Medium Voltage Soft Starters The MVC4 Medium Voltage Series Soft Starter is designed to start AC motors in any fixed speedIt provides maximum protection with "True Thermal Modeling," while allowing smooth, stepless control of acceleration and deceleration. guarantees power control and protection for your most important assets. 2300, 3300, 4160, 6000/7200V, 11-15kV VAC +10% to -15%, 50/60 Hz line voltages Up to 10,000HP @ 7.2kV (800 Amps max) Up to 20,000HP @ 15kV (800 Amps max)) 500% - 60 seconds, 600% - 30 seconds Contact factory for higher rating requirements Soft start & protect any AC motor Motor and starter protection is taken to a new level by combining a high-end motor protection relay with a heavy duty solid state starter. Flexible control features and selectable ramping profiles to match any application... no need to compromise performance. High level circuit isolation via fiber optics (standard on all

units) for safety and power quality immunity. Sealed NEMA 12 enclosures are standard equipment, not an expensive option. Soft start & protect any AC motor. The MVC Plus Series starter is designed to start AC motors in any fixed speedThe MVC Plus Series highest rated power devices for maximum current carrying capacity. Rated at 500% forreset home ac unit 60 seconds, the MVC4 Series starter will never be the limiting factor in yourair conditioning unit with heat Powerful sustained gate pulse insures reliable SCR firing without reactorsheat pump ac wall unit (unlike "wimpy" pulse train designs that require a reactor to prevent SCR and Advanced motor protection relay and ramp features programmable via the keypad or a laptop computer.

Fiber optically isolated low voltage compartment with up to 110kV BIL rating for safety and reliability. Built-in 120V control power transformer*; Load-break / fault-make rated disconnect switch with Visible grounding bar for safe operation. Coordinated motor fuses with blown fuse indicators. Line isolation vacuum contactor.* Fully rated bypass contactor for increased thermal capacity and optional across-the-line starting. Heavy duty SCR stack assemblies with ring transformer isolation for reliable SCR gate firing. RTD Option accepts up to 12 RTD inputs. Zero sequence ground fault protection option. Top entry, bottom exit with room for stress cones. Removable entry plates for easy connections. NEMA 12 gasketed enclosure (NEMA 3R optional). monitors the motor for due to starting, running after a complete power thermal condition of the motor, observes the off time via a real-time clock and adjusts the thermal

Non-Volatile Memory stores the thermal memory without the need for batteries. True Time Thermal Tracking adjusts the thermal model for different cooling rates based on motor temperature, running state or power loss. Dynamic Reset Response Reset is only allowed after the motor has sufficient thermal capacity for Thermal Model Biasing adjusts for heating effects of phase current imbalance or optional RTD inputs. Choose the level of overload protection. Programmable Trip Classes selectable from NEMA/UL Classes 5 - 30. Dual Mode Protection separate trip curves for start and run modes (example: Class 20 for start, Class 10 for run). Warning Levels can be programmed and assigned to one of six built-in output relays. Custom Trip Curve programmable based on the motor manufacturer�s data Soft starter is a electrical device specializes for controlling AC motor in soft start, soft stop, light-load energy saving and much more protection features.

Motor soft starter protection: Overheating protection: the soft starter detects the thyristors internal radiator's temperature by its thermal relay, automatic cut down and send alarm signal once the temperature exceeds allowable value. Phase loss protection: the soft starter detects the changes in three-phase line current, to make phase loss protection response once the current off. Overload protection: the soft starter has current control loop to track and detect the changes of the AC motor current, to cut down the thyristor and send alarm signals when motor is overload. Other functions: achieve lots of mixed protection features by combining electronic circuits. AC motor Soft starter This soft starter is designed according to the computer analog test, has the best electromagnetic compatibility. It is proved high quality by the high-temperature ageing test and jigging test which done before the starter out of our factory. Such as low voltage protection, failure voltage protection, over voltage protection, motor overheat or starting ...

Low voltage motor soft starter Gozuk low voltage soft starter is a new type start-up equipment which integrates electric force and electronic techniques computer technique and modern control theory. It is the new generation AC motor starter to replace the conventional star-delta starter, self-coupling voltage-drop starter and magnetic control voltage-drop starter. Cheap soft starter for motor protection Multi starting methods: current limitation start, voltage ramp start, current limitation + voltage ramp soft start.High reliability: high-performance microprocessor to process control system's digital signal.Powerful anti-interference feature: easy adjustment way, the control unit signals are using optical isolation, and set a different anti-noise ... Does a soft starter on fixed speed ... Large motor with soft starter MV Switchgear and Soft Starter ... Soft Starter Parameters Changing Problem of soft starter for new ... Does soft starter suitable for crane?