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PowlVac® CDR 27kV & 38kV Vacuum Circuit Breaker

IB-65020A

Equipment Description

Figure 2

Rear View of PowlVac® CDR

Circuit Breaker

a. Upper Primary Disconnect (3)

b. Lifting Points (2)

c. Vacuum Interrupter (3)

d. Lower Primary Disconnect (3)

e. High Voltage Insulator (3)

f. Jackshaft Pin

g. Operating Pushrod (3)

h. Shutter Operator

i. Main Shaft Pin

j. Engraved Serial Number Plate

k. Interference Plate

l. Wheel

a

c

b

d

g

h

j

l

e

f

i

k

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Содержание PowlVac IB-65020A CDR 27kV

Страница 1: ...IB 65020A PowlVac CDR 27kV 38kV Vacuum Circuit Breaker 27kV 38kV 1200A 2000A Powered by Safety...

Страница 2: ...wered by Safety IB 65020A Contact Information Powell Electrical Systems Inc www powellind com info powellind com Service Division PO Box 12818 Houston Texas 77217 2818 Tel 713 944 6900 Fax 713 948 456...

Страница 3: ...oderate injury Not stated in ANSI Z535 4 2002 4 13 4 13 3 as a signal word but used in this manual is IMPORTANT This is defined as IMPORTANT indicates a section of the manual covering a non hazardous...

Страница 4: ...Switch Actuator 21 4 TOC Truck Operated Cell Switch Actuator 21 5 Ground Connection 21 6 Shutter Operator 21 7 Test Position Interlock 21 E Vacuum Interrupters 21 F Vacuum Interrupter Connections 21...

Страница 5: ...sm Adjustments 40 6 Electrical Operation 46 C Vacuum Interrupter and Contact Area 46 1 Vacuum Interrupter and Contact Erosion 46 2 Vacuum Integrity 46 3 MechanicalAdjustmentofVacuumInterrupters 47 D O...

Страница 6: ...ing the Circuit Breaker by Crane 23 Figure 14 Top View L Shaped Slot 30 Figure 15 Push to Trip Knob Racking Access Window 31 Figure 16 Racking Indicator Flags Racking Handle 31 Figure 17 Main Closing...

Страница 7: ...Powered by Safety iv PowlVac CDR 27kV 38kV Vacuum Circuit Breaker IB 65020A This page is intentionally left blank...

Страница 8: ...is performed requiring physical contact with the electrical working components or wiring of this equipment the power supply must be disconnected Failure to follow this warning may result in injury or...

Страница 9: ...ewal parts 6 Procedure for critical adjustments 7 Illustrations photographs and description of the circuit breaker The illustrations contained in this document may not represent the exact construction...

Страница 10: ...trical energy exists ground the phase conductors or circuit parts before touching them Where it could be reasonably anticipated that the conductors or circuit parts being deenergized could contact oth...

Страница 11: ...e it from service and remove it from the metal clad switchgear 2 DO NOT WORK ON A CIRCUIT BREAKER WITH THE CONTROL CIRCUIT ENERGIZED 3 EXTREME CARE MUST BE EXERCISED TO KEEP ALL PERSONNEL TOOLS AND OT...

Страница 12: ...errupters and that the test personnel be no closer than one meter 3 from the front of the circuit breaker THE CIRCUIT BREAKER SHALL BE EITHER FULLY OPEN OR FULLY CLOSED WHEN MAKING HIGH POTENTIAL TEST...

Страница 13: ...place with cover bolts 12 Figure 1 i The bolts may be removed to allow access to the stored energy mechanism and its interlocks auxiliary switches and other control devices CAUTION CAUTION Prior to re...

Страница 14: ...ry Disconnect Receptacle Guide f Secondary Disconnect Receptacle g Secondary Disconnect Latch h Nameplate i Front Cover Bolts 12 h g f e i a c d j k l m n o p q r b j Mechanism Operated Cell Switch MO...

