METHODS AND APPARATUS FOR OPERATING AN ELECTRONIC TRIP DEVICE
An electronic trip device is described that includes a test signal generator coupled to at least one of a line conductor and a neutral conductor and configured to create a test signal. The electronic trip device also includes a leakage current detection circuit configured to compare a current in the...
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creator | WILLIAMS CRAIG B |
description | An electronic trip device is described that includes a test signal generator coupled to at least one of a line conductor and a neutral conductor and configured to create a test signal. The electronic trip device also includes a leakage current detection circuit configured to compare a current in the line conductor and a current in the neutral conductor, the leakage current detection circuit configured to output an error signal if the test signal is not detected. |
format | Patent |
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The electronic trip device also includes a leakage current detection circuit configured to compare a current in the line conductor and a current in the neutral conductor, the leakage current detection circuit configured to output an error signal if the test signal is not detected.</description><subject>ALARM SYSTEMS</subject><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>ORDER TELEGRAPHS</subject><subject>PHYSICS</subject><subject>SIGNALLING</subject><subject>SIGNALLING OR CALLING SYSTEMS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD1dQ3x8HcJVnD0c1FwDAhwDHIMCQ1WcPMPUvAPcAVyPP3cgXIKrj6uziFB_n6ezgohQZ4BCi6uYZ7OrjwMrGmJOcWpvFCam0HZzTXE2UM3tSA_PrW4IDE5NS-1JD402MjA0MjQ0NLS0MLR0Jg4VQDIkCqq</recordid><startdate>20120517</startdate><enddate>20120517</enddate><creator>WILLIAMS CRAIG B</creator><scope>EVB</scope></search><sort><creationdate>20120517</creationdate><title>METHODS AND APPARATUS FOR OPERATING AN ELECTRONIC TRIP DEVICE</title><author>WILLIAMS CRAIG B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2012119918A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2012</creationdate><topic>ALARM SYSTEMS</topic><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>ORDER TELEGRAPHS</topic><topic>PHYSICS</topic><topic>SIGNALLING</topic><topic>SIGNALLING OR CALLING SYSTEMS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>WILLIAMS CRAIG B</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WILLIAMS CRAIG B</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHODS AND APPARATUS FOR OPERATING AN ELECTRONIC TRIP DEVICE</title><date>2012-05-17</date><risdate>2012</risdate><abstract>An electronic trip device is described that includes a test signal generator coupled to at least one of a line conductor and a neutral conductor and configured to create a test signal. The electronic trip device also includes a leakage current detection circuit configured to compare a current in the line conductor and a current in the neutral conductor, the leakage current detection circuit configured to output an error signal if the test signal is not detected.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | ALARM SYSTEMS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING |
title | METHODS AND APPARATUS FOR OPERATING AN ELECTRONIC TRIP DEVICE |
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