HICO motors are designed, manufactured and tested to meet or exceed the latest NEMA, IEEE and other international standards, and are suitable for all general purpose applications. 

ELECTRICAL SUPPLY    

3-phase, 60 hertz, 575 volt or 230/460 volt usable on 208 volts with current specified on nameplate.  50 hertz and other voltages under 600 can be supplied on request.   

POWER FACTOR   

A term relating apparent power to measured power.   

STARTING METHOD   

All motors are suitable for direct-on-line starting.  Star-Delta and part-winding starting are also available at specified voltage in most motors.   

SERVICE FACTOR   

The amount by which a motor may be safely overloaded beyond its normal rating.  The service factor is applied simply by multiplying it by the rated horsepower.  HICO motors provide a 1.15 service factor as standard.   

AMBIENT TEMPERATURE & ALTITUDE   

Standard motors are designed for operation at an ambient temperature not exceeding 40°C (104°F) and at an altitude not exceeding 1,000 metres (3,300 feet).   

TESTING   

On-line routine tests and complete tests are made in accordance with NEMA MG-1.12 and IEEE-112 testing procedures.  Method "B" is used for efficiency and power factor, while full voltage is used for measuring starting performance.   

RATING   

All standard motors are designed to meet Design "B" performance characteristics in accordance with NEMA standard MG-1.

HICO motors will operate successfully under the following conditions of voltage and frequency variation.  Where the variation of voltage does not exceed 10% above or below normal, or where the variation of frequency does not exceed 5% above or below normal, or where the combined variation of voltage and frequency does not exceed 10% above or below the nameplate rating.  (In this combined case, frequency does not exceed 5%.)   

DIRECTION OF ROTATION   

All standard motors are CCW facing the non drive-end and are reversible depending on how the leads are connected to line voltage.  (Refer to connection diagrams.)    

MOUNTING   

The standard conduit position for foot mount motors is F-1.  F-2 and other positions can be obtained by reversing the rotor.   

INSULATION SYSTEM   

Class F insulation allows for high temperature operation up to 155°C (311°F).  Motors with Class F insulation capability but rated for Class B temperature rise have inherent application margin and flexibility.  This additional temperature capability can be used in several ways. 

• Extended life under normal operating conditions
• Applications where ambient temperatures exceed 40°C (104°F)
• Applications where altitudes exceed 1,000 metres (3,300 feet)
• Applications where power supply voltages or frequency variations exceed allowable values
• Applications where load and duty-cycle requirements exceed the normally rated operating conditions
• Applications where electronic motor controllers may supply the motor with AC power in such a way as to cause an increase in normal operating temperature. 

In addition to many motor performance improve- ments in efficiency, power factor, temperature handling, inrush current, etc., HICO motors can boast of many quality construction features.  They combine the best use of modern materials with manufacturing and quality assurance tech- niques current with the latest state-of-the-art methods used in the motor manufacturing industry.  They are carefully matched to their intended application, mechanically and environ- mentally, as well as electrically. 

EFFICIENCY LEVELS 

HICO High Efficiency motors meet or exceed Canadian "NRCan" and U.S. "EPAct" energy efficiency requirements. 

IMPROVED VENTILATION    

HICO motor designs are taken from test results on motors having improved mechanical construc- tion and ventilation systems.  A substantial increase in heat dissipating capacity has been achieved for the dripproof motor by the design of its ventilation system.  On all but the smallest motors, this is the familiar double-end ventilation design with cooling air drawn in through each end bracket, and expelled through outlets on the frame.  For frames 143T through 445T, the gain in dissipating capacity is about 60% more than that of previous designs.  The longer insulation life built into the new standard for open motors with Class F insulation, combined with an improved ventilation system, adds up to an insulation life expectancy for the dripproof motor that will give the user better value than ever before.    

HIGH EFFICIENCY & LESS VIBRATION    

Electrical loses are significantly reduced by using strictly selected materials.  Quality ball bearings, precision balanced rotors, and better processed frames and end brackets allow for quiet and smooth operation.  HICO motors are engineered through the application of modern computer aided design and calculational methods.    

END BELL HOUSINGS (BRACKETS)    

Heavy cast iron with fully machined rabbet fits and bearing seats for rigid and accurate support of the rotating parts.  Open dripproof end brackets are configured for large volume, low velocity cooling air flow, while still producing the best possible environmental protection for the internal parts of the machine.    

BEARING CAPACITY    

The shaft extension diameters for HICO motors will be the same as previous motors of a given horsepower.  Even though they are in smaller frames, the new motors will generally have the same size or larger bearings than previous designs.    

BEARINGS    

Conservatively rated, double-shielded, regreas- able, single row, deep groove Conrad type made from improved, vacuum degassed steel for longer life expectancy.  Bearings are pre-packed with a quality grade lubricant for ambient temperatures of -30°C to +50°C (-22°F to +122°F), as is the bearing housing during final assembly.  This lubrication will last for an extended period of time up to the normal life expectancy of the bearing under normal application conditions, in a fairly clean and dry environment.  Should regreasing be necessary, provision for easy fill and relief is provided on most motors. 

HARDWARE      

High strength, zinc plated and chromated for corrosion resistance.

Solid cast aluminum squirrel cage rotor core with integrally cast cooling fins for excellent heat transfer.  Rotor core is keyed with a heavy press fit, or heat shrink fitting, to a conservatively sized, large diameter, precision-machined shaft.  Bearing fits on the shaft are normally ground with special attention given to shaft shoulder radius to minimize the possibility of stress concentration points within the shaft.  Rotor and complete shaft assembly are dynamically balanced. 

MOTOR FRAME    

Rugged, durable, corrosion resistant cast iron with fully machined fits for uniform support of bearing brackets and stator core.    

LEAD WIRE    

Class F Hypalon or Class H Silicone rubber depending on motor type, application and temperature rating.     

LEADS      

Stranded copper, suitably insulated for appro- priate insulation class.  All leads permanently identified.  

SLOT LINERS & SEPARATORS    

Dacron mylar Dacron Class F or Nomex Class H depending on motor type, application and temper- ature rating.    

MAGNET WIRE 

200°C (392°F) rated heavy-duty polyester amide- imide overcoat with excellent abrasion and moisture resistance characteristics. 

VARNISH TREATMENT 

Multiple dips and bakes with 100% solid poly- ester resin material.  Oven cured with superior penetration for improved moisture resistance and bond strength. 

WINDING 

Class B, F and H materials of premium grades are used in the motor windings.  HICO enjoys the unique position of being able to pick the best materials and processes developed over many years by the various motor manufacturers and materials suppliers.  They have taken advantage of the many excellent advancements made by the motor industry over the years without making costly and troublesome mistakes that go along with these technological improvements. 

STATOR CORE 

Modern electrical steels are selected and processed in accordance with the electromag- netic requirements of the motor.  Each core is individually checked for proper magnetic charac- teristics to ensure good motor performance prior to the stator being wound. 

FINISH & NAMEPLATE      

Red oxide, zinc chromate primer with a finish coat of semi-gloss, air dried, alkyd enamel.  Stainless steel nameplate furnished for resistance to corrosion. 

CONDUIT BOX 

TEFC motors in frames 143T through 449T, and ODP motors in frames 324T through 449T are supplied with a cast iron conduit box complete with neoprene gasket and threaded conduit entry.  Smaller ODP ratings come with a large, diagonally split, pressed steel conduit box, with cast iron as an option.