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general electric motor specifications

3) Service Factor (SF) 4) Class Insulation. Design D        Like Design C motors, AC induction motors with the design code letter D exhibit high starting torques with low starting currents. Smith/ Century Cat. Z      The suffix letter Z indicates that the electric motor has a special shaft. Instead of FLA, FLC, or RLC, some motor nameplates simply list the full-load current as “AMPS”. 13) Power factor. As the torque requirements of the connected load increase — moving from no load toward full-load — the actual speed of the rotor begins to slow; the stator winding current; the amount of slip; and the delivered torque all begin to increase. 2) RPM (Revolutions per Minute) & Motor Pole. "item": Varying Duty — the motor operates at loads, and for intervals of time, both of which may be subject to wide variation.eval(ez_write_tag([[468,60],'electricala2z_com-narrow-sky-1','ezslot_20',112,'0','0'])); The duty cycle indicates the amount of time the motor is expected to operate. Performance ratings. 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. KW: 5.595. The power to turn on your business. Search - Carbon Brushes by Application, Carbon Brushes by Category, Carbon Brushes by Size. "position": 3, We offer fabricated and pressed-to-size carbon brushes designed to maximize brush life and performance for any given application: Industrial, Fractional Horse Power (FHP), Slip Ring, Traction, Power Tool, Elevator, Fork Lift. DC motors are most commonly used in variable speed and torque applications. Although started as an induction motor with the use of an amortisseur winding on the rotor assembly, synchronous motors are not induction-type AC motors. $395.53. The flange diameter of D frame motors is larger than the body of the motor. "@type": "BreadcrumbList", Rated load occurs when the horsepower requirements of the driven load equate to the horsepower rating of the motor and the electric motor is supplied its rated voltage, as listed on the nameplate, at the rated frequency, as also listed on the nameplate. S      The suffix letter S indicates that the electric motor has a short shaft and is to be directly coupled to a driven load. J      The suffix letter J indicates that the electric motor is specially designed to mount to jet pumps. Century AO Smith B182 Washer Motor, 5 HP, Cap Start Run, 3600 RPM, 208-230V, 56HCZ Frame. It doesn't matter if the motor is a Fasco, Century, Marathon, Genteq, Emerson or any other brand. The XSD Ultra® family of products ranges from 1-300 HP and is built to the highest standards to maximize your return on investment. Electric motors have a rated horsepower (HP) that is determined by the amount of torque they can produce at their running or baseline speed. 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. These motors exhibit normal starting torque with the low starting current. Made by GE. Short-Time Duty — the motor operates at a substantially constant load for a short and definite, specified time. It received its FAA type certificate on September 25. The nameplate shown in Figure 1 indicates this electric motor has a continuous duty cycle. Although there are some single-phase AC induction motors used in industrial applications, the more predominant use is in residential applications. If the motor is connected to the high-voltage operation, as indicated by the terminal connections in the wiring diagram to the right on the nameplate, it will operate satisfactorily on 460 VAC. AC Synchronous motors are easily recognized by the two slip rings on the rotor shaft. This motor was designed by a global engineering team and... GE ValueLine vertical hollow shaft (VHS) WPI product line is a high thrust design intended for deep-well pump applications. 8 Pages. The stator circuit will draw the full-load current indicated on the nameplate (FLA) according to the voltage rating. "item": The allowable overloading is determined by multiplying the horsepower rating on the nameplate by the service factor. Learn how our dedicated team, leading technology, and global reach and capabilities help the world work more efficiently, reliably, and safely. The classification of insulation, which reflects the operating temperature rating of the winding insulation, greatly affects the lifespan of an electric motor. The ValueLine product offering ranges from 5-300 HP and is compatible with a variable speed drive. Universal Universal motors can operate at approximately the same speed and output on either DC or single-phase AC power. The locked-rotor code letter can be used with the kVA values listed in National Electric Code to determine the approximate amount of inrush current that will be drawn from the power supply when the motor is started under load. }. The allowable overloading is determined by multiplying the horsepower rating on the nameplate by the service factor. 