Страница 15: ...of PowlVac CDR Circuit Breaker a Upper Primary Disconnect 3 b Lifting Points 2 c Vacuum Interrupter 3 d Lower Primary Disconnect 3 e High Voltage Insulator 3 f Jackshaft Pin g Operating Pushrod 3 h Sh...

Страница 16: ...rcuit Breaker Compartment a Racking Indicator Flag b Push to Trip Knob c Racking Access Window d Primary Disconnect Bushing e Shutter f Shutter Lift Arm g Center Alignment Block h Ground Bus i Compart...

Страница 17: ...Safety 10 PowlVac CDR 27kV 38kV Vacuum Circuit Breaker IB 65020A Equipment Description Figure 4 Operating Pushrod Assembly of PowlVac CDR Circuit Breaker Figure 5 Ground Connection of PowlVac CDR Circ...

Страница 18: ...nk pins Figure 7 g are assembled to the crank arms which point outward The crank arms engage the bottom ends of the connecting rods Figure 6 e The pins that project from the spring yoke which straddle...

Страница 19: ...Equipment Description Figure 6 Front View of PowlVac CDR Circuit Breaker without Cover a Opening Spring b Anti Pump Relay c Trip Tube d Main Closing Spring e Connecting Rod f Opening Anti Bellows Spr...

Страница 20: ...port Arm e Jackshaft f Holding Pawl Adjusting Eccentric g Crank Pin h Crank Arm i Ratchet Wheel j Pawl Lift Drive Plate k Close Latch Arm l Close Latch Shaft m Drive Pawl n Pawl Support Arm o Closing...

Страница 21: ...Vacuum Circuit Breaker IB 65020A Equipment Description Figure 8 Cam and Fundamental Linkage Positions a Breaker Open Spring Charged Links Reset c Breaker Open Spring Discharged b Breaker Closed Spring...

Страница 22: ...op Adjusting Screw b Secondary Trip Prop Shaft c Secondary Trip Prop d Secondary Linkage Roller e Main Cam Roller f Reset Spring g Camshaft h Main Closing Cam i Center Phase Operating Lever j Jackshaf...

Страница 23: ...s Figure 6 a f The fundamental linkage is restrained from movement by the secondary trip prop Figure 9 c acting on the primary trip prop roller Figure 9 k A component of force tends to make the primar...

Страница 24: ...for the control circuit which prevents a continuous electrical close signal from causing the circuit breaker to continuously reclose after a trip signal The anti pump relay is located on the circuit b...

Страница 25: ...es LS Breaks LS Makes 52 b Breaks VCB Closed White Light Deenergized Motor M Energized Prevents Close Coil Energization Before Spring is Fully Charged Y Coil Energized Close Coil CC Deenergized 52 b B...

Страница 26: ...s Reference Tables LS SD LCS 1 2 3 4 5 6 7 8 9 10 11 12 15 14 13 16 17 18 19 20 21 22 23 24 104C 115F 104C 115B 104A 115F 111F 111F 109F 105F 115F 111F 109F 105F 104D 115A 109F 105F 109E 115E 115E 111...

Страница 27: ...em 38 Metal Clad Switchgear for racking information D Circuit Breaker Compartment Interfaces 1 Primary Disconnecting Devices There are six primary disconnecting devices on the circuit breaker They are...

Страница 28: ...he circuit breaker until the circuit breaker is removed from the compartment 6 Shutter Operator The shutter operator Figure 2 h is located on each side of the circuit breaker frame As the circuit brea...

Страница 29: ...ent In these cases the circuit breaker will be in the test disconnect position and it will be bolted to the compartment floor by use of a shipping bracket The horizontal leg of the bracket is bolted t...

Страница 30: ...ti condensation heaters are in operation 2 The circuit breaker should be stored in a clean location free from corrosive gases or fumes Particular care should be taken to protect the equipment from moi...

Страница 31: ...sistance tester a record should be kept of the insulation resistance tester readings as well as the temperature and humidity readings This record should be used to detect any weakening of the insulati...

