Specification

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What is the SVR Feeder Automatic Voltage Regulator?

SVR Feeder Automatic Voltage Regulator is an electrical device designed to stabilize and regulate the voltage in power distribution lines, particularly in medium and high-voltage systems. It automatically adjusts the voltage output to maintain a stable supply despite fluctuations in input voltage. This regulation is achieved by using an on-load tap changer, which adjusts the transformer’s output in real-time based on the voltage variations detected along the feeder line. These regulators are beneficial when voltage drops or fluctuations are common, such as long transmission lines, urban networks, or industrial zones. They help ensure that the voltage supplied to end users remains within an acceptable range, improving the reliability of the power supply. The SVR system can be installed at various points along the feeder, either mid-line or at the rear, and is often used in substations where the main transformers do not have built-in voltage regulation capabilities. Additionally, SVR feeders are known for their high capacity, low energy loss, compact size, and ease of installation and maintenance.

Features

1. Low Loss:

The SVR Feeder Automatic Isolated Voltage Regulator adopts an auto-transformer structure, which minimizes internal impedance. This leads to low self-loss, making the device highly efficient in power regulation.

2. Comprehensive Protection:

When paired with the company’s circuit breakers and transformers, the regulator features automatic disconnection in case of power loss and automatic reclosing once power is restored. This enhances the system’s automation and ensures safe power delivery.

3. High Supply Reliability:

If the device fails the system automatically switches into bypass mode to maintain a constant power supply and increase overall reliability.

4. Convenient Communication:

The regulator’s intelligent controller supports short-range wireless communication and GPRS for remote monitoring, allowing real-time observation of the regulator’s operation via mobile devices or terminals.

5. Advanced Control Functions:

The intelligent controller employs a high-performance processor with fast signal processing and high detection accuracy, ensuring precise and swift regulation.

6. Lightning Protection:

The system incorporates unique lightning protection measures, enhancing its resistance to interference and ensuring stable operation in environments prone to electrical surges.

Working Principle

SVR Feeder Automatic Industrial 3-Phase Voltage Stabilizer works based on a process of continuous monitoring and regulation of output voltage. The system employs an intelligent controller for comparing the output voltage of a regulator with a pre-set reference voltage. When the output voltage deviates from this reference—either higher or lower—the controller initiates a delayed action to activate the motor inside the on-load tap changer. This motor then shifts the position of the tap changer, moving from one tap to another to adjust the transformer’s voltage ratio. By changing the tap position, the auto-transformer modifies its voltage ratio, effectively stabilizing the output voltage to meet the desired level. This automatic, on-load tap-changing process allows the SVR to regulate voltage in real time without interrupting the power supply, ensuring a consistent and reliable power output even during fluctuations. The delay mechanism in the controller ensures smooth switching between taps, preventing abrupt changes that could affect the system’s stability.

Application

1. Power Transmission and Distribution:

It is essential in electrical grids to stabilize voltage over long-distance transmission lines, especially in substations where main transformers lack voltage regulation capabilities. They are used to ensure consistent voltage supply and reduce line losses in urban and rural networks.

2. Oil and Gas Industry:

In remote oil fields and equipment, as well as process facilities, SVR systems are used to stabilize irregular (fluctuating) power supply and provide reliable electricity to equipment to reduce the risk of production disturbances.

3. Mining:

It provides voltage stability in coal mines and other mining environments with heavy electrical load variations, protects heavy machinery, and increases operational safety.

4. Chemical and Industrial Plants:

It is used by chemical processing plants and other industrial plants with high energy requirements to control power fluctuations, protect equipment that is sensitive to power fluctuations, and maintain efficient operation.

5. Agriculture:

The fully automatic AC voltage regulator is used in rural agricultural settings, indoors and outdoors, where power is distributed through voltage drops, to stabilize the voltage so that power is provided consistently to the irrigation systems, processing equipment, and other agricultural infrastructure.​

Certificate

Factory

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