Franklin 2007 manual 60 Hz 4 Motors, Heaters for, Overload Relays, Furnas, Set Max

Page 31

Application – Three-Phase Motors

Overload Protection of Three-Phase Submersible Motors Class 10 Protection Required

The characteristics of submersible motors are different than standard motors and special overload protection is required.

If the motor is locked, the overload protection must trip within 10 seconds to protect the motor windings. Subtrol/ SubMonitor, a Franklin-approved adjustable overload relay, or a Franklin-approved ﬁ xed heater must be used.

Fixed heater overloads must be the ambient-compensated quick-trip type to maintain protection at high and low

air temperatures.

All heaters and amp settings shown are based on total line amps. When determining amperage settings or making heater selections for a six-lead motor with a Wye-Delta starter, divide motor amps by 1.732.

pages 28, 29 and 30 list the correct selection and settings for some manufacturers. Approval for other manufacturers’ types not listed may be requested by calling Franklin’s Submersible Service Hotline at 800-348-2420.

Refer to notes on page 29.

Table 28 - 60 Hz 4" Motors

HP	KW
1/2	0.37
3/4	0.55
1	0.75

1.51.1

21.5

32.2

53.7

7.55.5

10 7.5

		NEMA	HEATERS FOR		ADJUSTABLE
		NEMA	OVERLOAD RELAYS		RELAYS
	VOLTS	STARTER	OVERLOAD RELAYS		RELAYS
	VOLTS	STARTER	FURNAS	G.E.	(NOTE 3)
		SIZE			(NOTE 3)

			(NOTE 1)	(NOTE 2)	SET	MAX.
			(NOTE 1)	(NOTE 2)	SET	MAX.
	200	00	K31	L380A	3.2	3.4
	230	00	K28	L343A	2.7	2.9
	380	00	K22	L211A	1.7	1.8
	460	00	-	L174A	1.4	1.5
	575	00	-	-	1.2	1.3
	200	00	K34	L51CA	4.1	4.4
	230	00	K32	L420A	3.5	3.8
	380	00	K27	L282A	2.3	2.5
	460	00	K23	L211A	1.8	1.9
	575	00	K21	L193A	1.5	1.6
	200	00	K37	L618A	5.0	5.4
	230	00	K36	L561A	4.4	4.7
	380	00	K28	L310A	2.6	2.8
	460	00	K26	L282A	2.2	2.4
	575	00	K23	L211A	1.8	1.9
	200	00	K42	L750A	6.3	6.8
	230	00	K39	L680A	5.5	5.9
	380	00	K32	L420A	3.3	3.6
	460	00	K29	L343A	2.8	3.0
	575	00	K26	L282A	2.2	2.4
	200	0	K50	L111B	8.6	9.3
	230	0	K49	L910A	7.5	8.1
	380	0	K36	L561A	4.6	4.9
	460	00	K33	L463A	3.8	4.1
	575	00	K29	L380A	3.0	3.2
	200	0	K55	L147B	11.6	12.5
	230	0	K52	L122B	10.1	10.9
	380	0	K41	L750A	6.1	6.6
	460	0	K37	L618A	5.1	5.5
	575	0	K34	L510A	4.1	4.4
	200	1	K62	L241B	19.1	20.5
	230	1	K61	L199B	16.6	17.8
	380	0	K52	L122B	10.0	10.8
	460	0	K49	L100B	8.3	8.9
	575	0	K42	L825A	6.6	7.1
	200	1	K68	L332B	28.4	30.5
	230	1	K67	L293B	24.6	26.4
	380	1	K58	L181B	14.9	16.0
	460	1	K55	L147B	12.3	13.2
	575	1	K52	L122B	9.9	10.6
	380	1	K62	L241B	19.5	21.0
	460	1	K60	L199B	16.1	17.3
	575	1	K56	L165B	12.9	13.6