Страница 32: ...The radiation may increase with increased voltage and or decreased contact spacing The x radiation produced during this test with the voltage specified in Table A and normal contact spacing is extreme...

Страница 33: ...ve a false indication of a defective vacuum interrupter and may produce abnormal x radiation CAUTION CAUTION If DC high potential testing is performed the DC high potential test machine must not produ...

Страница 34: ...operation of the circuit breaker a circuit breaker test cabinet should be used Connect the secondary disconnect from the test cabinet to the circuit breaker to be tested The test cabinet provides cont...

Страница 35: ...fore installing any circuit breaker into a compartment the user MUST verify that the circuit breaker rating meets the metal clad switchgear rating 1 Prior to Inserting the Circuit Breaker into the Cir...

Страница 36: ...e accomplished by several similar methods The Closed Door Racking circuit breaker CDR may be racked manually or electrically using the optional Power Racking device Power racking enables the user to r...

Страница 37: ...cle Figure 1 f on the circuit breaker The secondary disconnect blocking pin will drop and the secondary disconnect plug will be held captive to the circuit breaker e Pivot the secondary disconnect lat...

Страница 38: ...y racked into the circuit breaker compartment Once the circuit breaker is fully connected the racking indicator flag Figure 16 a will display CONNECTED b Remove the racking handle and close the rackin...

Страница 39: ...nob is pressed in slide the racking access window Figure 15 b to the left c Insert the racking handle Rotate the handle counterclockwise out direction thus beginning the racking out of the circuit bre...

Страница 40: ...Any time the circuit breaker is known to have interrupted a fault current at or near its rating it is recommended that the circuit breaker be inspected and the necessary maintenance be performed as so...

Страница 41: ...with a dry lint free cloth or an industrial type wiper to clean the circuit breaker Do not use solvents de greasers or any aerosol products to clean in the area of any mechanisms Refer to Ch 5 Mainte...

Страница 42: ...B Lubrication See Figures 19 and 20 for labeled lubrication photographs Table B Lubrication lists the location of all surfaces that should be lubricated the type of lubricant to be used and the method...

Страница 43: ...rom the spring yoke pins and the main closing spring assembly can be removed Note Care should be taken on reassembly to ensure correct location of the flat washer lock washer and spacer Figure 18 Figu...

Страница 44: ...56 Oil Pawls Figure 19 l Anderol 456 Oil Close Latch Shaft Face Figure 19 n Rheolube 368A Grease Apply a light coating of grease and remove all excess Ratchet Wheel Figure 19 k Rheolube 368A Grease Fu...

Страница 45: ...f Trip Shaft Bearing h Jackshaft Support i Pawl Support Arm j Crank Pin m Motor Drive Shaft Roller Needle Bearings n Close Latch Shaft Face g Fundamental Linkage Pin k Ratchet Wheel c Primary Disconn...

Страница 46: ...shaft t Flag Support Pin u Jackshaft Outer Bearings Support ab Wheel z Motor Drive Shaft Coupling r Fundamental Linkage y Motor Cutoff Cam x Close Shaft Support Bearing v Camshaft Needle Bearings w Mo...

Страница 47: ...chanism CAUTION CAUTION Do not adjust these setting unnecessarily as damage to the circuit breaker may result a Adjustment of Ratchet Wheel Holding Pawl The holding pawl support arm Figure 7 d is adju...

Страница 48: ...primary trip prop adjusting screw is accessible from the rear of the stored energy mechanism and is located inside the hole beside the lower middle insulator supporting the live part assembly 3 Adjus...

Страница 49: ...sting screw locking nut 9 Manually charge the main closing spring using the manual charge handle per Ch 4 Installation D Placing the Circuit Breaker Into Service 4 Mechanical Operation Check 10 Manual...

Страница 50: ...erator upwards slightly using channel lock pliers or a small crescent wrench Note Bend the latch check operator in very small increments This process may take several attempts 17 Repeat steps 9 throug...

