Automatic Voltage Regulator

Approx. Rs 8,500 / PieceGet Latest Price

Product Details:

1. Voltage Regulation: The core function of an AVR is to regulate the output voltage, compensating for fluctuations in the input voltage or changes in the connected load. This helps in providing a constant and stable voltage output.

2. Automatic Operation: AVRs operate automatically to adjust the voltage levels without requiring manual intervention. They continuously monitor the output voltage and make real-time adjustments to maintain the desired level.

3. Voltage Stability: By stabilizing the voltage, AVRs contribute to the proper functioning and longevity of electrical equipment connected to the power source.

4. Protection Mechanisms: Many AVR units come with built-in protection features to safeguard the connected equipment from voltage-related issues. This may include over-voltage protection, under-voltage protection, and protection against voltage spikes.

5. Compatibility: AVR units are designed to be compatible with various types and models of generators or alternators. They are often used in conjunction with power generation systems to ensure a reliable power supply.

6. Adjustment Controls: Some AVR units feature controls that allow users to manually adjust voltage settings or other parameters based on specific requirements.

Approx. Rs 25,000 / PieceGet Latest Price

Product Details:

Leroysomer R449 Automatic Voltage Regulator(AVR) for the LSA series of industrial alternators provides excitation current up to 6 A with excellent reliability for SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types. The R450 includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. The R450 is also equipped with a Load Acceptance Module (LAM) to handle load impact events.

Approx. Rs 16,000 / PieceGet Latest Price

Product Details:

Stamford MX321 Automatic Voltage Regulator analogue, 3-phase sensing, permanent magnet generator (PMG) powered automatic voltage regulator (AVR) provides isolation from the effects of non-linear loads, improved motor starting performance and sustained short circuit current.

MX321 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for a brush-less generator. Excitation power is derived from a three-phase permanent magnet generator (PMG), to isolate the AVR control circuits from the effects of non-linear loads and to reduce radio frequency interference on the generator terminals. Sustained generator short circuit current is another feature of the PMG system. The AVR senses the voltage in the main generator winding and controls the excitation to maintain the generator output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator. Three phase RMS sensing is employed for superior voltage regulation. Adjustable Soft start circuitry is included to provide a smooth controlled build up of generator output voltage. A frequency measuring circuit continually monitors the shaft speed of the generator and provides under-speed protection of the excitation system by reducing the generator output voltage proportionally with speed below a pre-settable threshold. A further enhancement of this feature is an adjustable volts per Hertz slope and voltage recovery time, to improve the response of turbo charged engines. Current limiting may be included to allow control over the amount of sustained short circuit current. Maximum excitation is limited to a safe period by internal shutdown of the AVR output device. This condition remains latched until the generator has stopped. The AVR includes an over-voltage protection feature with internal shutdown of the AVR output device, plus the ability to trip an optional excitation circuit breaker if required. Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output. An analogue input is provided allowing connection to a Newage Power Factor controller or other external device with compatible output. The AVR has the facility for droop CT connection, to allow parallel running with other similarly equipped generators.

 

Approx. Rs 4,500 / PieceGet Latest Price

Product Details:

The Stamford SX460 Automatic Voltage Regulator is an analogue, 2-phase sensing, self-excited automatic voltage regulator (AVR), was previously used on our UC22 and UC27 alternators. The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage.

• SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals. Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR. The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%. In addition to being powered from the main stator, the AVR also derives a sample voltage from the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator. A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point, (UFRO). This can easily be changed to 50 or 60 Hz in the field by pushon link selection. Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output.

Approx. Rs 6,000 / PieceGet Latest Price

Product Details:

The Sanelec 95SP6  Automatic Voltage Regulator manufactured by Sanelec, a company known for its expertise in voltage regulation and control systems. The AVR is used to maintain stable voltage output for synchronous generators, ensuring consistent performance and protection for both the generator and connected loads. Here’s a detailed description of the Sanelec AVR:

Sanelec AVR Overview


1. Purpose and Function:

• Voltage Regulation: The primary purpose of the Sanelec AVR is to automatically regulate the output voltage of a generator. It ensures that the voltage remains stable and within a specified range, even as load conditions or other operational factors change.
• Excitation Control: The AVR adjusts the excitation current supplied to the generator’s rotor, which is crucial for maintaining the desired voltage level and ensuring reliable generator operation.

2. Key Features:

• Advanced Control Technology: Utilizes advanced control technology, often incorporating microprocessors or digital control systems, to provide precise voltage regulation and stability.
• Automatic Adjustment: Automatically adjusts the excitation system based on real-time feedback from the generator, ensuring optimal performance and voltage stability.
• Adjustable Settings: Features settings that allow for customization of voltage levels, response characteristics, and other parameters to meet specific generator requirements.
• Protection Features: Includes protections against over-voltage, under-voltage, and other potential faults to safeguard both the generator and connected equipment from damage.
• Voltage Sensing: Accurately senses the generator’s output voltage to enable effective regulation and control.

