Drallim Industries Ltd

One of Europe's largest airlines recently highlighted chocking problems in adverse wind conditions. Drallim Aerospace was invited to find a method to minimise the phenomena. Drallim devised the aptly named Storm Chock which proved to be the perfect solution to ensure that the aircraft would be securely moored during high wind/storm conditions. This was then added to our range of Aircraft Chocks for the industry. The Storm Chock Assembly is a combined rubber chock and polyester webbing with attachments that make it suitable for securing both nose and main undercarriage of all size airframes. Each lashing has a load rating of 2000Kg (4409lb). The storm chock is designed to be used lashed together in pairs and tightened using the integral ratchet-tensioning device.

One of Europe's largest airlines recently highlighted chocking problems in adverse wind conditions. Drallim Aerospace was invited to find a method to minimise the phenomena. Drallim devised the aptly named Storm Chock which proved to be the perfect solution to ensure that the aircraft would be securely moored during high wind/storm conditions. This was then added to our range of Aircraft Chocks for the industry. The Storm Chock Assembly is a combined rubber chock and polyester webbing with attachments that make it suitable for securing both nose and main undercarriage of all size airframes. Each lashing has a load rating of 2000Kg (4409lb). The storm chock is designed to be used lashed together in pairs and tightened using the integral ratchet-tensioning device.

Storm Chocks. One of Europe's largest airlines recently highlighted chocking problems in adverse wind conditions. Drallim Aerospace was invited to find a method to minimise the phenomena. Drallim devised the aptly named Storm Chock which proved to be the perfect solution to ensure that the aircraft would be securely moored during high wind/storm conditions.

Loss factor (dissipation factor) tan ? analysis.

• On-load tap changer dynamic resistance measurement
• Three resistance measurement channels
• One temperature measurement channel
• Automatic resistance measurement
• Heat Run test
• Rapid automatic demagnetization
• Tap changer motor current monitoring channel
• Automatic discharge circuit
• Built-in tap changer control unit
• Three models: RMO25TD, RMO40TD, RMO60TD

• On-load tap changer dynamic resistance measurement
• Three resistance measurement channels
• Four temperature measurement channels
• Vibration measurement
• Automatic resistance/temperature measurement for the Heat Run test
• Rapid automatic demagnetization
• Tap changer motor current monitoring channel
• Automatic discharge circuit
• Three models: RMO40TT, RMO60TT, RMO100TT

Partial discharge testing - well established for high voltage equipment - becomes increasingly important for insulation systems of a lower voltage level. Changing to switching power supply and to IGBT control of induction motors, for instance, raise demands and testing needs for the insulation system. The modular concepts of Power Diagnostix' instruments allow customized solutions for automated and semi-automated testing.

• Fully automatic demagnetization
• Demagnetization currents 5 mA – 60 A DC
• Demagnetization progress graph
• Automatic discharging circuit
• Lightweight – 13,1 kg / 28.8 lbs

DEM60C is a three-phase, fully automatic test set specially designed for transformer demagnetization. Transformer magnetic core demagnetization requires alternating current applied with magnitude decreasing to zero. DEM60C provides this alternating current by internally changing the polarity of a controlled DC current. During the demagnetization process the instrument supplies the current at decreasing magnitude for each step, following a proprietary software solution. DEM60C is based on a state of the art technology, using the mosta dvanced technique available today. The test set can be used to demagnetize single-phase and three-phase transformers.

For a three-phase operation, the instrument is connected to all the three phases of a transformer to be demagnetized. If specific vector diagrams are selected for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without a need to switch the test hookup cables.

Drallim Industries have installed and commissioned numerous Hydrocal DGA Systems across the UK. These systems have been fully integrated into client networks and we offer full after sales support.