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HITACHI KT SERIES

SPLIT PHASE MOTOR

All single-phase motors work basically the same. It is the way the are started that differs. In order for a single-phase induction motor to work the rotor has to be subjected to a rotating magnetic field. This is produced in the stator coils of the split-phase motor by having start windings positioned with their axes 90° electrical in relation to the run windings.

KT Series Rating : 0.09kW (90W) ▪ 0.18kW ▪ 0.25kW ▪ 0.37kW (4Pole) 

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HITACHI KR SERIES

CAPACITOR START CAPACITOR RUN MOTOR

The most complicated and expensive single-phase motor is the Capacitor-Start/Capacitor-Run Motor. These motors contain both a starting and running capacitor. Smaller sizes will generally have two capacitor enclosures on the top of the motor, while larger sizes may have both capacitors in a large housing on the side of the motor. Capacitor-start/capacitor-run motors are used over a wide range of single-phase applications primarily for starting hard loads. They are available in sizes ranging from ½ to 25 horsepower; however, common sizes are between 3-and-10 horsepower. Maximum sizes allowed are generally dictated by the electrical power supplier. The speed of this motor varies about 10% from no load to fully loaded conditions. Some capacitor-start/capacitor-run motors are available as multi-speed motors with two-or-three fixed operating speeds when appropriate control equipment is used.

KR Series Rating : 0.09kW (90W) ▪ 0.18kW ▪ 0.25kW ▪ 0.37kW ▪ 0.75kW (4Pole) 

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HITACHI KQ SERIES

CAPACITOR START MOTOR

Capacitor Start Motors are similar in construction to split-phase motors. The major difference is the use of a capacitor connected in series to the start windings to maximize starting-torque. The capacitor is mounted either at the top or side of the motor. They are commonly referred to simply as "Capacitor-Start Motors." Capacitor-start motors are available for applications ranging in size from 1/6-to-10 horsepower. They are generally limited to sizes of 3 horsepower (or less) due to high starting current concerns. The speed of this motor varies about 10% from no load to fully loaded conditions. Some capacitor-start motors are available as multi-speed motors with two-or-three fixed operating speeds when appropriate control equipment is used.

KQ Series Rating : 1.1kW ▪ 1.5kW ▪ 2.2kW ▪ 3.75kW ▪ 5.5kW ▪ 7.5kW (4Pole) 

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HITACHI KP SERIES

CAPACITOR RUN MOTOR

Capacitor Run Motors are technically referred to as "Permanent-Split Capacitor (PSC) Motors" in most manufacturers' literature. Generally available sizes of capacitor run (PSC) motors range from fractional sizes up to 5-horsepower with most being less than 3-horsepower. They come in a wide variety of synchronous speeds. The speed of this motor varies about 10% from no-load to fully loaded conditions. Capacitor-run motors are available as multi-speed motors with two, three, or even four fixed operating speeds when appropriate control equipment is used.

KP Series Rating : 1.1kW ▪ 1.5kW ▪ 2.2kW ▪ 3.75kW ▪ 5.5kW ▪ 7.5kW (4Pole) 

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KT Series Split Phase Start - Design for Applications :

Drilling Machine ▪ Blower (Simple Structure)

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KR Series Capacitor Start - Design for Applications :

Conveyor ▪ Pump (High Starting Torque)

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KQ Series Capacitor Start Capacitor Run- Design for Applications :

Compressor (High Starting Torque & Low Running Current)

 

KP Series Capacitor Run- Design for Applications :

Fan (Low Starting Torque & Low Running Current)

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