ABB UNITROL UN 0025 a-P V .1 (UN0025a-P Var.1) 25 kVA automatic voltage regulator (AVR)-Saul Electric

Product Description

The ABB UNITROL UN 0025 a-P V .1 is a 25 kVA automatic voltage regulator (AVR) for synchronous generators. It is designed for use in a wide range of applications, including industrial, commercial, and utility power plants. The UN 0025 a-P V .1 is a microprocessor-based AVR that features a variety of advanced features, including:

Precise voltage regulation
Fast response time
Comprehensive protection features
Easy programming and operation

Product Parameters

Rated output: 25 kVA
Input voltage range: 380-480 V AC
Output voltage range: 380-480 V AC
Regulation accuracy: ±0.5%
Response time: <10 ms
Protection features: Overvoltage, undervoltage, overcurrent, reverse power

Usage Method

The ABB UNITROL UN 0025 a-P V .1 is typically installed in the control panel of a synchronous generator. It is connected to the generator’s output terminals and to the exciter’s control terminals. The AVR is programmed to maintain a desired output voltage, regardless of changes in load or speed.

To program the AVR, the user can use the front panel controls or a computer with the CMT 1000 software. The CMT 1000 software allows the user to view and modify all of the AVR’s parameters.

Product Application

The ABB UNITROL UN 0025 a-P V .1 is suitable for use in a wide range of applications, including:

Examples of Product Application

The UN 0025 a-P V .1 can be used to regulate the voltage of a synchronous generator that is used to power a manufacturing plant.
The UN 0025 a-P V .1 can be used to regulate the voltage of a synchronous generator that is used to power a commercial building.
The UN 0025 a-P V .1 can be used to regulate the voltage of a synchronous generator that is used to power a utility power grid.
The UN 0025 a-P V .1 can be used to regulate the voltage of a standby generator that is used to power a hospital in the event of a power outage.
The UN 0025 a-P V .1 can be used to regulate the voltage of an emergency generator that is used to power a fire station in the event of a power outage.
The UN 0025 a-P V .1 can be used to regulate the voltage of a marine generator that is used to power a ship.

UNITROL® Excitation Systems

Excitation systems are a key component in many power generating units used by plant owners and operators to achieve reliability of operations, stability and fast transient response of their assets, as per grid requirements.

UNITROL® 1000 Series

The UNITROL® 1000 Series is ABB’s brushless excitation system for applications using synchronous machines ranging from 100kVA to 80MVA.

UNITROL® 1020

UNITROL 1020 is the voltage regulator intended for small and medium synchronous generators and industrial machines. It combines performance control and power circuits with a simple mechanical design provides high performance in a wide range of temperature and vibration conditions .

With built-in dual channel support, advanced load sharing between machines operating in parallel, rotating diode monitoring, automatic synchronizing and several integrated communication options, this automatic voltage regulator (AVR) is manufactured using the most advanced microprocessor technology and IGBT semiconductors allowing current output up to 20 ADC for continuous operation.

UNITROL® 1010

UNITROL® 1010 is the Indirect Excitation System for small and medium synchronous generators and industrial machines. Its advanced microprocessor technology and IGBT semiconductors allow for current output up to 10 ADC for continuous operation.

With built-in dual channel support, advanced load sharing between machines operating in parallel, rotating diode monitoring, automatic synchronizing and several integrated communication options, UNITROL 1010 provides high performance in a wide range of temperature and vibration conditions.

UNITROL® 1005

UNITROL 1005 is the smaller component of the family designed for low-end excitation application with maximum excitation current up to 5 ADC.
Like all UNITROL1000 products, UNITROL 1005 is based on the same target software source code and share the same simulation models that makes it very suitable for demanding grid code applications.

Included in the package is CMT1000, the tool for focused and fast commissioning.

UNITROL® 1000 Flex Systems

UNITROL® 1000 FLEX Systems are prepackaged solutions for applications requiring single or dual channel controllers. All systems are fitted with UNITROL® 1020 FULL as a standard device, leveraging the best solution for optimum price and flexible project adjustment constraints.