inverter duty motor rewinds - e longo · largest independent electrical-mechanical sales &...

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Largest Independent Electrical-Mechanical Sales & Service Firm in the Tri-State Area Philadelphia Servicenter 1400F Adams Road Bensalem, PA 19020 Tel: 215-638-1333 Fax: 215-638-1366 Linden Servicenter 1625 Pennsylvania Ave. Linden, NJ 07036 Tel: 908-925-2900 Fax: 908-925-9427 DAILY PICKUP IN THE NORTHEAST e-mail: [email protected] Web site: www.elongo.com LONGO © 2011 New York Servicenter 829 E. 144th St. Bronx, NY 10454 Tel: 718-585-5330 Fax: 718-585-5337 Wharton Servicenter 1 Harry Shupe Blvd. Wharton, NJ 07885 Tel: 973-537-0400 Fax: 973-537-0404 Service Through Knowledge ® Since 1945 INVERTER DUTY MOTOR REWINDS Specify the Longo Engineered Inverter Duty Rewind (SURGE SHIELD ™) System for your inverter motors which are (or better be) used on all adjustable speed drive (ASD) applications. Modern solid state drives use pulse width modulation (PWM) to vary the voltage/frequency ratio. But PWM drives using IGBT (insulated gate bipolar transistor) switching generate a wave form spike up to 2000 volts which can damage the stator winding! Longo's exclusive SURGE SHIELD ™ winding system is backed-up by our 3 year warranty. This means that your inverter motor can run safely and reliably in the face of repetitive up to 20,000 per second voltage surges. • Inverter-Duty magnet wire resists high frequency pulses, i.e. spikes • Increased insulation: - to ground - on coils and end turns - between phases - between turns • VPI - with epoxy resin • Special impregnation process to exclude voids in insulation - the real “CULPRIT” • End turns get special bracing • Coils are interlaced • DuPont's class “H” NOMEX® throughout Can your Drive Motors survive this test? Siemens · Cutler-Hammer · US Motors · Baldor · WEG · Mody · Delta · TECO · BJM · KSB · AC Tech · FS Elliott · FS Curtis · Lenze· Leeson · Ruhrpumpen · North American · AeroVent/Twin City · Burgmann Authorized Distributor for Authorized Factory Service for KSB · Ruhrpumpen · Mody · BJM · FS Elliott 24 HOUR EMERGENCY SERVICE 973-537-0400 973-537-0400 Three year electrical warranty (Alpha-Gamma™) applies on all NEMA frame rewinds S E R V I C E S A L E S E N G I N E E R I N G ®

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Largest Independent Electrical-Mechanical Sales & Service Firm in the Tri-State Area

PhiladelphiaServicenter1400F Adams RoadBensalem, PA 19020

Tel: 215-638-1333Fax: 215-638-1366

Linden Servicenter

1625 Pennsylvania Ave.Linden, NJ 07036

Tel: 908-925-2900Fax: 908-925-9427

D A I L Y P I C K U P I N T H E N O R T H E A S T

e-mail: [email protected] Web site: www.elongo.com

LONGO © 2011

New YorkServicenter

829 E. 144th St.Bronx, NY 10454

Tel: 718-585-5330Fax: 718-585-5337

Wharton Servicenter1 Harry Shupe Blvd.Wharton, NJ 07885

Tel: 973-537-0400Fax: 973-537-0404

Service Through Knowledge® Since 1945

INVERTER DUTYMOTOR REWINDS

Specify the Longo Engineered Inverter Duty Rewind (SURGE SHIELD ™) System for your inverter motors which are (or better be) used on all adjustable speed drive (ASD) applications. Modern solid state drives use pulse width modulation (PWM) to vary the voltage/frequency ratio. But PWM drives using IGBT (insulated gate bipolar transistor) switching generate a wave form spike upto 2000 volts which can damage the stator winding!

Longo's exclusive SURGE SHIELD ™ winding system is backed-up by our 3 year warranty. This means that your inverter motor can run safelyand reliably in the face of repetitive up to 20,000 per second voltage surges.

• Inverter-Duty magnet wire resists high frequency pulses, i.e. spikes• Increased insulation:- to ground- on coils and end turns- between phases- between turns• VPI - with epoxy resin• Special impregnation processto exclude voids in insulation - the real “CULPRIT”• End turns get special bracing• Coils are interlaced• DuPont's class “H” NOMEX® throughout

Can your Drive Motors

survive this test?

Siemens · Cutler-Hammer · US Motors · Baldor · WEG · Mody · Delta · TECO · BJM · KSB · AC Tech · FS Elliott · FS Curtis · Lenze· Leeson · Ruhrpumpen · North American · AeroVent/Twin City · Burgmann

Authorized Distributor for

Authorized Factory Service forKSB · Ruhrpumpen · Mody · BJM · FS Elliott

24HOUR

EMERGENCYSERVICE

973-537-0400973-537-0400Three year electrical warranty (Alpha-Gamma™)

applies on all NEMA frame rewinds

S E R V I C E S A L E S E N G I N E E R I N G

®