V&T drive

1- Motors
2- Generators
2- Drives
3- Electrical & Mechanical items & Spares
4- Cables
5- Instrumentation & Analytical 

Variable–speed drives (VSDs) in few words.

A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.

For reason of energy savings, reduction of operating costs, reduction of machine down time, maximizing productivity and the ability to provide adjustable speed control with standard squirrel cage induction motors, variable speed drives are becoming the essential components in every modern automation system.
The acceleration , deceleration, high speed, low speed, foreword, reverse operation, preset speed, jogging can be programmed by the VSD, it has breaking system that uses DC injection, it’s breaking mechanism use the following principal. First is disconnect the all three phases to motor. Then its supplied 230V DC to two phases. Which operate permanent magnetic field, which hold the motor preventing motor. The speed controlling is done in VSD by changing the value V/F ( Voltage/ Frequency) in the supply to motor

Electric MOTOR in few words

An electric motor uses electrical energy to produce mechanical energy. The reverse process, that of using mechanical energy to produce electrical energy, is accomplished by a generator or dynamo. Traction motors used on locomotives often perform both tasks if the locomotive is equipped with dynamic brakes. Electric motors are found in household appliances such as fans, refrigerators, washing machines, pool pumps, floor vacuums, and fan-forced ovens. Motors operated by small batteries, while technically electric, are often called battery motors.

Most electric motors work by electromagnetism, but motors based on other electromechanical phenomena, such as electrostatic forces and the piezoelectric effect and thermal motors, also exist. The fundamental principle upon which electromagnetic motors are based is that there is a mechanical force on any current-carrying wire contained within a magnetic field. The force is described by the Lorentz force law and is perpendicular to both the wire and the magnetic field. Most magnetic motors are rotary, but linear motors also exist. In a rotary motor, the rotating part (usually on the inside) is called the rotor, and the stationary part is called the stator. The rotor rotates because the wires and magnetic field are arranged so that a torque is developed about the rotor's axis. The motor contains electromagnets that are wound on a frame. Though this frame is often called the armature, that term is often erroneously applied. Correctly, the armature is that part of the motor across which the input voltage is supplied. Depending upon the design of the machine, either the rotor or the stator can serve as the armature.

Motors & Generators

V&T drive through its suppliers can offer most comprehensive ranges of generators for all applications. Based on advanced technology and extensive experience, these Motors & Generators are reliable, durable and can be readily customized. V&T drive can supplies Motors & Generators for every application - making you more competitive!

Standard motors

Low Voltage Motors
V&T drive through its suppliers can offer the widest ranges of low voltage AC motors on market. 

• Explosion Proof Motors & Motors for Hazardous Areas
• Process Performance Motors for demanding applications
• General Purpose Motors for standard applications
• Marine Motors

DC Motors

V&T drive through its suppliers can offer a wide range of DC Motors suitable for almost any application. The motors are designed addressing the following key issues; top performance, reliability and quality. 

 

Drives

• Low Voltage AC Drives
•  Industrial Drives
•  DC Drives
•  Medium Voltage Drives
•  Drive Services 

Low Voltage AC Drives

AC drives are used to control the speed and torque of a standard induction motor, the workhorse of the industry. 

AC drive technology extends the motor speed range from zero to high above the rated speed, increasing the productivity of the driven process. When a low capacity is enough, the drive reduces the machine speed and saves energy. V&T drive can offer the industrial drives which are available both as complete AC drives and as modules to meet the requirements of the users, OEMs and system integrators. These drives are highly flexible AC drives that can be configured to meet the precise needs of industrial applications, and hence order-based configuration is an integral part of the offering. 

Industrial drives 

V&T drive can offer the industrial drives which are designed for industrial applications, and especially for applications in process industries such as the pulp & paper, metals, mining, cement, power, chemical, and oil & gas. 

DC Drives
DC drives continue to be an attractive alternative for machine suppliers. The modern DC converters is easy to operate, compact and low in maintenance. 

DC Drives can be used in most industrial applications as well as for the modernization of old plants. V&T drive with support from its variant suppliers can offer the complete portfolio of three-phase DC drives - from 9 kW (12 Hp) up to 18 MW (24 000 Hp). 

Medium Voltage Drive
V&T drive is cooperating with the market leader suppliers of medium voltage AC drives, the range of supply can come to : 315 kW to 100 MW. 

Medium voltage AC drives are used to control the speed and torque of induction and synchronous machines where high powers are needed. 

V&T drive through its partners can supply the Medium voltage drives which can adapt the machine speed to the actual need, thus optimizing energy consumption.

Instrumentation & Analytical

V&T drive through its suppliers can offer most comprehensive ranges of the industrial Instrumentation & Analytical. Following are the main supplies: 

Instrumentation & Analytical 

• Actuators & Positioners
•  Flow Measurement Products
•  Pressure Measurements Products
•  Analytical Instruments. Ammonia, Chloride, Conductivity, pH, Water, Zirconia and more
•  Device Management & Fieldbus
•  Process Analytics. Cont. gas analyzers, FTIR/NIR spectrometers, Gas chromatographs, Photometers.
•  Recorders & Controlers
•  Temperature Measurement Instruments

For Flowmeters:

V&T drive through its suppliers can offer most comprehensive and widest choice of flowmeters to fulfill your needs 

For Pressure Measurement

 
V&T drive through its suppliers can offer most comprehensive and widest choice of Multi-sensor technology for multi-variable applications. It can offer multiplicity of pressure transmitters and application capabilities.