28

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Contents Submersible Motors Important Information for Installers of this Equipment Commitment to Quality Page Submersible Motors Application Installation Maintenance ManualMounting Position Application All MotorsStorage Frequency of StartsTorque Required Examples Transformer Capacity Single-Phase or Three-PhaseEffects of Torque Transformer CapacityKVA Use of Engine Driven Generators Single-Phase or Three-PhaseUse of Check Valves Engine Driven GeneratorsMotor Water Temperature and FlowFlow Inducer Sleeve Required Cooling FlowMinimum gpm l/m Required for 3 ft/s .91 m/sec Flow Rate Head Loss From Flow Past MotorHot Water Applications Standard Motors Head Loss in Feet Meters at Various Flow RatesHeat Factor Multiplier at 3 ft/s .91 m/sec Flow Rate Service Factor HorsepowerMaximum Water Temperature Hot Water Applications ExampleControl Box and Panel Environment Drawdown SealsGrounding Control Boxes and Panels Grounding Surge ArrestorsQD Relays Solid State Application Single-Phase MotorsWire Control Boxes Wire Motor Solid State Controls250 120180 200Actual Length Formula Two or More Different Cable Sizes Can Be UsedSingle-Phase Motor Speciﬁcations 60 Hz 3450 rpm Single-Phase Motor Fuse Sizing Buck-Boost Transformers Auxiliary Running CapacitorsBuck-Boost Transformer Sizing Application Three-Phase Motors Three-Phase 60 C Cable 450 140 220150 240 250 400280 150200 250 260Three-Phase 75 C Cable 340 400 490 120 180130 340 420Efficiency % Locked Rotor Amps Three-Phase Motor Speciﬁcations 60 HzFull Load Maximum Amps Watts575 Three-Phase Motor Fuse SizingEfficiency % KW Volts Amps Watts100 150 200 175 250 225 125 110 300 17.5 Efficiency Locked Rotor Amps Rating Full Load MaximumDual Element Furnas 60 Hz 4 MotorsHeaters for Overload Relays60 Hz 6 Motors Nema Heaters for AdjustableFootnotes for Tables 28, 29, Submersible Pump Installation Check List Date Filled In By Pump MotorIncoming Voltage Power SupplyTransformers Control PanelControls and Protective Devices InstallationVoltage To Motor Insulation CheckAmps To Motor 60 Hz 8 Motors Recommended Adjustable Overload RelaysMotor Kvar Required for PF SubMonitor Three-Phase ProtectionPower Factor Correction KVAR Required 60 HzLine Voltage Control Three-Phase Starter DiagramsChecking and Correcting Rotation and Current Unbalance Three-Phase Power UnbalancePhase Converters Three-Phase Motor Lead IdentiﬁcationInline Booster Pump Systems Reduced Voltage StartersFeed Water Temperature C AIR Franklin Cable chart See 12. WiringSource of Cable Ampacity Availability Variable Speed Submersible Pump Operation, Inverter Drives Dimensions Standard Water Well Installation All MotorsSubmersible Leads and Cables Tightening Motor Lead Connector Jam NutPump to Motor Coupling Shaft Height and Free End PlayMotor Starts Too Often Maintenance All MotorsSystem Troubleshooting Motor Does Not StartMotor Runs But Overload Protector Trips Motor Runs ContinuouslyResistance Preliminary Tests All Sizes Single- and Three-PhaseResistance of Drop Cable ohms Insulation Resistance ReadingsNormal ohm and Megohm Values Between All Leads and Ground Checking and Repairing Procedures Power On Single-Phase Control BoxesOhmmeter Tests QD, Solid State Control Box Power OffOverload Kits 60 Hz QD Relay Replacement Kits QD Capacitor Replacement KitsQD Control Box Parts 60 Hz Control BOX Model no Capacitors MFD Volts Integral Horsepower Control Box Parts 60 HzOverload Relay Integral hp Contactor Replacement Kits Integral hp Capacitor Replacement KitsIntegral hp Overload Replacement Kits Integral hp Voltage Relay Replacement Kits1 hp QD Relay Control Box Wiring DiagramsHp Standard Hp Deluxe 282 201 Hp X-LARGE Unit Appears Dead Maintenance Electronic ProductsPumptec-Plus Troubleshooting During Installation Pumptec-PlusPumptec-Plus Troubleshooting After Installation QD Pumptec and Pumptec QD Pumptec & Pumptec TroubleshootingSubDrive75, 150, 300, MonoDrive, & MonoDrive XT SubDrive/MonoDrive TroubleshootingSubMonitor SubMonitor TroubleshootingSubtrol-Plus Obsolete See SubMonitor Subtrol-Plus Troubleshooting After InstallationGreen Off Time Light on Igbt AbbreviationsPage Page Page Toll Free Help from a Friend