PGR-4700-120;PGR-4700-240;PGR-4700-24;中文规格书,Datasheet资料.pdf

POWR-GARD? Ground-Fault Protection PGR-4700 SERIES Sensitive Ground-Fault Relay PGR-4700 MANUAL SENSITIVE GROUND-FAULT RELAY APRIL 20, 2012 REVISION 2 Copyright ? 2012 by Littelfuse, Inc. All rights reserved. Publication: PGR-4700-M Document: P95-C700-00000 Printed in Canada. / This page intentionally left blank. / Page i PGR-4700 Sensitive Ground-Fault Relay Rev. 2 Pub. PGR-4700-M. April 20, 2012 ? 2012 Littelfuse ? POWR-GARD? TABLE OF CONTENTS Page Table of Contents i List of Figures i List of Tables i 1. GENERAL 1 2. OPERATION 1 2.1 Relay Operating Mode 1 2.2 Front-Panel Controls 1 2.2.1 Ground-Fault Trip Level 1 2.2.2 Ground-Fault Trip Time 1 2.2.3 Reset 1 2.2.4 Test 1 2.3 Front-Panel Indication 1 2.3.1 Power 1 2.3.2 ?I 1 2.3.3 CT 1 2.4 Analog Output 1 2.5 Remote Test 1 2.6 Remote Reset 3 2.7 CT Verification 3 3. INSTALLATION 3 4. TECHNICAL SPECIFICATIONS 7 5. ORDERING INFORMATION 8 6. PERFORMANCE TEST 9 LIST OF FIGURES Page 1. PGR-4700 Outline and Mounting Details 2 2. Typical Connection Diagram 3 3. PGC-5000-Series Current Transformers 4 4. PGK-0055 Panel-Mount Adapter 5 5 PGK-0060 Panel-Mount Adapter 6 6. PGA-0500 Analog Percent Current Meter 7 7. Ground-Fault-Test Circuit 9 LIST OF TABLES Page 1. Ground-Fault-Test Record 9 DISCLAIMER Specifications are subject to change without notice. Littelfuse, Inc. is not liable for contingent or consequential damages, or for expenses sustained as a result of incorrect application, incorrect adjustment, or a malfunction. / Page ii PGR-4700 Sensitive Ground-Fault Relay Rev. 2 Pub. PGR-4700-M. April 20, 2012 ? 2012 Littelfuse ? POWR-GARD? This page intentionally left blank. / Page 1 PGR-4700 Sensitive Ground-Fault Relay Rev. 2 Pub. PGR-4700-M. April 20, 2012 ? 2012 Littelfuse ? POWR-GA