Transcription of LT3 Protection Relays - Steven Engineering
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LT3 Protection Relays - Steven Engineering
LT3 Protection Relays ContentsApplication Information .. 3 Product Selection .. 4-5 Product Characteristics .. 6-8 Operation .. 9 Dimensions and Wiring Diagrams .. 10 File 91102 1997 Square D All Rights Reserved10/973 1997 Square D All Rights Reserved10/97 Application Information - Thermistor Protection Relays Provide additionalmotor Protection and should be used to supplement a conventional currentsensing overload thermistor Protection units continuously monitor the temperature of the machines to be protected (motors,generators, etc.) by means of PTC thermistor probes embedded in the machine the nominal operating temperature of the probes is reached, they convert the rapid increase in resistance into aswitching function which can be used to switch off the machine or signal a fault (see Thermistor probes below).
LT3 Protection Relays Contents Application Information..... 3
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