- Variable frequency drives
Electronic devices used to control the speed and torque of electric motors by varying the frequency and voltage of the power supplied. Commonly used in HVAC systems, conveyor belts, and pumps to improve energy efficiency.
- Variable speed starter
A starter designed to gradually increase motor speed and torque. Often used for smooth motor acceleration and deceleration to reduce mechanical stress.
- Vector control
A method of controlling AC motor speed and torque by decoupling the stator current into two components, allowing more precise motor performance similar to that of DC motors.
- Vector motor
A motor designed for use with vector control systems, offering high torque performance at low speeds and dynamic response to load changes.
- Visual feedback control
A system that adjusts operations based on real-time visual input, such as camera monitoring or sensor data processing in automation systems.
- Visual indicator
A light or display that provides immediate, visible feedback of a system’s status, such as LEDs for power or fault signals.
- Visualization
The graphical representation of data, often in SCADA or HMI systems, to allow operators to monitor and control processes efficiently.
- VT Operating Principle
A Voltage Transformer (VT), or potential transformer, is an instrument transformer used to step down high voltage to a safer, measurable value for metering and protection. How it works:- It operates on the principle of electromagnetic induction, with a primary winding connected to the high-voltage line and a secondary winding connected to measuring instruments or relays.
- When AC voltage flows through the primary, it generates magnetic flux in the transformer’s core. This flux induces a lower but proportional voltage in the secondary winding.
- The voltage ratio is directly proportional to the turns ratio of the windings.
Key benefits:- Safety: Allows accurate voltage readings without exposing equipment or personnel to high voltages.
- Isolation: Electrically separates the high-voltage system from sensitive measuring instruments.
- Accuracy: Ensures precise voltage transformation for reliable protection and metering.
Applications include: high-voltage substations, control systems, relays, and industrial power monitoring.
- Voltage feedback control
A control technique that adjusts the output voltage based on a measured feedback signal, commonly used in power supplies and motor controllers to ensure voltage stability.
- Voltage suppressor
A protective device that limits voltage spikes or surges, often by clamping excessive voltage and preventing damage to connected equipment.
- Voltage-type soft starter
A motor starter that reduces voltage at startup using solid-state devices, allowing smoother acceleration and minimizing electrical and mechanical stress.
Published by Leonardo Tomás Cardillo
https://www.linkedin.com/in/leonardocardillo
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