3. Configuration and Operation:

• Connections: The Sanelec AVR is connected to the generator’s excitation system. It includes terminals for voltage sensing and connections to the excitation control circuitry.
• Adjustment Controls: Offers various controls for setting the desired voltage, gain, and response time. These adjustments allow the AVR to be tailored to different generator setups and operational needs.
• Indicators and Displays: May include LED indicators or digital displays to provide feedback on the operational status of the AVR and alert users to any fault conditions.

Approx. Rs 36,000 / PieceGet Latest Price

Product Details:

Leroysomer R449 Automatic Voltage Regulator for the LSA series of industrial alternators provides excitation current up to 7 A with excellent reliability for SHUNT, permanent magnet (PMG) or AREP excitation types. The R449 features voltage droop for genset parallel operation and short circuit current limitation. The R449 is also equipped with a Load Acceptance Module (LAM).

Approx. Rs 3,500 / PieceGet Latest Price

Product Details:

The Kirloskar KAVR H4 is an Automatic Voltage Regulator (AVR) designed for use with Kirloskar alternators and generators. Its primary function is to regulate the voltage output of the generator to ensure a stable and consistent power supply. 

The KAVR H4 AVR is an advanced electronic device used in alternator systems to maintain a steady output voltage. It does this by regulating the excitation current supplied to the alternator's rotor, adjusting for variations in load and operational conditions.

Key Features

1. Voltage Regulation: The KAVR H4 ensures precise control of the generator's output voltage by adjusting the excitation current. This regulation helps maintain a stable voltage output, protecting connected equipment from voltage fluctuations.

2. Digital Control: It incorporates digital technology for accurate and responsive voltage regulation. Digital AVRs generally offer better precision and faster response times compared to analog models.

3. Auto-Ranging Input: The AVR is designed to handle a wide range of input voltages, making it versatile for different generator configurations and applications.

4. Adjustable Settings: The KAVR H4 allows users to adjust settings such as the voltage setpoint, response time, and stability parameters. This flexibility helps tailor the AVR to specific operational requirements.

5. Protection Features: It includes built-in protection mechanisms to safeguard the generator and AVR from overvoltage, undervoltage, and other electrical faults. These protections help ensure the longevity and reliability of the system.

6. User Interface: The AVR is typically equipped with a user-friendly interface for configuration and monitoring. This can include indicators for operational status, fault warnings, and adjustment controls.

7. Thermal Management: Designed to operate reliably under varying temperature conditions, the KAVR H4 includes provisions for heat dissipation to prevent overheating.

Functions

• Voltage Stability: Maintains a consistent voltage output from the generator, which is crucial for the reliable operation of electrical equipment and systems.

• Load Response: Adjusts the excitation current to respond to changes in electrical load, ensuring that voltage remains stable even when the load fluctuates.

• Excitation Control: Manages the amount of excitation current supplied to the alternator's rotor to achieve and maintain the desired voltage output.

• System Integration: Interfaces with other components of the generator control system, such as sensors and control panels, to provide comprehensive control and monitoring.

Approx. Rs 6,500 / PieceGet Latest Price

Product Details:

The Mecc Alte DSR Automatic Voltage Regulator are an advanced digital AVR regulator for generators replacing the traditional automatic voltage regulator. This voltage regulator is fully digital controlled and is fitted as standard across all our ECO and ECP models.

Connections on the DSR regulators are through 15 fast on / fast off connectors which speed up the connection process. This is especially useful if reconnecting a 12 wire machine to any specific voltage. This regulator is cross-compatible with all ECO and ECP machines and can be used as standard with the MAUX system and the PMG ma systems, so there’s never any need to change regulators. Its single phase sensing comes as standard.

By means of the external communication board (DXR or DL1), computer connection (RS232 or USB) or PLC connection (RS485 via MODBUS) is available. This allows changes to the digital AVR settings, to monitor in real-time performances (Voltage, Frequency or DSR status), or to download the alarm report (Communication software is available from Mecc Alte).

Features

• Analogical remote control of output voltage is possible through external voltage (0÷2,5Vdc) or with a 10 Kohm linear potentiometer
• Underspeed protection with adjustable threshold and slope
• Overvoltage and undervoltage alarms
• Excitation overcurrent protection with delayed intervention
• Management of temporary short circuits (start up of asynchronous motors)
• Open collector output (not insulated) signalling intervention of protective devices (insulation on optional DI1 module) with programmable activation with respect to the individual alarms and the possibility to delay intervention
• Abnormal operation conditions storage (type of alarm, number of events, duration of the last event, total time)
• Memorization of the regulator operation time (starting from revision 11 of the Firmware)
• USB communication interface (with an optional USB2DxR module)