IntroductionThe word burj is Arabic for tower & Burj Khalifa named in honour of the President of the UAE, Sheikh Khalifa bin Zayed bin Sultan Al Nahyan, is the world’s tallest building. The triple lobed footprint of the building is based on the shape of the Hymenocallis desert flower native to the United Arab Emirates. The tower is also the centre piece of Downtown Burj Khalifa, a large scale mixed-use development. Burj Khalifa stands not only for unparalleled luxury, but with a height of over 828 metres, is both an architectural accomplishment and a testimony of human achievement. The structure takes its place in history as one of the world’s great landmarks.

Products & ApplicationARJ supplied and installed Lowara SV series and Vogel MP series water transfer sets (11KW-200KW) and Lowara SV, SHE and SHS series water booster sets (4KW-37KW). The water booster sets are fitted with Hydrovar, a bespoke variable speed drive (VSD) designed for pumping applications. The Hydrovar varies pump speed to ensure the water flow rate meets demand so motors run efficiently and energy is not wasted. Each set comprises 2 duty + 1 standby pump. The sets are factory assembled at the Lowara facilities located in Vicenza, Italy.

ARJ Water Technology Projects, P.O.Box 296025, Dubai, UAE. Tel:+9714 3331535 Fax:+9714 3335774.Email: salesuae@arjgroup.com Website: www.arjgroup.com

Contractor: ETA-Voltas-Hitachi Plant (Joint Venture)Consultant: HyderProducts: Lowara & Vogel Transfer & Booster Sets & Hydrovar Variable Speed DrivesFocus: Hydrovar

Project: Burj KhalifaYear: 2009City: Dubai, UAEClient: Emaar Properties

RESIDENTIAL BUILDING COMMERCIAL BUILDING INDUSTRY IRRIGATION MUNICIPAL SERVICES

HV 2.015 - 4.110 Series

Frequency converter Hydrovar® type for single-phase and three-phase electric motor.

Specifi cationsPower input:1 x 220-240 VAC -10%+15%3 x 380-460 VAC +/- 15%Motor output voltage:3 x 220-240 VAC3 x 380-460 VACPower output: 1.5 - 11 kWBody: IP55Ambient temperature range: 0-52°C (Above 40°C with decreased power only)

Product featuresEasy to install

Direct assembly on pump

Can be retrofi tted on any existing pump

Overheating protection

Overvoltage and undervoltage protection

Overload protection

Pump/s stop/s when not in use

Protection against dry running

Compact design

Pressure or delivery control dependingon system and customer requirements

One pressure booster unit with several

pumps can be controlled without theneed for addition control logic (eachHydrovar can act as master)

Variation in pump acceleration anddeceleration ramps

Automatic pressure drop compensationcaused by the increase in delivery

Analogue signal sent for remotepressure and frequency monitoring

Automatic pump test

All functions indicated on LCD infourteen di�erent languages

Modbus communication included as standard

Up to 8 pumps can be connected (multi-controller mode)

Fixed speed control mode up to 5 pumps (cascade relay mode)

Available in the Basic/Master version for Multi-controller applications and as Single version for single pump applications