Combination of water and caustic soda for improving the resistance in starter, that's called Liquid Resistancestarter.If any slip ring Induction motor, at the time of startinggiven the external resistance required to rotor side, why because starting current and starting torque is very high.So we are using resistance starter depend on motor capacity , at that place using Liquid resistance starter.Liquid resistance starter (LRS) ,IN which externalresistance is liquid media which is use for the startingmethod of slip ring motor. For starting of slip ring motor external resistance arerequired so that we use liquid (addition of some causticsoda)as resistance so that is called as LRS.
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Types of starters: 1. Direct on line starter 2. Autotransformer starter 3. Star Delta starter 4. Resistance starter 5. Fully automatic star delta starter 6. Series reactor starter
starter, starter relay, battery, high resistance in batter/starter cabels just a few things that will cause this.
tried to remove starter but shaft and gear seem to be stuck in primary case ..... do I need to open up the primary side to remove, starter just spins but does not engage flywheel.
take off primary cover and remove starter thru bolt
You can use a wire instead of the starter to test the tubes .. I did it, it works !
Test it Primary resistance 1.40 to 1.54 ohms secondary resistance 7600-8800 ohms primary circuit resistor 1.30 to 1.40 ohms
That is not anywhere near enough information to make a determination about the status of the starter. Could be the starter, but could be the starter solenoid, wiring problems or even the ignition switch.
how does water resistances work
A DOL or direct on line starter works by connecting the motor terminals directly to the power supply when they are energized. A DOL starter is the simplest type of motor starter.
The primary resistance is= 0.5 to 0.7 ohms. The secondary resistance is = 20 to 30 K ohms. Tom L.