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. Wound-rotor induction motors (Figure 3) are easily recognized by the three slip rings on the rotor shaft. "position": 1, 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. This designation specifies the length of time that the motor can safely … 5) Motor Design. Designed for use in blowers, fans, pumps, conveyors, material handling, compressors and other inverter duty applications. Electric motors that operate in hotter climates, like near the equator, should have a higher insulation temperature rating as compared to electric motors, which operate near the United States and Canadian border. No other electric motor purchased from a given manufacturer should have the same serial number. The term phase indicates the number of phases required in the electrical supply … Rated in “pole pairs”, the synchronous speed of the electromagnetic field rotating about the inner face of a 2-pole motor operating at 60 Hz is 3600 RPMs: 60 cycles/second x 60 seconds/minute = 3600 cycles (rpms) /minute. They also include servomotors. "url": "https://electricala2z.com/category/motors-control/", 12) Time rating. 10) Horse power / kW. For one horsepower and assuming the motor will operate on 208 volts, the 3-phase AC power formula, solved for current, can be used to determine the inrush current range of this motor. The following specifications documents and dimension charts are available as Acrobat PDF files: { For more information on what General Electric motors can do for you visit them at this link . "@context": "http://schema.org", Interconnected in a wye configuration on one common end, the other ends of the three single-phase windings are connected one each to the three slip rings.eval(ez_write_tag([[250,250],'electricala2z_com-large-mobile-banner-2','ezslot_7',114,'0','0'])); Figure 3. GE rises to the challenge of building a world that works. The nameplate shown in Figure 1 indicates this motor is rated at 1 horsepower. Selecting an electric motor with a service factor greater than 1 allows for cooler winding temperatures when the motor is operated either at rated load or at less than rated load; it protects the motor against intermittent heat rises; it helps to offset the excess heat produced by the variance in the single-phase AC winding currents due to low or unbalanced line voltages. The nameplate shown in Figure 1 indicates the motor enclosure is rated ODP. A frame 145T frame, listed in, 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 NEMA full-load efficiency indicates the overall efficiency of the AC induction motor. If connected to operate at 460 VAC, the AC induction motor should draw 1.7 amperes when operating at full load. Any electric motor with the letter T at end of the numerical frame size was manufactured after 1964. The nameplate shown in, Key Technical Considerations for Cloud Deployments. Menu. Marathon Cat. Depending on the application, electric motors will have different types of enclosures. "position": 2, When registering an electric motor for the manufacturer’s warranty, listing the model number identifies the type of motor placed under warranty, whereas the serial number segregates this particular motor from any other electric motor in the plant or another manufacturing facility. If the motor is connected for low-voltage operation, as indicated by the terminal connections in the wiring diagram to the left on the nameplate, it will operate satisfactorily on either 208 or 230 VAC. DC Motors: Learn more. Each item on the nameplate shown in Figure 1 will be discussed. 11) Locked rotor code. The stator winding current will be of low or minimum value; the slip will be near zero, and the delivered torque will be near zero. The motor will draw more current than listed as full-load on the nameplate if operated in a mechanical overload condition. Category: General Purpose, Severe Duty. The remaining power is a loss that is converted mostly into heat. Totally Enclosed Nonvented (TENV) — these enclosures are designed to be frequently hosed down. The end bells and the cylindrical motor housing are sealed to prevent the entrance of moisture or dirt. Once started, DC power is applied to the winding of the electromagnet through the two slip rings. Often the outer surface of the cylindrical motor housing is molded with fins to increase the outer surface area of the housing. JP    The suffix letters JP indicate that the jet pump shaft is designed for a packing type mechanical seal. The suffix letter Y does not indicate what the special mounting configuration is, only that it is nonstandard. Motor Standards: NEMA. A JM frame electric motor also has a 56C face. As discussed in Section 3, Revolutions per Minute, the rotor circuit in an induction motor does not have an external power supply: Voltage is induced in the rotor windings by the revolving electromagnetic field in the stator assembly when power is applied to the stator windings.eval(ez_write_tag([[336,280],'electricala2z_com-mobile-leaderboard-1','ezslot_17',113,'0','0'])); Most AC motors listed as induction will be the squirrel-cage type, which describes the type of rotor used in the electric motor — the rotor bars molded in a cast of aluminum have the appearance of a squirrel cage or the paddle wheel on a steamboat (Figure 2). NEC stipulates “any motor application shall be considered to be for continuous duty unless the nature of the apparatus it drives is such that the motor cannot operate continuously with the load under any condition of use.”.

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