Instruction. Vacuum Circuit Breaker Operator Module. Type 3AH 4.16kV to 38kV. Power Transmission & Distribution
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1 Instruction Vacuum Circuit Breaker Operator Module Type 3AH 4.16kV to 38kV Power Transmission & Distribution
2 Hazardous voltages and high-speed moving parts. Will cause death, serious injury or property damage IMPORTANT.,,.,.,,. QUALIFIED PERSON,,., () is trained and authorized -,,. () is trained,,,,.,. () is trained. NOTE,,.,.,. &. &.. 1
3 Contents, 02 & Receiving, Handling & Storage ( ) Installation Checks & Initial Functional Tests 07 0, & 0 ( 1) Vacuum Interrupter/Operator Description ( ) / 0 ( 1, 2,, ) 10 ( ) 10 - ( ) 10 ( ) 10 ( ) ( ) (, -) 1 ( ) 1 ( ) ( ) 1 ( ) 1 ( ) 1 (2) 1 (2) 1 ( ( ) (21) (2)) 1 (21) ( 11) 1 (2) ( 10 11) 1 ( 11, 12, 1) (2/) 20 () 20 Maintenance 21 &
4 Contents & & 2 2 & 2 ( ) 2 & ( ) 2 () 2 2 ( ) ( 1) 2-2 ( ) & 2 & 2 & 2 & 2 2 Overhaul Maintenance & Troubleshooting 34 Appendix 37 Figures 1 & / / / / /
5 Contents Tables (.0) Appendix -1 ( ) -1 ( )
6 Introduction and Safety Introduction,..,.. Hazardous voltages and high-speed moving parts. Will cause death, serious injury or property damage.,,,.. Qualified Person,.,, -,,.,,,,,.,.. Signal Words Danger, Warning Caution. Danger -,, will. Warning -,, could. Caution -,, may. Caution (without safety alert symbol) -,,. Hazardous Procedures, 1. -.,,, ( ) Field Service Operation, -,,,.,, ( ).
7 Receiving, Handling & Storage Introduction,.,. Receiving Procedure...,. Shipping Damage Claims (when applicable), ,.,, Heavy weight. Can cause death, serious injury, or property damage. Use only a qualified rigger to hoist the circuit breaker. Storage Procedure, 10. Indoor Storage,.,,,. Outdoor Storage.,,,. Space Heating indoor and outdoor., 20. Handling Procedure ,. (Table A-4)
8 Installation Checks and Initial Functional Tests Introduction,. Inspections, Checks and Tests without Control Power., - -. Spring Discharge Check (Figure 1) before Hazardous voltages and high-speed moving parts. Will cause death, serious injury or property damage., Manual Spring Charging Check Automatic Spring Charging Check.. Note:.., (). 3. ( 1). / , Final Mechanical Inspections without Control Power 1.., As-Found and Vacuum Check Tests - -..
9 Vacuum Interrupter / Operator Description WARNING Figure 2. C B M Rating Plate Opening For Manual Spring Charging CLOSE Pushbutton Introduction -,.,.20.2,.0,.0, Opening For Closing Spring Charged / Discharged Indicator Opening For CLOSED/OPEN Indicator Opening For Operations Counter OPEN Pushbutton Cover Figure 1. F P C C B M C C,,, ( ).,.,,.
