Generac Industrial Generator

2026-11-03

GENERATOR REQUIREMENTS / SPECIFICATIONS The generator rating shall be applicable for continuous service in stand - by application . The generator shall incorporate permanent magnet excitation . The generator housing shall have a single ball bearing support for the rotor . The rotor shall be dynamically balanced up to 25 % over speed . The generator shall have Class H insulation as recognized by NEMA . The field shall be equipped with full amortisseur windings . The voltage regulator shall be of the solid - state design and provide volts per - hertz operation . It shall be mounted on top or side of the generator and enclosed in a ” NEMA RATED ” enclosure . A built - in voltage adjusting rheostat shall provide 10 % voltage adjustment . Generator Peformance The voltage regulation from no load to rented load shall be within a 2 % band of rated voltage . Steady state voltage modulation shall not exceed one cycle per second . For any addition of load up to and including 90 % of rated load , the voltage shall recover to and remain within the steady band in not more than 1 . 5 seconds . The voltage dip shall not exceed 20 % of the rated voltage at any time . The frequency regulation from no load to rated load shall conform to the engine governor performance . For any addition of load up to 90 % of rated load , the frequency shall recover to the steady state frequency within 5 seconds . The generator , by inherent design , shall be capable of sustaining a minimum of 250 % of rated current for a minimum of 10 seconds under a three - phase symmetrical short circuit fault . A resettable 3 phase line current sensing circuit breaker with inverse time verses current response , set to open after a 10 second fault condition , shall be furnished . Control Panel Analog Meters : Line voltage , line current , frequency , power factor and kilowatt ( KW ) shall display values on all phases . Both analog and digital circuit metering is required . The control panel shall be mounted on the generator by the use of vibration isolators in an appropriately rated NEMA enclosure . In addition to the control panel , the generator set shall be furnished with all necessary devices ( switches , sensors , etc .) and wiring harnesses as required to provide a fully functional control system as specified herein . The control panel shall contain , as a minimum , the following : RS - 485 , RS - 232 , and CAN bus ports Programmable I / O module Engine function monitoring and control Full range standby operation Programmable auto crank Service reminders Fault history log Frequency meter , 2 % full scale accuracy AC voltmeter , 2 % full scale accuracy AC ammeter , 2 % full scale accuracy Combination voltmeter / ammeter phase selector switch ( if using analog metering ) DC voltmeter Oil pressure gauge Water temperature gauge Elapsed running time meter , mechanical ( Hobbs meter ) Voltage adjustment rheostat Circuit protection for DC circuity Panel illumination lights Solid state starting , alarm and shutdown controls Test switch / button for indicator lights as applicable “ Run - Off / Reset - Auto ” mode selector switch Mushroom type emergency stop push button Run relay auxiliary contacts Alarm horn with silencing switch Engine cool - down timer ( may be installed in the generator control panel or the automatic transfer switch Over - voltage shutdown control circuitry Indicators for shutdown conditions High water temperature / low coolant level Low oil pressure Over speed Over crank Indicators for status / alarm conditions : System ready Selector switch “ not in Auto Position ” Pre - alarm high water temperature Pre - alarm low oil pressure Low or high AC voltage Low or high battery voltage Low or high frequency High , low , and critical - low fuel level / pressure ( where applicable ) Overload Battery charger malfunction Control Panel Reset Switch : Unit shall have a reset switch that is used to clear unit faults and allow restarting the generator set after a fault condition shut down . 200 Amp AUTOMATIC TRANSFER SWITCH ( Time - Delay Neutral ) ASCO 300 Series 200 Amp , 2 pole , 120 / 240 VAC single phase , 60 Hz , with 2 - Wire Start Circuit 3 Owner ’ s Manuals Relay Expansion Module with Normal and Emergency output contacts Serial RS - 485 Modbus Mult - schedule Engine Exerciser 3000 Entry Event Log Common Alarm Output function IBC Seismic Certified UL Listed 1008 NEMA 1 Enclosure Non - Service Entrance Rated Five - Year Extended Warranty 400 Amp AUTOMATIC TRANSFER SWITCH ( Time - Delay Neutral ) ASCO 300 Series 400 Amp , 2 pole , 120 / 240 VAC single phase , 60 Hz , with 2 - Wire Start Circuit 3 Owner ’ s Manuals Relay Expansion Module with Normal and Emergency output contacts Serial RS - 485 Modbus

North Dakota

2026-04-08