Eaton B20B-VR 15 500 User Manual Download

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IB01301018E

I.B. 94A1994R01

Instructions for VR-Series Replacement Breakers for Westinghouse Type B20B / B22B

(B22B-VR-500-1200A)

Summary of Contents for B20B-VR 15 500

Page 1: ...For more information visit www EatonElectrical com IB01301018E I B 94A1994R01 Instructions for VR Series Replacement Breakers for Westinghouse Type B20B B22B B22B VR 500 1200A...

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Page 3: ...THE EQUIPMENT TO FAIL RESULTING IN DEATH BODILY INJURY AND PROPERTY DAMAGE ALL SAFETY CODES SAFETY STANDARDS AND OR REGULA TIONS AS THEY MAY BE APPLIED TO THIS TYPE OF EQUIP MENT MUST BE STRICTLY ADH...

Page 4: ...N 16 5 1 VACUUM INTERRUPTER 16 5 1 1 THE INTERRUPTER ASSEMBLY 16 5 1 2 CONTACT EROSION INDICATOR 16 5 1 3 CONTACT WIPE AND STROKE 17 5 2 PHASE BARRIERS 17 5 3 BUSHINGS AND DISCONNECTING CONTACT ASSEMB...

Page 5: ...Tables Table 1 1 B20B B22B VR Vacuum Circuit Breaker Availability and Interchangeability 5 Table 1 2 B20B B22B VR Dimensions in Inches 6 Table 3 1 Weight by Breaker Type 9 Table 5 1 Time Per Event 18...

Page 6: ...m and Trip Linkage 21 Figure 5 6 Charging Schematic 22 Figure 5 7 Typical AC DC Schematic 23 Figure 5 8 TOC Operator 24 Figure 5 9 Static Grounding Contact 24 Figure 6 1 Lubrication Areas 25 Figure 6...

Page 7: ...RDER TO OBTAIN OPTIMUM PERFORMANCE FOR LONG USEFUL LIFE OF THE CIRCUIT BREAKERS VR SERIES BREAKERSARE PROTECTIVE DEVICES AS SUCH THEY ARE MAXIMUM RATED DEVICES THEREFORE THEY SHOULD NOT UNDER ANY CIRC...

Page 8: ...01301018E I B 94A1994R01 Page 6 Effective April 2005 Table 1 2 B20B B22B VR Dimensions in Inches B22B VR Shown Figure 1 1 Outline and Dimensions in inches of Type B20B B22B VR Breakers B22B VR Shown A...

Page 9: ...re personnel injury or property damage y y y y y Do not work on a breaker with the secondary test coupler engaged Failure to disconnect the test coupler could result in an electrical shock leading to...

Page 10: ...al Westinghouse breaker racking mechanism and is therefore not provided as part of the vacuum replacement breaker Secondary Connection Block Extension Cable The extension cable can be used to connect...

Page 11: ...manual charge socket opening Figure 3 2 Charge the closing springs by pumping the handle up and down about 36 times until a crisp metallic click is heard This indicates that the closing springs are ch...

Page 12: ...ective April 2005 Figure 3 3 Front External View of Breaker B22B VR Shown 1 3 4 4 5 5 6 7 8 9 10 11 2 Primary Disconnects Secondary Disconnect MOC Operator Safety Locking Rod Retainer Safety Locking R...

Page 13: ...eakers for Westinghouse Type B20B B22B I B 94A1994R01 Page 11 Effective April 2005 IB01301018E Figure 3 4 Back External View of Breaker B22B VR Shown 1 3 4 5 2 3 6 Ground Contact Assembly Interlock Sy...

Page 14: ...ion 5 7 Breaker operations may not be performed due to the interlock holding the trip linkage engaged and a charging motor series contact open Manual charging of the breaker is possible but an attempt...

Page 15: ...on indicator marks as described in Section 6 5 and illustrated in Figure 6 2 and 6 3 to verify that contact erosion is not greater than the service limit of 1 8 Check contact wipe per Section 6 5 and...

Page 16: ...circuit breaker between the disconnect trip free and connect positions The cell lifting mechanism is a worm driven rack and dual pinion type arrange ment To prevent inadvertent lowering of the mechani...

Page 17: ...n and close linkages are released the racking handle has been removed from the cell and the safety rod holes are aligned Care and experience is needed in order to determine whether a more than usual f...

Page 18: ...vapor causes the vacuum to be quickly restored and prevents the transient recovery voltage from causing a restrike across the gap of the open contacts 5 1 1 THE INTERRUPTER ASSEMBLY Each interrupter...

Page 19: ...5 3 ALL FOUR PHASE BARRIERS MUST BE IN PLACE BEFORE PLACING THE CIRCUIT BREAKER INTO SERVICE FAILURE TO HAVE THEM IN POSITION CAN CAUSE DEATH SERIOUS PERSONNEL INJURY AND OR PROPERTY DAMAGE 5 3 BUSHI...

