How To Wire A 9 Lead Motor
Using the machine on the higher rating the external connection is the same either way. Both 9-wire and 12-wire motors can be connected for high- or low-voltage operation.
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The dual operational voltage rating values of the motor is determined from the motors nameplate.
How to wire a 9 lead motor. A most commonly used example is a 9 leads motor intended for 220 and 440 volts operation. W2 CJ2 UI VI WI W2 CJ2 UI VI WI A cow VOLTAGE Y HIGH VOLTAGE z T4 Til T12 10 Til T4 T5. Pair off the sets of two.
Connect a large 9 volt DC battery -dc terminal to 8 and flash the dc terminal to 9. Flash 8 with the battery terminal. An upscale kick will identify the 2 motor lead.
Wiring Diagram Sheets Detail. It shows the elements of the circuit as simplified shapes and the power as well as signal connections between the gadgets. Finally move batter to 8-9 pair with lead on 8 and negative flashed to 9.
I also provide some simplified read right-ish information about the electrical nature of the motor. ALWAYS USE WIRING DIAGRAM SUPPLIED ON MOTOR NAMEPLATE. To properly test this type of motor remove the wire-nuts joining leads 4 and 7 5 and 8 and 6 and 9.
Collection of 3 phase motor wiring diagram 9 leads. A 9-wire motor can only be connected in a Wye configuration whereas a 12-wire motor can be connected in either a Wye or Delta configuration. L1 to T1 L2 to T2 L3 to T3 T4 to T7 T5 to T8 and T6 to T9.
Once youve identified all 9 leads the motor can be safely energized and you know the connections are correct. The sets that will become 3 6 and 2 5 will show a large inflection in the needle. Megger testing procedure for 9 lead wye motor.
In Figure 1 the leads are numbered and the individual coils are. Mark the 1 set of 3 as 7 8 and 9. Find lead 3 by looking for a positive deflection on one of the other pairs.
--WYE CONNECTION Identify the 9 lead motor- if we dont have any numbers of s. Move the battery to the 7-9 leads with positive the 9 lead and negative on the 7 lead. Connect one of the DC voltage-source leads to T8 then make and break flash the circuit by intermittently touching the other lead to T9.
On the lower voltage rating though the external connection will be different for wye- and delta-connected. The positive voltmeter lead should be on this lead and the negative lead should be on the 6 motor lead. Steve shows how to identify unmarked 9 lead WYE connection on a motor.
With an upscale deflection the voltmeter lead will be on 2 and the volmeter lead will be on 5. Find 1 set of 3. Test between all 3 sets of two with an analog millivoltmeter.
I check the windings in the motor for my Bradford Lathe. Each of these designated voltages requires different methodology of wiring connection in order to run the motor in either 220 or 440 volts operation. Connect the voltmeter leads 2 5 connect the battery terminal to 9.
3 phase motor wiring diagram 12 leads Name motcon10 Views Size 24 0 KB. ALWAYS USE WIRING DIAGRAM SUPPLIED ON MOTOR NAMEPLATE - colored leads are only applicable on the NEW ROLLED STEEL motor lines - Single-Phase Wiring Diagrams. The wiring diagram for a wye connected 9-lead motor is as follows.
Wye connected 9-lead wiring diagram Note that the wye-connected 9-lead motors internal connections vary from the delta motor. Positive deflection on the meter will identify 2 lead and the other is 5. Shift the battery to the 8 9 pair with the positive battery lead on the 8 lead and the negative used for the flashing.
Next locate Tl and T4. Find 3 sets of 2. If leads are numbered 1 to 9 the motor is typically rated for two voltages and could be designed with either a wye or delta connection.
3 phase motor wiring diagram 12 leads. Manufacturers nameplate for Delta connected 9-lead motor According to the table above for a high-voltage connection the electrician would connect L1 to lead 1 L2 to lead 2 L3 to lead 3 wire-nut 4 7 together wire-nut 5 8 together and wire-nut 6 9 together. The other lead is 6.
Permanently label the leads in the set of three with numbers T7 T8 and T9 as shown. Refer to Figure 1 for a detailed internal wiring diagram. Any help would be greatly appreciated RE.
A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. Coils II III and IV are permanently connected and cannot be separated.
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