10 Vacuum Interrupter / Operator Description Vacuum Interrupters.....,.,.,.. Primary Connections (Figure 4).,., / (0 ). Phase Barriers (if applicable). Figure 3. I Stored Energy Operating Mechanism,..,., -,., / Vacuum Interrupter/Operator Module /,,. Figure 4. Figure 4. I / O M M
11 Vacuum Interrupter / Operator Description Construction (Figures 1, 2, 5, 6a and 6b) (, 000), - ( 000), ( ) ,,.,. Circuit Breaker Pole (Figure 5). -.. Current-Path Assembly (Figure 5) -,,,. Vacuum Interrupter (Figure 5).. Switching Operation (Figures 5 and 6a), (2),, (),, (), (),. (),., () (Figure 6a) () (.2) (Figure 6b). (2) (Figure 6a) -., ().,., () (.2) (Figure 6b)... Operating Mechanism ,, -,,,. 5. (/), (/),. Figure 5. P A () () 10
12 Vacuum Interrupter / Operator Description * 2..1* 2..* * -, (2.),. 11 Figure 6a. E O M (C B O P) (D F L )
13 Vacuum Interrupter / Operator Description *. 2..1* * ( ) * -, (2.),. Figure 6b. E O M (C B C P) (D F L ) Construction.. Motor Operating Mechanism (Figure 6a) (0.) (0.2).. Mode of Operation -,..,,. 12
14 Vacuum Interrupter / Operator Description -, Charging Figure 6a. (0.2),. (2.2), (2.), (2.),. (Figures 9a and 9b) (0.), (0.) (0..1) (2.),. (2.2) (2)., (.1) (.2) (), (0..1)., (2.) (2..2)., (2.),..,. Closing (Figures 6a, 6b and 7a - 7d), - ()., 2 (.1) (2)., (2.1) (2.2). (2.) (2.), () (.) (2.)., (.1), (.) (.) () (Figure 5). (.) - (). (.) (), (.) (..1) (.2). (.1) () (.1). (2.2) (2.1) (.1) (.2)., (0.). Trip Free Operation (Figures 6a and 6b) Trip Free for All Drawout Circuit Breakers and Some Fixed-Mounted Circuit Breakers (2.) - (2.) (). (2.) (2.) (). (2..1).. (2..2) (2..).,,,.. Trip Free for SDV6 Outdoor Distribution Circuit Breaker and Some Fixed-Mounted Circuit Breakers -, - -. (2.),.., (2..2). Opening (Figure 6a), () ()., 2 (.1) (). () () (.). 1
15 Vacuum Interrupter / Operator Description * * 64* * * * 64.2* 64.2* 64.3* 63.5* 63.5* 62.8* 64.5* 64.5* 63* 63* * 63.5* * 63.5* * 63.5* 63.1* Figure 7a. O M D (D F L ) M O, C D *I 7 O. 7 C D O. Figure 7b. O M D (D F L ) M O, C D *I 7 O. 7 C D O * 2..1* 2..2* 2..*, 2, 2 ( ) 2..* 2..* 2..* 2..* & * -, (2.),. 1
16 Vacuum Interrupter / Operator Description Figure 7c. O M D (D F L ) M C, C D *I 7 C B C O. Figure 7d. O M D (D F L ) M C, C C *I 7 C C O * 2..2* 2..* 2..* 2..* 2..* & * -, (2.),.
17 Vacuum Interrupter / Operator Description Closing - ( 2). * 2 () (2) () - (2) 1 21, 22.! 2 (2) 2 - (2) (), - (2).! - (2) - (2) (2). 2 (2) 2 2..,.., Tripping ().. (2). Figure 8. O O D (2) 2 * (2) 2 * (2), ( ) * ( ) (2) * * 2 * 1
18 Vacuum Interrupter / Operator Description Rapid Auto-Reclosing, Manual Operation The special hand crank automatically disengages if the spring charging motor operates. In order to avoid injuries as a result of the motor suddenly starting up, the circuit breaker spring must only be charged manually with the special hand crank (50). Figure 9a. M C C Manually Charging the Closing Spring (Figures 9a and 9b) (0) (0.) (0.1) (0.) ( ) () Manual Closing (Figure 6a) (). - () (). Manual Opening (Figure 6a) ()., () (). Figure 9b. M C C WARNING 1
19 Vacuum Interrupter / Operator Description Figure 10. E D (D )
