400Hz Alternators - bei Elektromotoren.de

KEMMERICH ELEKTROMOTORENGmbH & Co. KGKemmerich Elektromotoren 400Hz In DepthInsulation and ImpregnationInsulation materials used provide a system insulatedto Class H level. Superior processes areemployed to add an EG43 compound after insulationover the main and exciter windings to givea very high standard of protection. Higher levelssuch as the black butadiene (rubberized) coatingare also available.ReliabilityStandardized components are used with ‘families’of industrial machines to give very high degreesof interchangeability. Lower component countthroughout the range, and also within individualmachines, has focused efforts to enhance thereliability of the products. In testimony to this, thereliability prediction according to the military standardMIL-HDBK-217F, was a failure rate of 75,82fpmh (failures per million hours), 13,189 hoursmtbf (mean time between failures).Minimum MaintenanceThe design of the 400Hz alternators arebuilt with low maintenance in mind. Bearings haveup to 40,000 hours life expectancy, and windings,including the auxiliary winding, have high degreesof protection. Where maintenance is necessary,access is very simple (ie no PMG (permanentmagnet generator) to remove before replacingand exciter stator. In addition the commonality ofparts improves component availability.AccessoriesA large number of accessories are available onrequest. Including:• Space heaters• Temperature detectors (thermistors or PT100),for windings and bearings• Higher degrees of mechanical protection(IP45 or IP54)• Parallel operation CT’s• Black butadiene winding protectionQuality AssuranceProducts are built in accordance with ISO 9001,accredited by Det Norske Veritas; approvals byCanadian Standards Authority (CSA) and alsoUnderwriters Laboratory (UL) for the insulationsystems.Designs are executed according to the most commonspecifications such as CEI 2-3, IEC 34-1, EN60034-1, VDE 0530, BS 4999-5000, CAN/CSA-C22.2 No.14-95 – No.100-95.Lamination design has been devel oped by finiteelement analysis.Compact DimensionsComparing against the competition, the400Hz alternators are among the most compactand light alternator packages available. Thisincredible fact considers machines are among thehighest efficiency. This highlights the superiorability in the design and productionof their alternators.www.elektromotoren.de3