Motor Load

The corrected horsepower should be close to but not exceed the contract horsepower specified by SPX. Determine corrected horse- power using the following equation.

Actual volts and amperage must be obtained with the fan running and the specified rate of water flowing over the tower after the motor and Geareducer have reached operating temperature (approximately 30 minutes of operation).


		HPC =	VOLTSA × AMPSA × DENSITYD			× HPN
		HPC =	VOLTSN × AMPSN × DENSITYA			× HPN
			VOLTSN × AMPSN × DENSITYA
HPC	=	Corrected Horsepower		VOLTSN	=	Nameplate Volts
VOLTSA	=	Actual Volts		AMPSN	=	Nameplate Amperage
AMPSA	=	Actual Amperage		HPN	=	Nameplate Horsepower
DENSITYA	=	Actual Air Density		DENSITYD	=	Design Air Density

Measurements taken on motors operating with Variable Fre-

Notequency Drive controls may read up to 15% high from errors in measuring the approximated sine wave. Instruments capable of measuring a squared off wave form accurately should be used for measuring power in this situation.

Do not exceed 30 sec/hour total motor starting time as motor may overheat.

03-11A specifications

SPX Cooling Technologies is renowned for its innovative solutions in the cooling industry, and one of their prominent products is the SPX Cooling Technologies 03-11A. This equipment is designed to provide efficient cooling for various applications, making it an essential component in many industrial and commercial settings.

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