20 Vacuum Interrupter / Operator Description Close coil (52SRC) (110).., -.,. Trip coil (52T) (110)..., -.,. Indirect Releases (Secondary Shunt Release (Dual Trip) (52T1) or Undervoltage (27)). ( )... ( ). Figures 11, 12 and 13. (.1)..,.. Construction and Mode of Operation of Secondary Shunt Release and Undervoltage Release (Figures 11, 12 and 13) - -,,. (), (). (). - (2) (1), (2)., (2), (2) (2). (2) (21), (). () -, (1) (11). () 1101, (1), ()., (2) (2), (1). 1 Secondary Shunt Release (52T1) (Figure 11) ( ) (1101). ( ). Undervoltage Release (27) (Figures 12 and 13) (110).,.. Figure 11. C R ( C)
21 Vacuum Interrupter / Operator Description 110, (2) (21) (). (), (), (2) (2)., (2) (1).. 110, (2), (2). (). (). Capacitor Trip Device.,,.., (Figure 14). Shock Absorber (1.) (Figure 6a)... Auxiliary Switch (52a/b) Figure 6a ()... (.1) (). ( ) ( ).,. Spring Charging Motor (88) (0.) (Figure 6a).,. 2 Figure 12. L D ( C) ( ) Figure 13. L / 2 2 Figure 14. C D / ( ) (2) 20
22 Maintenance 21 Introduction and Maintenance Intervals. Hazardous voltages and high-speed moving parts. Will cause death, serious injury or property damage. De-energize before working on this equipment.,., ( ) Table 2. - ( ).20.2,.1.0 /.010.,,,,,,,,..,.,., 0,,.,.. -.,,. 0,. A preventive maintenance program is not intended to cover reconditioning or major repair, but should be designed to reveal, if possible, the need for such actions in time to prevent malfunctions during operation. Recommended Hand Tools. -.,, 10, 1, 1 1 ( (2) ).,, 10, 1 1 ( ) 1 2,, (0-100-) /. 0.0 /1. 1/, /1, 1/. (, 0.0.) Recommended Maintenance and Lubrication Table 1.. Failure to properly maintain the equipment could result in death, serious injury or product failure, and can prevent successful functioning of connected apparatus.,,. Table 1. Table 1..,.
23 Maintenance Table 1. Maintenance Tasks ( ) The use of unauthorized parts in the repair of the equipment, or tampering by unqualified personnel will result in dangerous conditions which will cause death, serious injury or equipment damage. Follow all safety instructions contained herein. Checks of the Primary Power Path, ( ) ( )...,.,. ( /, / ). Cleanliness Check Figure 2 ( ),.. -., ( ).. -. Inspection of Flexible Connectors,,. Checks of the Stored Energy Operator Mechanism.,.. Maintenance and Lubrication Table 2. Maintenance and Lubrication Intervals Circuit Breaker Type Number of Years / Closing Operations (Whichever Occurs First) / 10, / 10,000 Table ( ) ( ).. Figure ,
24 Maintenance Figure 15. O L P
25 Maintenance -.. ( ) () 2 ( ), 2.,, / 2 ( ). Fastener Check... Manual Spring Charging and Contact Erosion Checks. 1.. ( 0 ).. 2. () Figure 16.,. a.. Figure 16. C E C M Vacuum Interrupter White Contact Erosion Mark b. (Figure 16)., High Speed Moving Parts. Can cause serious injury. Opening spring is charged. If trip latch is moved, the stored energy springs will discharge rapidly. Avoid physical contact with circuit breaker parts subjected to sudden, high speed movement. 2
26 Maintenance Electrical Control Checks,. Table 3. Typical Vacuum Interrupter Contact Life Expectancy Rated Rated Vacuum Interrupting Maximum Short-Circuit Interrupter Graph Curve Class Voltage kv Current Type, Check of the Wiring and Terminals 1.,, Hazardous voltages and high-speed moving parts. Will cause death, serious injury or property damage. De-energize before working on this equipment.,. Automatic Spring Charging Check (Control Power Required) ,.. Note:.,. 2
