Category: ABB

Key benefits

Stable and reliable control of your machine:

• Highly integrated and robust AVR for harsh

industrial environment. Stable and accurate

regulation even with highly disturbed voltages.

AVR for various applications:

• Fully configurable I/Os and measurement

inputs and user-specific configurable fieldbus

interface enable easy plant integration.

Easy operation, monitoring and maintenance of the system:

• Intuitive and user-friendly commissioning tool.

Full support for grid codes:

• Certified AVR according to German grid code

including verified simulation models, capable

of analyzing dynamic net faults (FRT);

• Built-in Power System Stabilizer (option),

simulation models and grid code studies available.

Efficient product life cycle management:

• Extended life time of your assets with minimum costs.

Professional technical help always with in your reach:

• ABB’s global excitation service network.

Single or dual channel controllers: the main benefit of a dual channel system is its lower failure rate.

The changeover from one channel to the second channel is done automatically and bumplessly thanks to UNITROL 1000 technology.

This guarantees higher availability of the overall system. It also allows you to stay online if one of the 

channels fails. While a single channel failure would cause a trip of the system,

the dual channel controller allows you to find root cause and fix issue whilst the system stays running.

Full redundancy: in dual channel applications both the channels have independent power supply and allow to be fully redundant in the operation.

Gride code compliant product:

• Many aging units require to be updated to newer standards.

• When PSS is required by the Grid Authority, UNITROL 1000 has the integrated PSS as an option for both systems and devices. 

Meaning you are not required to use any additional device to ensure compliancy with the requirements.

• The UNITROL 1000 FLEX System is supporting an alternative excitation power supply which will keep the synchronous generator online in case of a network fault.

Premounted and tested systems: all systems are already mounted, wired and tested when leaving our factory.

The systems can be mounted into existing or new cabinets easily. This reduce the engineering and commissioning time,

but still offers later configuration on-site by simple configuration and editable documentation.

Why to choose ABB’s UNITROL 1000 FLEX Systems:

 • UNITROL 1020 FULL functionalities

 • All regulation types available: AVR/FCR/PF/ VAR/Limiters

 • Automatic synchronization

 • MODBUS TCP Communication

 • Rotating Diode Monitoring (RDM)

 • Reactive Load Sharing via RS485

Single or dual channel controllers: the main benefit of a dual channel system is its lower failure rate.

The changeover from one channel to the second channel is done automatically and bumplessly thanks to UNITROL 1000 technology.

This guarantees higher availability of the overall system. It also allows you to stay online if one of the 

channels fails. While a single channel failure would cause a trip of the system,

the dual channel controller allows you to find root cause and fix issue whilst the system stays running.

Full redundancy: in dual channel applications both the channels have independent power supply and allow to be fully redundant in the operation.

High ambient temperature rating

The RVT is suitable for harsh ambient environments thanks to

its maximum ambient temperature rating of 70°C.

Multi-voltage and multi-frequency

The RVT may be connected to network voltages in the range

100-460Vac, 50/60Hz. RVT’s measurement voltage is up to

690Vac without connecting any additional PT.

Works with 5A and 1A CT’s

Both 5A and 1A CT’s may be connected to the RVT.

Digital inputs

Two digital inputs can be used for day/night power factor and

external alarm respectively.

Two alarm relay outputs and fan / warning output

RVT has two alarm relay outputs (NO and NC) and a FAN/

Warning relay output.

Programmable protection thresholds

Programmable thresholds allow you to protect the

capacitor bank against over- and under-voltage, over

temperature and excessive harmonic distortions.

Network information and capacitor bank monitoring

The RVT computes and displays network and capacitor

bank information such as voltage, current, harmonics

spectra and much more.

Multi-language support

The RVT allows you to choose its working language

between English, French, German, Spanish and Chinese.

High ambient temperature rating

The RVT is suitable for harsh ambient environments thanks to

its maximum ambient temperature rating of 70°C.