Page 20: ...nto the face of the spring release coil electrically or manually the upper portion of the clapper pushes the spring release latch 4 upward When the spring release latch moves the cam shaft assembly is...

Page 21: ...anti close interlock INTERLOCKS ARE PROTECTIVE DEVICES FOR PERSONNEL AND EQUIPMENT DO NOT BYPASS MODIFY OR MAKE INOPERA TIVE ANY INTERLOCKS DOING SO COULD CAUSE DEATH SERIOUS PERSONAL INJURY AND OR PR...

Page 22: ...ve April 2005 Figure 5 4 B22B VR Vacuum Element Front Faceplate Removed 1 9 8 13 4 5 2 3 11 10 6 12 Motor Cutoff Switch Closing Cam Ratchet Wheel Manual Charge Socket Position Switch Latch Check Switc...

Page 23: ...nd Trip Linkage Breaker Open Springs Discharged Breaker Open Springs Charged 2 9 13 7 1 3 Pole Shaft Anti Close Interlock Sping Release Close Latch Spring Crank Closing Spring Closing Spring Fixed End...

Page 24: ...er Open and Closing Spring Not Charged Figure 5 5b Breaker Breaker Open and Closing Spring Charged Figure 5 5c Breaker Closed and Closing Spring Not Charged Figure 5 5d Breaker Closed and Closing Spri...

Page 25: ...10UV 10A 10UV 9UV 2ND AUXILIARY SWITCH OPTIONAL VCP WR SERIES 18 OR 29 3RD AUXILIARY SWITCH OPTIONAL VCP WR SERIES 29 SPRING CHARGED INDICATING LIGHT 1 2 AC SOURCE RL GL WL Y SR Y AC AC CAP TRIP DEV P...

Page 26: ...operates the paddle of the TOC switch The TOC switch contains contacts which are used to interlock the circuit breaker with other external devices and provide remote indication of breaker position 5 1...

Page 27: ...THE CLOSING SPRINGS STAND AT LEAST ONE METER AWAY FROM THE BREAKER WHEN TESTING FOR VACUUM INTEGRITY FAILURE TO FOLLOW ANY OF THESE INSTRUCTIONS MAY CAUSE DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAG...

Page 28: ...e t n i e c a l p e R e t a u q e d a t o n s i m u u c a v f i y d o b c i m a r e c n o t r i D k c e h C l a u s i V h t o l c e e r f t n i l y r d h t i w n a e l C s t c e n n o c s i D y r a m...

Page 29: ...splacement capacitive current the test unit should have sufficient volt ampere capacity It is recommended that the equipment be capable of delivering 25 milliamperes for one minute Although an AC high...

Page 30: ...of the breaker Connect the remaining poles and breaker frame to ground Start the machine with output potential at zero and increase to the test voltage Maintain the test voltage for one minute Repeat...

Page 31: ...the test levels by more than 15 Factory test levels are recorded on the Circuit Breaker Test Form 6 9 MECHANISM CHECK Make a careful visual inspection of the mechanism for any loose parts such as bol...

Page 32: ...rsonnel and equipment The recommendations and information contained herein are based on Eaton Electrical experience and judgment but should not be considered to be all inclusive or covering every appl...

Page 33: ...ove the transparent CloSureTM Tool Remove the tape from the cam and stick the tape on the front right side sheet of the circuit breaker Record the date of the test and the operations counter reading o...

Page 34: ...erface Date of Breaker Operations CloSure Distance Date of Breaker Operations CloSure Distance Date of Breaker Operations CloSure Distance A B C X Inches CloSure Overtravel CloSure Distance CloSure Po...

Page 35: ...h c e M h t d i W t e n i b a C h c n i r e p p U g n i t n u o M e l o H r e w o L g n i t n u o M e l o H r e k r a M t n e m e c a l P e l o H R V P H D 0 2 7 2 1 A 1 A 2 B 1 B 2 C 5 C R W P C V 8...

Page 36: ...effective for many years They should not be disturbed unless there is definite evidence of sluggishness dirt or parts are dis mantled for some reason If it becomes necessary to disassemble the mechani...

Page 37: ...picks up Close Coil Open or burned Latch Check Switch Contact open Bad switch or trip bar not reset Auxiliary Switch b contact open or burned Motor Cut Off Contacts open or burned Trip Coil Assy Clap...

Page 38: ...ary Switch a contact not making poor or burned Trip Coil Burned or open Terminals and Connections poor or burned or open Trip Mechanism Trip Clapper Jammed Trip Sound Trip Mechanism Trip Bar Trip Latc...

Page 39: ...ce severity and continuity requirements Each customer should develop his own level based on operating experience A replace ment parts data sheet RPD is included with each breaker 7 1 1 ORDERING INSTRU...

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Page 42: ...R WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CON TAINED HEREIN In no event will Eaton Corporation be responsible to...

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