27 Maintenance 100,000 0,000 20,000 10,000,000 2,000 1, (. ) ,000 0,000 20,000 10,000,000 2,000 1, (2) (0) 10 () (0) 20 (1.) 12 () (. ) ,000 0,000 20,000 10,000,000 2,000 1, (. ) ,000 0,000 20,000 10,000,000 2,000 1, (21) 1 (1.) (20) (2) 1 (0) (. ) -000, -001 Figure 17. I C L C 2
28 Maintenance Electrical Close and Trip Check (Control Power Required).. 1., /.. 2.,. 3., /.. 4.,.,,,.,. Checks of the Spring Charging Motor (88). Vacuum Interrupters (Table 3 and Figure 17). (Table 2).. Figure 17. Vacuum Integrity Check (Using Mechanical Test) (Figure 18),,,. () (.) (Figure 18)., (.) Figure 18. (.) (Figure 18).,., (.) () (Figure 18). High-Potential Tests ( ).. Vacuum Integrity Check (Using Dielectric Test).. Hazardous voltages used in high potential tests. Will cause severe personal injury and death.,...,. Vacuum interrupters may emit X-ray radiation. Can cause serious injury. (). 2
29 Maintenance High Potential Test Voltages Table 4. Table 4. High Potential Test Voltages Note: Vacuum Integrity Test Procedure ,. 3. ( ) ( ). 4.,. Note:,., ().,.,,. (.) Step 1 1 (.) & (.) & () () Step 2 ( ) Step 3 ( ) () ( ) () ( ) ( 2) Figure 18. C B P A / C M / C R 2
30 Maintenance As-Found Insulation and Contact Resistance Tests -.. -,. Insulation and Contact Resistance Test Equipment Table 4, 100, 0. Insulation and Contact Resistance Test Procedure ,.,. 3. (Table 4). 4.,. 5., ( ). ( ),.,., 100, ,. 9., - ( ) (Figure 18). Table 5. Table 5. Maximum Contact Resistance () (-) Inspection and Cleaning of Circuit Breaker Insulation 1.. 1), 2), ). (Figure 1).. 2. ( ) Note: Do not use any cleaning compounds containing chlorinated hydrocarbons, such as: trichlorethylene, perchlorethylene or carbon tetrachloride.. Functional Tests. () ().,,. 0 2
31 Overhaul Introduction,. Circuit Breaker Overhaul Table ( ) ( )., Table 6 Table 2. Table 6. Overhaul Schedule Circuit Breaker Type Closing Operations e. ( # ) ,,, -. Replacement of Vacuum Interrupters.... Figures 19 and ,000 10,000 Note: Special care needs to be exercised in removal or installation of hardware around the bottom, or movable contact end, of the vacuum interrupter. Replacement at Overhaul,,, - Table 6., 2, 2 ( ),.,,,,, (2) (2). a. b.. c. 10 ( # ) ( # ). d. ( #222, ) ( (#1), )..,.,.,. 1.1,,, () (2.2). Figure (.) () (.). 1.4 (.). 0
32 Overhaul Figure 19. I R I 1
33 Overhaul 1.5 (2) (20). (0). 1.6 (2.1). 1.7 (1.2),. 1.8, (0).. DO NOT USE UNDUE FORCE OR TWISTING MOTION. (2.2),!,, (2.2). 2. NOTE: (0) (.),. DO NOT ALTER THE ADAPTER SETTING ,. 2.2 (0) (0). (2.2). 2.3,, (1.2) Figure 20. I C H 2
34 Overhaul 2.4 (1.1),. 2.5 (2) (20), (10),. 2.6 (.) (.) (.),..,. 2.7 (2.2) ( ) (.1) (0) (2.1) () 0 (0 -),. NOTICE Excessive bending movement exerted while fastening the terminal clamp will damage the vacuum interrupter. 2.8 (20). (2). 2.9 (1.2) (20) (.),,., (1.2) (2.1)., () (.), (.) () (.) (2.2) (0)., () (.) Table ,. 3.8 (),. -., (- ). 4.,, Hydraulic Shock Absorber. 1. (Figure 6a)..,,.,.
35 Maintenance and Troubleshooting Table 7. Vacuum Interrupter Stroke Rated Maximum Voltage kv Interrupting Class Rated Short-Circuit Current Vacuum Interrupter Type Continuous Current 000 Stroke Notes: 1..,. 2.,.
36 Maintenance and Troubleshooting Table 8. Troubleshooting Problem Symptoms Possible Causes and Remedies ,,.. 4. () ( ).,. (2) (2) (2) , ( ).
37 Maintenance and Troubleshooting Table 8. Troubleshooting (Continued) Problem Symptoms Possible Causes and Remedies (2) ( ). (2) ,, (2) (2)., (.., ). (2)., ( ) ( ).
