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12 Lead 480 Volt Motor Wiring Diagram -
T1 T4 Dual Voltage Connections Motors that are intended to operate on two voltages such as 240 or 480 volts contain two separate windings for The connection diagrams for dual voltage motors with 12 T leads are shown in Figure 26–8.If the windings are connected in series for operation on 480 volts, the total impedance of the winding is: Rt = R1 + R2 Rt = 48 + 48 Special Connections Some threephase motors designed for operation on voltages higher than 600 volts may have more than 9 or 12 leads. \NNNV Overload— protection Circuit conductors —P M Motor Figure 913: Fifteenlead motor connection diagram Figure 914: Rt = 24 ohms If 240 volts is applied to this connection, 10 amps of current will flow. I. /= 240 ' ~ 24 / = 10 amps If.the windings are connected in series for operation on a 480 volt line as shown in Figure 1410. the total impedance of the winding is 96 ohms. If a dualvoltage motor is to be connected in delta, there must be 12 leads instead of 9 leads brought out at the terminal box. Figure 141 1 shows the schematic diagram of a motor connected for operation as a highvoltage delta.Wiring. Diagrams. DualVoltage ThreePhase Motors Many 3phase motors are designed to operate on two voltages (e.g., 240 and 480 Most dualvoltage motors have nine leads at the terminal box, though some have 12 (see FIGURE 82). to turn the shaft. Once the motor is started, the deltawired run circuit kicks in and the motor runs at full voltage. The difference between 6lead and 12lead.motors is that a 6lead motor works on singlevoltage supply, whereas a 12lead motor is dualvoltage rated and can be wired for 240 volt or 480 volt, threephase supply. but have more torque. Note in Figure 55 that the wye and delta highvoltage diagrams are the same: 4 7, 5 8, and 6 9 are paired together and T1, T2, and T3 This handy, pocketsized guide has been organized by topic field to make finding information quick and easy. The book features an extensive index and is an excellent quick reference for electrical engineers, educators, and students.This book guides readers through experiments that explore electricity, magnetism, and sound.Failure to observe this rule will mean that on first speed the motor will run in one direction.and on second speed in the opposite direction. 1,200 r.p.m., four and six salient pole windings, and a 2parallel star connection for each low speed 900 and 600 r.p.m., 8 and 12pole winding. Figure 12 shows a dualvoltage diagram with 12 leads brought SPEC1AL DIAGRAMS FOR TWO AND FOURSPEED DATA ON SLIPRING MOTOR REWOUND FROM TWELVEPOLE TO EIGHTPOLE Stator Rotor Before After Before After Voltage. 600 900 600 900 Poles. The voltage between collector rings was first calculated from the following formula: Secondary series voltage would or LEAD controller * * *A*|Illustral IWE WIRING Diagram Dr. WALKER ELECTRIC TRucks FIELDSSERIES *A'E'ENT Wiring Diagram for Storage Battery and Generator I have a twocylinder, twocycle,.4% in. bore, 4% in. stroke motor rated at 12 hp., operating at from 400 to 600 rpm. installed in a heavy 21ft. boat with skeg. As shown in the diagram the connections for such a system are as follows: The generator, G, is connected to the main lead wires, Xand the In normal operation all of these draw their share of the current from the generator, G. As the voltage of any generator is dependent upon
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