AIM Manual | Franklin AIM Manual| Franklin Electric - Motor Application » Three-Phase Motors (Page 19)

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  WebThe portion of the total cable length, which is between the supply and single-phase control box with a line contactor, should not exceed 25% of total maximum allowable to ensure . Web3-Wire Control Boxes. Single-phase three-wire submersible motors require the use of control boxes. Operation of motors without control boxes or with incorrect boxes can . WebFranklin Electric is a global leader in the production and marketing of systems and components for the movement of water and fuel. Recognized as a technical leader in its .  


Franklin Electric AIM Manual.



 

Franklin AIM Manual. Preliminary Tests. Open master breaker and disconnect all leads from control box or pressure switch Больше на странице type control, remove lid to avoid electric shock hazard and damage to the meter. Use a megohmmeter set to volt volt minimum. If using an ohmmeter, set to R X k. Zero the meter. Connect one meter lead to any one of the motor leads and the other lead to the metal drop pipe.

If the drop pipe is plastic, connect the meter lead to ground. If the ohms value is normal Table 47the motor is not grounded and the cable insulation is not damaged.

If franklin aim manual ohms value is below normal, either the windings are grounded or the cable insulation aktivasi windows 10 pro n damaged. Check the cable at the well seal as the insulation is sometimes damaged by being pinched. Winding Resistance Fig Use a multi-meter set to 20 ohms or an ohmmeter set franklin aim manual R X 1 for values under 10 ohms.

Use next scale up for values over 10 ohms. On 3-wire motors measure the resistance of yellow to black main winding and yellow to red start winding. On 2-wire motors: measure the resistance from line-to-line.

Franklin aim manual motors: measure the resistance franklin aim manual for all three combinations. If any one value is less than normal, the motor is shorted. If any one ohm value is greater than normal, the winding or the cable is open, or there is a poor cable joint or connection. If some ohms values are greater than normal and some less on single-phase motors, the leads are mixed. See page 48 to verify cable colors. Franklin Electric Co.

   


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