Eaton DST-2-15-VR+, Инструкция

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iii Instruction Book IB182942EN May 2019 www.eaton.com
DST-2-VR
+
VR-Series
+
Replacement Circuit Breaker
Table of Contents
SECTION 1: INTRODUCTION 4
1.1 VISUAL INSTRUCTION BOOKLET ESSENTIALS 4
1.2 QUICK RESPONSE CODE 4
1.3 AVAILABLE DST-2
-VR
+
CIRCUIT BREAKERS 4
SECTION 2: SAFE PRACTICES 7
SECTION 3: RECEIVING, HANDLING, AND STORAGE 8
3.1 RECEIVING 8
3.2 HANDLING 9
3.3 STORAGE 9
3.4 APPROXIMATE WEIGHT BY TYPE 9
SECTION 4: DESCRIPTION AND OPERATION 12
4.1 VACUUM INTERRUPTER 12
4.1.1 VACUUM INTERRUPTER ASSEMBLY 12
4.1.2 CONTACT EROSION INDICATOR 12
4.1.3 CONTACT WIPE AND STROKE 13
4.2 LINE AND LOAD CONDUCTOR ASSEMBLIES 13
4.3 STORED ENERGY MECHANISM 13
4.3.1 CLOSING SPRING CHARGING 13
4.3.2 CLOSING OPERATION 13
4.3.3 TRIPPING OPERATION 14
4.3.4 TRIP-FREE OPERATION 14
4.4 CONTROL SCHEMES 14
4.4.1 TIMING 14
4.5 SECONDARY CONNECTION BLOCK 14
4.6 INTERLOCKS 14
4.6.1 ANTI-CLOSE INTERLOCK 14
4.6.2 SHUTTER OPERATING MECHANISM 14
4.6.3 RACKING SYSTEM TRIP AND
SPRING RELEASE INTERLOCKS 16
4.7 RACKING MECHANISM 16
4.7.1 LEVERING SYSTEM TRIP AND
SPRING RELEASE INTERLOCKS 16
4.8 GROUNDING CONTACT 16
4.9 MISCELLANEOUS ITEMS 16
4.9.1 OPERATIONS COUNTER 16
SECTION 5: INSPECTION & INSTALLATION 20
5.1 EXAMINATION FOR DAMAGE 20
5.1.1 NAMEPLATE VERIFICATION 20
5.2 SURE CLOSE MECHANISM ADJUSTMENT 20
5.3 MANUAL OPERATION CHECK 21
5.4 VACUUM INTERRUPTER INTEGRITY 21
5.5 LOW FREQUENCY WITHSTAND
TEST (INSULATION CHECK) 21
5.6 CONTACT EROSION AND WIPE 21
5.7 PRIMARY CIRCUIT RESISTANCE 21
5.8 ELECTRICAL OPERATIONS CHECK 21
5.9 MECHANICAL INTERLOCK (FLOOR
TRIP) OPERATIONAL CHECKS 21
5.10 OPERATION, INSERTION AND
REMOVAL (LEVERING-IN VERSION) 22
5.10.1 OPERATIONAL POSITIONS (LEVERING-IN VERSION) 22
5.10.2 INSERTION PROCEDURE (LEVERING-IN VERSION) 22
5.10.3 REMOVAL PROCEDURE (LEVERING-IN VERSION) 23
5.11 OPERATION, INSERTION, AND REMOVAL FOR 5kV AND
15kV MODELS WITH ROTARY RACKING PROVISIONS 24
5.11.1 Operational Positions (Domestic and
some Canadian Rotary Racking Versions) 24
5.11.2 5kV Insertion Procedure (DST-2-5-VR
+
250, Domestic
and Canadian Rotary Racking Version) 24
5.11.3 5kV Removal Procedure (DST-2-5-VR
+
250, Domestic
and Canadian Rotary Racking Version) 25
5.11.4 15kV Insertion Procedure (DST-2-15-VR
+
500/750
Domestic and Canadian Rotary Racking Version) 25
5.11.5 15kV Removal Procedure (DST-2-15-VR
+
500/750
Domestic and Canadian Rotary Racking Version) 26
SECTION 6: INSPECTION & MAINTENANCE 27
6.1 INSPECTION FREQUENCY 27
6.2 INSPECTION AND MAINTENANCE PROCEDURES 27
6.3 VACUUM INTERRUPTER INTEGRITY TEST 28
6.4 CONTACT EROSION AND WIPE 28
6.5 INSULATION 29
6.6 INSULATION INTEGRITY CHECK 29
6.7 PRIMARY CIRCUIT RESISTANCE CHECK 29
6.8 VR-SERIES
+
CIRCUIT BREAKER
ELEMENT MECHANISM CHECK 29
6.8.1 CLOSURE™ TEST 29
6.9 MAINTENANCE RECOMMENDATION 33
SECTION 7: REPLACEMENT PARTS 35
7.1 GENERAL 35
7.2 ORDERING INSTRUCTIONS 35