400HPB.pdf
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- Attached to
- Replacement Variable Frequency Drives (VFD’s) for the Dredge Goetz Federal contract opportunity
- Solicitation number
- W912ES20Q0026
About this file
This document contains a data sheet for a 400 horsepower electric motor and information on a related federal contract opportunity for replacement variable frequency drives.
The data sheet provides technical specifications for a 400 HP electric motor rated for 298kW output at 575V and 40Hz, including electrical characteristics like current draw and efficiency, mechanical details like mounting options and weight, environmental operating conditions, cooling requirements, and protective features.
The associated federal contract opportunity is a solicitation issued on September 3, 2020 by the U.S. Army Corps of Engineers Engineering District St. Paul to replace variable frequency drives on the dredge Goetz. The solicitation does not include pricing terms, response deadline, or other procurement details beyond the general description provided.
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Text version
DATA SHEET FOR 400 HP MOTOR Doc. DS-400 Rev. 00
ELECTRICAL
Rated Output 298kW (400 HP) Base Voltage 575V, 3Ø Base Frequency 40 Hz Base Speed (@ Rated Temp.) 1,174 RPM Maximum Speed 3,000 RPM Horizontal Mount
2,400 RPM Vertical Mount Duty SI Continuous Full Load Current 374 Amps Power Factor (100% Load) 0.85 Efficiency 94% Number of Poles 4 Full Load Torque 1,790 ft-lbs (2427 Nm) Peak Torque 5,768 ft-lbs (7820 Nm) Insulation Class “H” Rs @ 25˚C (Cold Stator Resistance) 10.47 mΩ Rs @ Tmax (Hot Stator Resistance) 13.59 mΩ Ls (Stator Inductance) 0.207 mH Rm (Magnetizing Resistance) 38 Ω Lm (Magnetizing Inductance) 9.17 mH Rr @ 25˚C (Cold Rotor Resistance) 11.77 mΩ Rr-Tmax (Hot Rotor Resistance) 16.94 mΩ Lr (Rotor Inductance) 0.249 mH No Load Current @ 1.0 p.u. V/F 141 Amps No Load Current @ 0.9 p.u. V/F 109 Amps No Load Current @ 0.8 p.u. V/F 87 Amps No Load Current @ 0.7 p.u. V/F 73 Amps No Load Current @ 0.6 p.u. V/F 60 Amps No Load Current @ 0.5 p.u. V/F 48 Amps Base Speed @ 25˚ C 1,180 RPM
MECHANICAL ARRANGEMENT
Mounting Vertical or Horizontal Shaft Material ASTM 4140 Rotation Reversible Balance ISO G2.5 Weight 3,200 lbs (1,451 kg) Moment of Inertia 132.1 lb-ft²
ENVIRONMENTAL
Ambient Temperature -20˚C to +60˚C @ 400 HP Maximum Altitude Up to 1000mASL (3250ft)
COOLING
Cooling Method Separate Forced Ventilation Air Flow 1,300 CFM Air Pressure Drop 2.5” H20
BEARINGS
PE Cylindrical Roller Bearing OPE Ball Bearing Lubrication System Grease
PROTECTION
Bearing Temp. Alarm Set Point 80˚C Bearing Temp. Trip Set Point 95˚C Stator Temp. Alarm Set Point 160˚C Stator Temp. Trip Set Point 170˚C
APPROVED: ________________________________ DATE: ________________________
julfer
JH_9-22-08
julfer New Stamp
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