WEG LAUNCHES NEW ENERGY EFFICIENT W22X FLAMEPROOF MOTORS FOR DEMANDING OIL & GAS APPLICATIONS

28th July 2011
Posted By : ES Admin
WEG LAUNCHES NEW ENERGY EFFICIENT W22X FLAMEPROOF MOTORS FOR DEMANDING OIL & GAS APPLICATIONS
WEG is providing global Oil and Gas markets with the highest levels of energy efficiency and protection in hazardous environments, following the launch of its new W22X range of flameproof electric motors, which are being shown for the first time in the UK at Offshore Europe 2011.
ATEX/IECEx certified, the W22X motors are designed to cope with the rigours of aggressive and explosive atmospheres, while delivering the added benefits of high efficiency, (IE2/IE3 energy efficiency rating), minimised noise, vibration, and low operating temperature for increased reliability and safety.

Available for low, medium or high voltage supplies, and with either Ex d or Ex d(e) flameproof protection, the W22X product range covers 2, 4, 6, and 8- pole motors in sizes up to 500 frame, across the power range from 160kW to 1500kW. The first units released in the motor series are frame sizes 500KH: 4-pole, 6kV motors with power ratings up to 1500kW.

The W22X range has CE marking in compliance with EU directive 94/4/EC - ATEX - and is classified as equipment Group I (mines) and Group 11 (surface industries), for gases Group llB and IIC. The range is suitable for use in Zone 1 - Gases and Vapours (G), and Zone 21 - Gases, Vapours and Dust (GO).

The advantage of dual certification for gas and dust is that it makes the W22X range modular and flexible, reducing inventory costs for users by enabling a common motor frame to be used with different types and sizes of terminal boxes.

The introduction of the W22X series of motors means that WEG now serves the global Oil and Gas industry and other hazardous area markets around the world, complementing the existing range of hazardous areas products, which extends from 0.75kW to 40MW, and is available in Ex-P, Ex-N, Ex-e configurations and suitable for Groups IIA, IIB and IIC.

HV & MV Motors For Hazardous, Challenging Oil & Gas Applications:
In addition to the W22X line, WEG also has a comprehensive range of explosion- proof medium and high voltage motors for Oil and Gas applications. Designed in conjunction with the oil industry, the “H” (HV) and “M” (MV) line motors deliver outstanding performance, reliability and safety in the most arduous operating environments worldwide. They combine many years experience gained from such companies as PETROBRAS, with a wide operating range, up to 20MW, and all hazardous area classifications in accordance with the latest ATEX directives.

Utilised on many applications including water injection, multi- stage gas compression and oil pipeline duties, the M-Line is WEG’s cornerstone product for the Oil & Gas market. Designed for larger applications in the output range up to 20MW, the M-Line range utilises a box frame construction that is ideally suited to Ex.p. and pre-start purged Ex.n. applications for zone 1 and zone 2 areas having low leakage rates. The internal dispersement pipes within the box frame ensure an efficient and quick purge cycle thus keeping the cost of providing purging air/ inert gas to a minimum and, more importantly, providing quick start up times for operators.

For smaller applications, WEG’s “H”-Line range offers robustness of construction and is available in safe area, Ex n and Ex e designs. The “H” Line motors cater for medium voltage applications in the range up to 3.15MW and voltages up to 6,600V (50 or 60Hz). Manufactured in IEC frame sizes from 315 to 630, they are compact and extremely reliable machines with sturdy cast-iron frames and high levels of resistance to corrosion.

MV DRIVES CAN ACHIEVE 99% EFFICIENCY:
Complementing the “H” Line motors, WEG’s new MVW-01 range is setting new benchmarks for medium voltage (MV) drive efficiency; achieving 99% with an innovative design that employs Multilevel Topology to minimise component levels, and high voltage (6.5kV) IBGT’s to reduce motor harmonic currents to extremely low levels.

The introduction of the MVW-01 drives means that WEG is one of only a few manufacturers of speed variation systems for Medium Voltage that can offer a total package, including input switchgear, dry or oil-filled phase-shifting transformer, variable speed drive (VSD) and medium voltage motor.

Unlike many MV drives on the market, which have 3 or 5 layer control, the WEG MVW-01 range has just two 2- layers. The benefit of this is a reduction in the number of components in the drive, and commensurate improvements in efficiency and reliability. With energy costs at record levels, the efficiency performance of the MVW-01 drives is all- important. It has been calculated that for every 1% of efficiency lost on 1MW drives, the user will pay an extra £5k per year on running costs – and that figure is just for the drive alone.

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