38 Appendix Table A-1a. Type 3AH Circuit Breaker Ratings (Historic Constant MVA Rating Basis) Circuit Breaker Type General Rated Values Measured Parameter Units 5-3AH AH AH AH AH AH AH Nominal Voltage Class kv Nominal 3-Phase MVA Class 8 MVA Rated Maximum Design Voltage (V) 2 kv rms Voltage Voltage Range Factor (K) Insulation Levels Rated Current Withstand Voltage Levels Power Frequency kv rms Lightning Impulse (BIL) kv crest Continuous 2 A rms Short Circuit (At Rated Maximum Design Voltage)(I) 4, 5, 9 ka rms sym Interrupting Time Cycles Permissible Tripping Delay (Y) Sec Rated Maximum Design kv rms. Voltage (V) divided by K (=V/K) Current Max. Sym. Interrupting (K x I) 6 ka rms sym 1 2 Short-Time Current (K x I) Rated ka rms 1 2 (3 seconds) Required Capabilities Closing Asymmetrical (1.6 x K x I) 7 ka rms and Latching ka (Momentary) Peak (2.7 x K x I) peak (). 2,.. 1/, - () ( )/( ) - 1/, , , /. 1/,
39 Appendix Table A-1b. Type 3AH Circuit Breaker Ratings (New Constant ka Rating Basis) Circuit Breaker Type Rated Values Units 5-3AH AH AH AH AH AH AH AH AH- 50 Maximum Design Voltage (V) 1 kv rms Voltage Range Factor (K) Withstand Voltage Levels Power Frequency Lightning Impulse (BIL) Continuous 3 Short-Circuit (I) 4, 5 Interrupting Time 7 Permissible Tripping Delay (Y) Max. Sym. Interrupting (I) kv rms kv crest A rms ka rms sym ms cycles Sec 2 ka rms sym % dc Component % Short-Time Current (I) (3 seconds) Closing and Latching (Momentary) Asymmetrical (1.55 x I) Closing and Latching (Momentary) Peak (2.6 x I) ka rms ka rms ka peak ,. 2., , 200.
40 Appendix Table A-1b. Type 3AH Circuit Breaker Ratings (New Constant ka Rating Basis) (Continued) Circuit Breaker Type Rated Values Units AH AH AH AH AH- 27-3AH AH AH AH AH- 40 Maximum Design Voltage (V) 1 kv rms Voltage Range Factor (K) Withstand Voltage Levels Power Frequency Lightning Impulse (BIL) Continuous 3 Short-Circuit (I) 4, 5 Interrupting Time 7 Permissible Tripping Delay (Y) Max. Sym. Interrupting (I) kv rms kv crest A rms ka rms sym ms cycles / 10 / 10 / 10 / Sec 2 ka rms sym % dc Component % Short-Time Current (I) (3 seconds) Closing and Latching (Momentary) Asymmetrical (1.55 x I) Closing and Latching (Momentary) Peak (2.6 x I) ka rms ka rms ka peak ,. 2., , 200.
41 Appendix Table A-2. Type 3AH Circuit Breaker Control Data Control Voltages, ANSI C37.06 Spring Charging Motor Close Coil Trip Coil Range Amperes Charging Nominal Close Trip Amperes 1 Amperes 1 Run (Avg.) 1 Seconds / / / / /.. Table A-3. Interrupting Capacity of Circuit Breaker Auxiliary Switch Contacts Type of Circuit Non- Inductive Continuous Current Amperes Control Circuit Voltage 120 VAC 240 VAC 24 VDC 48 VDC 125 VDC 250 VDC Interrupting Capacity in Amperes / / 20 1 Inductive / / Table A-4. Circuit Breaker Weights (Circuit Breaker Operator Only) Maximum Voltage kv rms sym. Circuit Breaker Type Weights, Approximate lbs (kg) 1 Interrupting Capability ka rms sym. (MVA) Continuous Current Amperes A A 3000 A. 1. (20) 22 (110) 2 (120) (112) 2 (122) 2 (10). 0 (0) 0 (10) (1) (10).2 0 (00) 2 (112) 2 (122) 2 (10) (00) 1 () 2 (11) () 2 (11) (0) 22 (110) 2 (120) (112) 2 (122) 2 (10) (1000) 0 (10) (1) (10) (11) 2 (12) (12) 2 (11) (1) 1 (12) 1 (10) (10) 2 (1) (1) (12) 21 (12) (10) 02 (1) (10) (10) (1).0 2 (10) (10) (1).0 1. (1) (1) (10) (10) 0 (1) 1, 100 ( ). 0
42 ,..,. &,. 000, , &,
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