Class H insulations have the highest operating-temperature rating at 1800C. Performance ratings. Low-Side Locked-Rotor Amps: [1000 (/k) x 7.1 kVA/HP x 1 HP] ÷ (1.732 x 208 volts) = 19.7 amps, High-Side Locked-Rotor Amps: [1000 (/k) x 7.99 kVA/HP x 1 HP] ÷ (1.732 x 208 volts) = 22.2 amps. Please click here to find technical data & other useful information. Many years ago, James Watt invented the steam engine. GE Motors (7) Price. T   NEMA standardized The T frame motors after 1964. JP    The suffix letters JP indicate that the jet pump shaft is designed for a packing type mechanical seal. The stator circuit will draw the full-load current indicated on the nameplate (FLA) according to the voltage rating. The synchronous speed of the electromagnetic field rotating about the inner face of a 2-pole electric motor operating at 50 Hz (calculated in the same manner, but replacing the “60 cycles/second” with “50 cycles/second”) is only 3000 RPMs. The thermal capacity of different insulations is rated as Class A, Class B, Class F, or Class H. These specific letters indicate the maximum degree of temperature each type of insulation is designed to handle over a 20,000-hour period with the electric motor operating at full load. The nameplate shown in, Normally used to purchase a replacement motor with identical ratings and operating characteristics, the model number of an AC induction motor, or any other electric motor for that matter, is assigned by the manufacturer. The nameplate shown in, The NEMA full-load efficiency indicates the overall efficiency of the AC induction motor. 10) Horse power / kW. GE, General Electric 5KCP39GG H909AS Electric Motor T77887 Visit the GE Store. GE Motors and Motor Parts Parts Super Center supplies a range of motors and motor components to keep your operations running. "name": "Electric Motor Nameplate Details Explained | Electric Motor Specifications" Each item on the nameplate shown in, The frequency of the sine waveform of the applied AC source is measured in. If connected to operate at 460 VAC, the AC induction motor should draw 1.7 amperes when operating at full load. The wiring connections listed at the bottom of the nameplate have to be honored according to either the “low-voltage” configuration (208 or 230 VAC) or the “high-voltage” configuration (460 VAC). Design C        AC induction motors with the design code letter C exhibit high starting torques with low starting currents. Full-load motor speed is determined by several factors, the main factor being the synchronous speed. To establish some uniformity in the operating characteristics of ac induction motors, not too many years ago NEMA assigned code letters to general purpose motors based on factors such as starting current, % of slip, breakdown torque, and locked rotor torque. The design is a result of much hard work and investment... GE is proud to introduce its new line of medium voltage totally enclosed fan-cooled (TEFC) induction motors called Quantum LMV. In some instances, information not specified by NEMA will also be listed on a nameplate. The synchronous speed of the electromagnetic field rotating about the inner face of a 4-pole motor operating at 50 Hz is only 1500 RPMs.eval(ez_write_tag([[250,250],'electricala2z_com-box-4','ezslot_15',108,'0','0']));eval(ez_write_tag([[250,250],'electricala2z_com-box-4','ezslot_16',108,'0','1'])); The nameplate shown in Figure 1 indicates the motor is rated for operation at 60 Hz. The motor will draw more current than listed as full-load on the nameplate if operated in a mechanical overload condition. Quantum LMV brochure. Smith/ Century Cat. Totally Enclosed Fan Cooled (TEFC) — these enclosures are also in common use. Features and Benefits The nameplate shown in, Induction motors have different operating characteristics determined by their design. HP: 7.5. The letters include C, D, H, J, JM, JP, S, T, U, Y, and Z: C     The suffix letter C designates a flange-mounted electric motor. Synchronous motors are easily recognized by the two slip rings on the rotor shaft. 