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- Upgrading Obsolete DELTAs
Upgrading Obsolete GD2000/3000 DELTA Drives with new AVID product
The first air cooled DELTA based drives date back to 1993 with thousands of units in service world-wide sold by Cegelec, ALSTOM and Converteam. They used the OMEGA controller and had the product family names of GD2000 & GD3000. Both the DELTA modules and control...
Upgrading Obsolete Air Cooled MV3000 DELTA Drives with new AVID product
Upgrading Obsolete Air Cooled MV3000 DELTA Drives with new AVID product The MV3000 air cooled DELTA based drives date back to 1999 with thousands of units in service world-wide. In recent years, the DELTA modules have become obsolete due to the non-availability of the SKiiP2® IGBT...
Spare Fan Units for Air Cooled DELTA modules
Spare Fan Units for Air Cooled DELTA modules The Air-Cooled DELTA modules were designed to work with two types of fan unit known as the Standard and the High Performance. This article explains all you need to know about choosing the right spare fan unit. Standard Fan The...
EMC and Bonding
EMC & Bonding in the Cubicle: Quick Guide We all know about requirements for ground/earth bonded connections for electrical safety. However, bonding to ensure EMC noise immunity is also an essential requirement in a drive cubicle. The topic can seem complex but here are some essential...
Guidance on types of coolant for liquid DELTAs
Coolant The recommended coolant is a mixture of water, anti-freeze and corrosion inhibitors and should meet the performance specification of BS 6580 “Specification for corrosion inhibiting, engine coolant concentrate ("antifreeze")” or the equivalent national standard. The coolant must provide: Corrosion protection, scale inhibitors (against hard water); all...