Страница 51: ...from the top of the circuit breaker v Rotate the trip armature actuator to achieve the desired height of 1 676 0 06 Figure 25 b from the top of the trip roller Figure 25 a to the top of the circuit b...

Страница 52: ...owest position allowed The latch switch contacts are now OPEN 4 Insert a 0 045 gauge between the secondary trip prop adjusting screw Figure 26 c and latch check operator Rotate the latch check switch...

Страница 53: ...ocking nut holding the screw 7 Repeat step 4 Then CLOSE and OPEN the circuit breaker to ensure proper operation 8 Replace the escutcheon 6 Electrical Operation After performing any necessary mechanica...

Страница 54: ...hen the circuit breaker has been in storage for an extended time especially in a damp location or other adverse environment In these cases both the High Voltage Insulation Integrity and Control Voltag...

Страница 55: ...of the circuit breaker being measured When making this test be sure that the test current passes through both main horizontal primary disconnecting devices of each pair or the resistance measurement...

Страница 56: ...parts Tables E F and G list the recommended spare parts to be carried in stock by the user The recommended quantity is not specified This must be determined by the user based on the application As a...

Страница 57: ...pencil trace an outline of the bottom bus support 7 on the high voltage housing 11 During reassembly the outline will enable proper alignment of these devices viii Remove both hex head cap screws 23 a...

Страница 58: ...should be visible beneath the lowest surface of the front terminal clamp 10 The label of the vacuum interrupter 3 should be pointed in the same direction as the shunt 6 as well as in the same directi...

Страница 59: ...reinstall hex head cap screws 32 xiii Tighten the socket set screws 41 Note Make certain the hardware is torqued correctly and the parts are installed in the same positions as they were before being r...

Страница 60: ...Renewal Parts and Replacement Procedures Figure 27 Vacuum Interrupter Assembly Drawing 38kV 1200A W L 3 5 6 1 6 B P 1 2X 23 2X 41 16 2 4X 20 2X 39 7 35 10 11 2X 39 6 3 18 2X 24 4 12 13 14 45 2X 46 42...

Страница 61: ...y in place and reconnect it to the wiring harness d Perform the Tripping System Adjustment found in Ch 5 Maintenance B Mechanism Area 5 Mechanism Adjustments c Tripping System Adjustment e Trip the ci...

Страница 62: ...Undervoltage Assembly for replacement and installation procedures 6 Charging Motor Assembly Refer to SM 1200 Charging Motor Assembly for replacement and installation procedures 7 Anti Pump Relay Assem...

Страница 63: ...act Primary Disconnecting Device 38PV40CDR 38 1200 43649G02P 40723P01 43315P01 6 38PV40CDR 38 2000 43650G02P 43667P01 Upper 43651G01P Lower 43316P01 27PV25CDR 27 1200 43642G03P 40723P01 43315P01 6 27P...

Страница 64: ...041G04P 50042G05P n a n a n a n A Notes 1 One required per circuit breaker if the circuit breaker was originally equipped with this item All circuit breakers have a closing coil primary shunt trip coi...

Страница 65: ...B 65020A Recommended Renewal Parts and Replacement Procedures Figure 29 Control Devices a b c d e a Primary Shunt Trip Coil 3 cycle b Primary Shunt Trip Coil 5 cycle c Charging Motor Assembly d Closin...

Страница 66: ...ustration Auxiliary Switch Push On Terminals 102109LN Screw On Terminals 102109LP Ground Connection 25kA 40767G01 40kA 40767G01 Latch Check Switch BA 2RV2 A2 Motor Cutoff Switch Assembly 50756G03P Ima...

Страница 67: ...Powered by Safety 60 PowlVac CDR 27kV 38kV Vacuum Circuit Breaker IB 65020A Recommended Renewal Parts and Replacement Procedures This page is intentionally left blank...

Страница 68: ...Division Houston PO Box 12818 Houston TX 77217 Tel 713 944 6900 Fax 713 948 4569 www powellind com info powellind com 2006 Powell Industries Inc All rights reserved 27kV 38kV 1200A 2000A IB 65020A Pow...

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