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! ! ! ! • Motor Information SUPPLY How to Measure What It Means GRUNDFOS MOTORS Submersible Pump Motors -Electrical Data 60Hz Circ arkr Full L��dMax Urie•to Line KVA 3 Ph overload VOLTAGE By means of a voltmeter,which has been When the motor is under load,the voltage or Fuses Am era a Ett Thrust ealatance Ohms CodeProtection settothe proper scale measurethevoltage should be within t 10%of the nameplateoit S F Std flelay Start Mu {%} libel Blk Yet Rod Yet Starter Fumae at the control box or starter On single voltage Larger voltage variation may phase units measure between line and cause winding damage large variations 4-Inch,Single Phase,2-Wire Motors(control box not required) Size Amb neutral in the voltage Indicate a poor electrical Com supply and the pump should not be 113 1 230 1 75 15 5 257 46 59 77 900 6 8-8 2 S operated until these variations have been 1/2 1 115 1 60 30 15 550 120 62 76 900 1 1 1 3 R corrected 112 1 230 1 60 15 7 345 60 62 76 900 5263 R If the voltage constantly remains high or 314 1 230 1 50 24 9 405 84 62 75 900 3238 N low the motor shoufd be changed to the 1 1 230 1 40 25 12 484 98 63 82 goo 2 5 3 1 M correct supply voltage 1 112 1 230 1 30 35 15 620 131 64 85 900 19-23 L. 4-Inch,Single Phase,3-Wire Motors CURRENT How to Measure What It Means a 113 1 115 1 75 25 10 290 9 0 59 77 900 155 19 243 M MEASUREMENT By use of an ammeter,set on the proper It the amp draw exceeds the Ilsted service 113 1 230 175 15 5 140 46 59 77 900 6883173211 L scale,measure the current on each power factor amps(SFA)check for the following 112 1 115 1 60 30 t5 425 120 61 76 900 09 1 1 1 9235 L lead at the control box See page 6 for 112 1 230 1 60 15 7 215 60 62 76 900 4 7 5 7 15 8 19 L motor amp draw Information 1 Loose terminals in control box or possible cable detect Check winding 314 1 230 1 50 20 9 314 84 62 76 900 3239 14 172 L Current should be measured when the and Insulation resistances 1 1 230 140 25 12 370 98 63 82 900 26.31 10312 K pump Is operating at a constant discharge 2 Too high or low supply voltage 1 112 1 230 1 30 35 15 459 116 69 89 goo 1 9 2 3 78-96 H pressure with the motor fully loaded 2 t 230 1 25 30 15 570 132 72 86 1500 15`18 34.41 G 1 3 Motor windings are shorted 3 1 230 1 15 45 20 770 170 74 93 1500 1 2 1 4 245-3 F 4 Pump is damaged causing a motor 5 1 J 230 1 15 70 30 1 114 275 77 1 92 1500 y65 0 85 2 1 2 6 F overload 4-Inch,Three Phase,3-Wire Motors 1 112 3 1 230 1 34 16 8 40 3 7 3 75 72 750 3 9 K 0 K41 How to Measure What It Means 460 1 30 10 4 201 37 75 72 750 159 K 0 K32 WINDING, 575 130 10 4 161 29 75 72 750 252 K 0 K28 RESISTANCE Turn off power and disconnect the drop If all the ohm values are normal and the cable leads In the control box Using an cable colors correct the windings are riot 2 3 230 1 25 26 10 48 17 76 75 1.750 3 0 J 0 K50 ohmmeter,set the scale selectors to Rxl damaged if any one ohm value Is less 460 1 25 10 5 24 44 76 75 750 121 J 0 K34 L� for values under 10 ohms and Rxio for than normal the motor may be shorted If 575 125 10 4 192 35 76 75 750 18 8 J 4 K31 values over 10 ohms any one ohm value Is greater than normal O Zero adjust the meter and measure ft there is a poor cable connection or Joint 3 3 230 1 15 30 15 56 12 2 77 75 1000 22 H 0 K54 resistance between {gads Record the The windings or cable may also be open 060 1 15 15 7 28 61 77 75 100a 90 H 0 K37 values Motor resistance values can be if some of the ohm values are greaser than 575 1 15 16 6 22 4 8 77 75 1000 130 H 4 K36 found on page 6 normal and some less the drop cable leads 5 3 234 115 40 26 108 19 8 80 82 1000 1 2 H 1 K61 are mixed To verify lead colors, see 460 1 15 20 12 54 99 80 82 1000 6 0 H 0 K50 resistance values on page 8 575 1 15 15 9 54 7 9 80 82 4000 7 3 H 0 K43 7 112 3 1 230 1 1 15 60 30 130 2.50 81 62 1000 0 84 H 1 K67 INSULATION How to Measure What It Means 460 1 15 35 15 87 13 2 81 82 loop 3 24 J 1 K56 RESISTANCE Tum off power and disconnect the drop Forohmvalues referto table below Motors 575 1 15 30 15 67 106 a1 az 1404 62 J 1 K53 cable leads In the control box Using an of all Hp voltage phase and cycle duties 10 1 3_1460 1 1 15 50 25 90 18 0 81 80 1500 1 16 H 1 K61 0 ohm or mega ohmmeter set the scale have the same value of insulation 575 1 15 40 20 72 144 81 80 1500 1 84 H 1 K58 o selector to Rx 100K and zero adjust the resistance 1 e meter Measure the resistance between All Grundtos 4 motars have a ground(green wire) the lead and ground(discharge pipe or The Franklin and Grundfas 1 PH, 3 wire motors listed below require the use of the well casing If steel) q following Franklin Control Box 1 RATING FRANKLIN MTR MDL# GRUNDFOS MTR MDL# FRANKLIN CONTROL BOX# THE MODEL MAY HAVE THE MODEL MAY HAVE THE MODEL MAY HAVE 00%o��W "��1kLOAaHM1� 1! rJ yR A f«v HP VOLT ADDITIONAL DIGITS ADDITIONAL,DIGITS ADDITIONAL DIGITS Motor not yet installed 113 116 214502 28414209 2,000,000(or more) 20 New Motor `1i0Q6i�b0tf1t"414)g 9 ?.Ki1 ZJt��l „�'Pr �"� 4 113 230 214503 79453101 28014349 L Motor In well(Ohm readings are for drop cable plus motor) 112 115 214504 26010449 500 000 1 000 400 05 10 A motor in reasonably good condition 112 234 214505 78453102 28010549 MOO 5 ,Odd"W P 5 .r ;� 314 230 214507 79453103 28014749 sr6� -"w -... eF �' � , }- S 1 230 214640 79453144 28010849 10 000 20 000 001 002 A motor which definitely has been damaged or with damaged cable The 1 5 230 224300 79453105 2823006 pump should be paned and repairs made to the cable 4r the motor replaced The motor will still operate but probably not for long 2 230 224301 2823018 "'1 I3 230 2243x2 2823028 515 230 224303 2821138 `ar n �� '1' 2821139 Page 9 (Refer to the Franklin Submersible Mofors Applleation Mafnten anuaf) Page 6