |
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These soft starters are microprocessor controlled and are designed to work with asynchronous motors connected in open delta configuration. By using this technique the soft starter can handle more power than when connected in a conventional star circuit. Motors of up to 55kW open delta (37kW star)can be controlled with this range of units.
The M300 range limits the current during start-up and so it is more efficient. All settings are made through a touch panel which incorporates an LED display.
They protect the mains supply from sags and damaging surges (transients), whilst reducing the current demand during start-up. |
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ASTAT%u2122 Solid State Reduced Voltage
GE offers 3 lines of ASTAT solid state reduced voltage starters. The ASTAT SD is a line of compact, high performance three phase starters, available to 25hp @ 460v. The SD is a full functional soft starter with complete starting/stopping control and fault diagnostics. The ASTAT IBP Plus is a line of bypass solid state starters featuring a fully rated bypass contactor. These starters are rated up to 300HP @ 460v. The design is completely wired allowing quick, simple installation into either new or exisxting installations as a replacement for traditional starters. Bypass contactors are a must for enclosed installations where free air movement is not possible. The ASTAT CD Plus is the most full featured starter in the ASTAT lineup. Parameters include soft start voltage ramp, kick-start, current limiting, an energy saving feature, thermistor input, soft stop, pump control, DC injection breaking, communications, jog/slow speed and tachometer feedback.
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