VT Series Stabilizer

From 2 to 10000 KVA

The AC Servo–motor Voltage Stabilizer Series VT, is a voltage regulator that due to its construction simplicity,reliability and robustness has been able to last the passage of the years.

The latest technical improvements, both technical as well as mechanical have been incorporated in this new digital generation.

THE PROBLEM

A classic dilemma out of utility companies control is extension of power line, load variations and huge demand of consumers lead to important of load fluctuations, hence transformed into continuous voltage variation.Fluctuation voltage can cause serious problem to automatic machines i.e. defective end product, inaccurate positioning ( radar system ), blur images, irregular functions, unpredictable readings, incorrect motor speeds, etc.

VOLMATIC, Power Engineering Systems offers the new digital generation of its VT Series AC Servo-motor Voltage Stabilizer to continuously provide strict regulated voltage for the protection of all electric and electronic equipments.

Due to its contruction’s simplicity ( one variable transformer, one booster transformer(*) and one electronic control), reliability and efficiency are two o its best features, offering a stability and profitability difficult to achieve without the protection of a VOLMATIC VT Series AC Servo-motor Voltage Stabilizer. Interconnected between the mains and load assures a correct performance, reduces maintenance costs and improves production. Downtime of an equipment or malfunction of a production plant, even if for a few hours may represent higher cost than the price itself of the VOLMATIC VT Series Voltage Stabilizer.

VOLMATIC ensures you that, in the shortest term intallation of our system will bring you immediate benefits in increasing productivity, profitability and reliability.

THE SOLUTION

The VT Series AC Servo-motor Voltage Stabilizer employs a motor driven variable transformer feeding the primary winding, to a booster transformer(*). Its secondary is connected in series between the supply and the load in order to add or subtract the necessary voltage into the supply line. The solid state Electronic Circuit detector consisting of a differential amplifier continuously monitoring the output voltage, compares it with a fixed reference and the difference is amplified and converted into the frequency proportional to the voltage applied to the step motor driver of the variable transformer.

If the stabilized output voltage fluctuates from the set value due to either supply voltage variation or change in the load current, the electronic control energizes the servo system to rotate the variable transformer brush gear until the current voltage is restored. This methode of stabilization produces no interference or harmonics and subsequently, doesn’t reflect distortion into the incoming mains supply. The action of the servo drive system is extremely fast and by the use of controlled deceleration we hava almost eliminated overshoot. VOLMATIC is consent that a voltage stabilizer has to solve problems, not to create new ones!

FEATURES

• Robust construction, admitting over-loads up to 1000% nominal.
• High output voltage accuracy and stability. > 1% for static or dynamic load variations.
• Fast speed response.
• High efficiency. > 98%, which means less maintenance cost.
• High reliability.
• No distortion.
• Electronic control without electro-mechanical elements.
• Three phase equipments with Star or Delta connection.
• Visualization of main parameters of the stabilizer.

Download

Brochure Volmatic Digital Stabilizer (2.6Mb)