8 Pages. With a service factor of 1.15, the motor can be overloaded up to 1.15 horsepower. The nameplate shown in Figure 1 indicates this is a dual-voltage AC induction motor. "item": 2) RPM (Revolutions per Minute) & Motor Pole. The nameplate shown in, The serial number, also assigned by the manufacturer, is used to identify a particular electric motor. DC motors are most commonly used in variable speed and torque applications. Periodic Duty — the motor operates intermittently and the load conditions are regularly recurrent. It doesn't matter if the motor is a Fasco, Century, Marathon, Genteq, Emerson or any other brand. Dayton Oval Motor Run Capacitor,5 Microfarad Rating,370VAC Voltage - 2MDV4. Electric Drilling Motors (GE Forms H, R, U and W) GEI-52758; Lubrication Specifications GEI-73029C; Inspection, Maintenance and Basic Overhaul GEK-64271; Inspection and Maintenance GEK-47175; Inspection and Maintenance GEK-64271; Shipping Instructions GEI-69852; Recommended Storage GEK-61777; Removing Motors and Generators from Storage GEK-2818 Designed for use in blowers, fans, pumps, conveyors, material handling, compressors and … The NEMA full-load efficiency basically lists as a percentage the amount of electrical energy supplied to the electric motor that is converted into kinetic energy. Design B motors have sufficient lock rotor starting torque to start most industrial loads. Specifications for this item. The latest Energy Saver design meets EISAct (Energy Independence & Security Act 2007) efficiency levels (which are based on... GE is proud to introduce its new line of medium and high voltage horizontal induction motors called Pegasus MHV. Most industrial AC induction motors are rated 3-phase, which means that the AC power supply is three separate yet interconnected single-phase AC lines with the voltages across the respective windings 120° out of phase with each other. Available from these sellers. 3) Service Factor (SF) 4) Class Insulation. The locked-rotor code letter, which can be listed as either A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, U, or V on the AC induction motor nameplate, is determined by the construction of the squirrel-cage rotor. They include brushless and gear motors, as well as servomotors. When an AC induction motor is classified as;eval(ez_write_tag([[300,250],'electricala2z_com-leader-1','ezslot_12',111,'0','0'])); Continuous Duty — the motor operates at a substantially constant load for an indefinitely long time. In a squirrel-cage rotor AC induction motor, the rotor bars molded in a cast of aluminum have the appearance of a squirrel cage or the paddle wheel on a steamboat. Motor operating temperature is based on the hottest point along the inner surfaces of the motor assembly/enclosure when the motor is operated under full-load conditions. Revolutions per Minute, or RPMs, (also referred to as “baseline speed”), indicate(s) the speed at which the electric motor will operate at rated load. The new motor will not duplicate the older motor’s drive end shaft dimensions or … Each item on the nameplate shown in Figure 1 will be discussed. Extreme-E® motors represent our most efficient running, highest performing line of motors. Motors are electrical devices that convert electrical energy into mechanical energy. In addition to the amortisseur winding, the rotor assembly of an AC synchronous motor consists of an electromagnet. These motors exhibit normal starting torque with the low starting current. The serial number, also assigned by the manufacturer, is used to identify a particular electric motor. The end bells of the cylindrical motor housing have openings to permit ventilation through the motor windings. S      The suffix letter S indicates that the electric motor has a short shaft and is to be directly coupled to a driven load. Although started as an induction motor with the use of an, The locked-rotor code letter, which can be listed as either A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S, T, U, or V on the AC induction motor nameplate, is determined by the construction of the squirrel-cage rotor. Induction motors have different operating characteristics determined by their design. "@type": "BreadcrumbList", The standard frequency of the parallel utility electrical-power grid in Europe is 50 Hz.eval(ez_write_tag([[300,250],'electricala2z_com-medrectangle-4','ezslot_21',107,'0','0'])); The RPM of the electric motor depends on the applied frequency of the AC source and the number of magnetic poles per phase installed in the motor at the point of manufacture. If the horsepower requirements of the intended connected load fall between standard size horsepower ratings, it is generally better to install an electric motor of the next higher horsepower rating and operate it under load, rather than depend on operating the motor in the service factor range to attain the required horsepower rating.