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If it's a 3-phase motor, you have to swap only two phases. And here are some tips that will help. Set the voltage setting of the insulation resistance tester to 500V. 12 lead out motor is generally with two different set of winding usually for double speed application. 3 Phase motors are usually additonally protected by a thermal overload relay or electronic equivalent which is much more accurate and the same device can be used for single phase if desired. If it stays shorted or does not rise, there is probably an issue with the capacitor and may need to be replaced. How do I reverse the direction the motor runs? It took me a long time to find it. Speed: Single Phase: 3 Typical Voltage: Dual 230/460 Winding: "Y" Start: "Delta" Run Special Feature: 12 Leads. Touch the red probe of the voltmeter onto the post where the red wire is connected. A motor with high resistance will not run - or not run with speed control (as is the case when a 3-phase motor winding opens while running). There are 11 references cited in this article, which can be found at the bottom of the page. This step will require a volt-ohm tester. The most accurate way to test your battery is with a voltmeter. The pair with little FIGURE 6.17 Identifying the circuits of a nine-lead wye-connected motor with unmarked leads. Admin. With a multimeter set to low ohms (usually 200), test between each winding terminal and the metal casing of the motor. But it is important to take safety precautions associated with handling lead batteries and also wear protection for your eyes. (More advanced testing requires specialized tools. Electrically checking a capacitor can be done with the ohm meter. The voltmeter will show a strong deflection on two of the pairs and little or no deflection on one pair (Fig. All motors should be protected by an overcurrent device (MCB) in the consumer unit, and a residual current device (RCD or GFCI). This is a short instructional clip describing how to check winding resistance on a 230/460 volt, 3 phase, 60 Hz, 9 lead motor. This can be determined directly by counting the number of available terminal leads accessible from the induction motor's terminal box. Note: 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. It really shouldn't matter, an AC single-phase motor can be connected either way. These motors should not have these openings blocked or restricted and should not be installed in wet, dirty or dusty areas. Any value less than about 0.2 mega ohms is a reason to discard the motor. Be sure to make sure leads on both ends are not touching anything including the other leads. Hold the bare ends of the conductors together and twist on a wire nut. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Test that the meter is working properly by touching these two leads together - the screen should read zero ohms (or full continuity). You can use a multimeter to check 12-volt car's battery if you have problems. From this Time and Resistance, measure the Capacitance and compare it with the value printed on the capacitor. To check an electric motor to see why it failed, look at the outside for signs of debris that has been sucked into the motor windings, as well as broken mounting holes or feet, and darkened paint that could indicate excessive heat. 6 lead connection is to enable star delta starter. A 12 volt motor transforms electrical energy from a 12 volt battery into mechanical energy to perform work. Do you have same information for 12 lead 3 phase motor? Copyright 2020 Leaf Group Ltd. / Leaf Group Media, My Auto Repair Advice: If Your Car Wont Start Then Keep Reading to Find Out Why, AA1 Car: Diagnosing A Car Battery That Runs Down. However, if you are actually asking, "How do I connect the wires in a motor? Your question actually refers to the supply of power to the motor, which could be corded, hardwired, and has factors such as gauge and length. I was runing a 240v 2kw motor off a faulty generator which I now know was producing less than 240v. What should I test if my fan only works on low speed whether the switch is low or high, and the capacitor tests are fine? Turn on the power supply and measure the time taken for the capacitor to charge to 63.2% of the supply voltage.For example, if the supply voltage is 12V, then 63.2% of this is around 7.6V. At 12 October 2014, 1:54:44 ... At 17 September 2014, 1:07:57 user bulelani wrote: [reply @ bulelani] I was doing my trade test, motor test task. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b4\/Check-an-Electric-Motor-Step-1-Version-5.jpg\/v4-460px-Check-an-Electric-Motor-Step-1-Version-5.jpg","bigUrl":"\/images\/thumb\/b\/b4\/Check-an-Electric-Motor-Step-1-Version-5.jpg\/aid875714-v4-728px-Check-an-Electric-Motor-Step-1-Version-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"