Multi-voltage and multi-frequency

The RVT may be connected to network voltages in the range

100-460Vac, 50/60Hz. RVT’s measurement voltage is up to

690Vac without connecting any additional PT.

Other powerful features

RVT is also a MV and HV bank controller

By connecting a PT to the RVT voltage measurements inputs,

and setting the proper [V scaling] according to the PT ratio,

the RVT is able to control a MV or HV capacitor bank just like

a LV capacitor bank.

Easy commissioning

The fully automatic set-up of the RVT parameters totally eases

the bank commissioning process.

Menu navigation

The clever organization of menus and sub-menus ensures

menu navigation easy and intuitive.

Guided navigation and programming

Online help information guides you step by step in the menu

navigation and RVT programming.

Communication

RVT has versatile communication interfaces: in addition to

Ethernet 10/100BASE-T and USB2.0. the RVT supports

RS485 connection as well. All parameters settings and

measurements are accessible remotely.

Fully automatic set-up

C/k (sensitivity), active outputs, switching sequence and

phase shift can be automatically set-up.

Touch Screen

3.5 inch colorful QVGA touch screen eases your parameter

settings.

Ethernet connection

With ABB PQ Link software, you may easily plug an RJ

45 to RVT and communicate with the controller through a

10/100BASE-T interface anywhere in the world.

USB connection

RVT supports USB2.0 connection; which makes it possible to

connect to a computer via a widely used USB cable to access

all RVT parameters.

Up to 8 Temperature alarm outputs

RVT can monitor 8 hot spots in your bank through eight

daisy-chain connected temperature probes.

Real time clock

RVT real time clock tracks and logs date and moment of each

alarm and event.

Hardware and software lock

Both hardware and software locks are equipped in the RVT

for bank setting protections from any unauthorized access.

Distinct features

Power factor correction for both balanced and

unbalanced loads

In modern day installations, unbalanced loads are increasingly

common, especially in residential or commercial buildings.

RVT addresses your power factor issues from both single

phase loads (L-L or L-N) and three phase balanced/

unbalanced loads. RVT is capable of compensation to

each phase individually or compensation to three phases

globally. Another distinct feature of RVT is individual phase

measurements and energy calculations.

Complete three phase measurements

− Active power (kW) – 3ph/1ph

− Apparent power (kVA) -3ph/1ph

− Reactive power (kvar) -3ph/1ph

− Reactive power (kvar) to reach the target cos ϕ -3ph/1ph

− Voltage (V) -3ph/1ph

− Current (A) -3ph/1ph

− Cos ϕ-3ph/1ph

− Total Harmonic Distortion on Voltage/Current : THD V/I (%)

− Voltage/Current Harmonics : H2 up to H49 (%-spectrum)

2 Relay outputs and a traditional analog output are fitted as

standard, with the option of adding a second analog output or 2

digital inputs/outputs (I/O).

The Endura AZ20 transmitter is equipped with HART

communication as standard, supported by a full Device Type

Manager (DTM) to enable remote access to the analyzer through

a user-friendly graphical interface. The DTM provides full access

to the transmitter setup, logged data and diagnostics

information as well as live data.

The IrDA standard infrared communication port can also be

used with the DTM to upload and download device

configurations. In addition, it enables data logged values and

diagnostics to be viewed on a hyperterminal interface or a PC.

The device’s firmware can also be upgraded using this port.

Advanced diagnostics, in accordance with NAMUR NE107.

classify alarms and warnings as ‘Maintenance Required’,

‘Check Function’, ‘Failure’ and ‘Out-of-Specification’. Cell

performance is monitored by the transmitter; indicators such as

cell impedance, rate-of-response to test gasses and changes in

calibration offset/factor are recorded and analyzed. The current

cell ‘quality’ is displayed by the transmitter as a visual indication

of the measurement confidence; providing the operator all the

information required to keep the monitor operating at peak

performance.

The Performance Log holds up to 100 time-stamped events.

When the log is full, the oldest data is overwritten by new

entries. The log contains details of measurements and

coefficients for all calibrations and accuracy checks.