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Powell PowlVac IB-60201 Manual

Std vacuum circuit breaker, 5kv & 15kv, 1200a, 2000a, 3000a
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IB-60201 PowlVac® STD
Vacuum Circuit Breaker
5kV & 15kV
1200A, 2000A, & 3000A
Powered by Safety
®
Courtesy of NationalSwitchgear.com

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Summary of Contents for Powell PowlVac IB-60201

  • Page 1 IB-60201 PowlVac® STD Vacuum Circuit Breaker 5kV & 15kV 1200A, 2000A, & 3000A Powered by Safety ® Courtesy of NationalSwitchgear.com...
  • Page 2 PowlVac® STD Vacuum Circuit Breaker IB-60201 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: 713.948.4569 Powered by Safety ® Courtesy of NationalSwitchgear.com...
  • Page 3 “IMPORTANT”. This is defined as: IMPORTANT IMPORTANT IMPORTANT indicates a section of the manual covering a non hazardous situation, but one where Powell feels proper attention is warranted. Powered by Safety ® Courtesy of NationalSwitchgear.com...
  • Page 4 PowlVac® STD Vacuum Circuit Breaker IB-60201 This page is intentionally left blank. Powered by Safety ® Courtesy of NationalSwitchgear.com...

  • Page 5: Table Of Contents

    IB-60201 Contents Ch 1 General Information ....................1 A. S ................................2 cope B. p ................................2 urpoSe c. I .....................2 nStructIon ulletInS vAIlABle lectronIcAlly Ch 2 Safety ........................3 A. S ............................3 ondItIon B. S ...............................3 Afety uIdelIneS c. G ................................4 enerAl d. S ................................4 pecIfIc e.
  • Page 6 PowlVac® STD Vacuum Circuit Breaker IB-60201 Contents Ch 4 Installation......................21 A. r ................................ 21 eceIvInG B. h ................................ 21 AndlInG c. S ................................22 torAGe d. p ......................23 lAcInG the IrcuIt reAker ervIce 1) High Voltage Insulation Integrity ............................23 2) Vacuum Integrity ..................................24 3) Control Voltage Insulation Integrity ..........................25 4) Mechanical Operation Check ..............................26...
  • Page 7 IB-60201 Contents Ch 5 Maintenance ......................39 A. G ............................39 enerAl eScrIptIon 1) Introduction .....................................39 2) Inspection and Cleaning ..............................40 B. M ............................. 40 echAnISM 1) Mechanical Operation ................................40 2) Lubrication ....................................44 3) Closing Spring Removal ................................44 4) Slow Closing of Mechanism ..............................45 5) Mechanism Adjustments ..............................46 6) Electrical Operation ................................50 c.
  • Page 8 PowlVac® STD Vacuum Circuit Breaker IB-60201 Figures Figure 1 PowlVac® STD Vacuum Circuit Breaker Front View with Cover ......7 Figure 2 PowlVac® STD Vacuum Circuit Breaker with Front Cover Removed ....8 Figure 3 PowlVac® STD Vacuum Circuit Breaker Rear View ........9 Figure 4 Cam and Fundamental Linkage Positions ...........11 Figure 5...
  • Page 9 IB-60201 Tables Table A Field Dielectric Test Values ..................23 Table B Lubrication ......................41 Table C Timing ........................51 Table D Primary Resistance ....................52 Table E Primary Current Path ..................63 Table F Control Devices ....................64 Table G Miscellaneous Parts ....................66 Powered by Safety ®...
  • Page 10 PowlVac® STD Vacuum Circuit Breaker IB-60201 This page is intentionally left blank. Powered by Safety ® Courtesy of NationalSwitchgear.com...

  • Page 11: Ch 1 General Information

    This document and all other documentation shall be fully read, understood, and all warnings and cautions shall be abided by. If there are any discrepancies or questions, the user shall contact Powell immediately at 1.800.480.7273.

  • Page 12: S Cope

    For more information visit PowlVac STD vacuum circuit breaker described www.powellind.com. To contact the in Ch 1 General Information, A. S cope Powell Service Division call 1.800.480.7273 or 713.944.6900, or email This instruction bulletin provides: info@powellservice.com. 1. Safety guidelines 2. General descriptions of the operation and...

  • Page 13: Ch 2 Safety

    IB-60201 Ch 2 Safety B. S Afety uIdelIneS Study this instruction bulletin and all other A. S ondItIon associated documentation before uncrating the circuit breakers. The information in Section A is quoted from NFPA 70E 2004 - Article 120, 120.1 Establishing an Each user has the responsibility to instruct and Electrically Safe Work Condition.

  • Page 14: G Eneral

    DO excessive dust, ash, corrosive atmosphere, NOT FORCE THE PARTS INTO POSITION. vermin and insect infestations. CONTACT POWELL FOR INSTRUCTIONS. d. S pecIfIc 1. DO NOT WORK ON AN ENERGIZED CIRCUIT BREAKER. If work must be...

  • Page 15: X-R Ays

    IB-60201 e. X-r f. S Afety ABelS When high voltage is applied across the The equipment described in this document has DANGER, WARNING, CAUTION, and contacts of a vacuum interrupter, there is the possibility of generation of X-rays. The intensity instruction labels attached to various locations.

  • Page 16: Ch 3 Equipment Description

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Ch 3 Equipment Description B. t tored enerGy echAnISM 1) Mechanical Description A. G enerAl The stored energy mechanism is located PowlVac® circuit breakers use sealed vacuum in the front of the circuit breaker behind interrupters (Figure 3, f ) to control the the front cover.

  • Page 17: Figure 1 Powlvac® Std Vacuum Circuit Breaker Front View With Cover

    IB-60201 Figure 1 PowlVac® STD Vacuum Circuit Breaker Front View with Cover a. Cover Bolts Manual Charging Crank b. Front Cover k. MOC Actuator c. Breaker Position Indicator Circuit Breaker Open/Closed Indicator d. Racking Drive Shaft Shutter m. Secondary Disconnect Receptacle e.

  • Page 18: Figure 2 Powlvac® Std Vacuum Circuit Breaker With Front Cover Removed

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 2 PowlVac® STD Vacuum Circuit Breaker with Front Cover Removed a. Anti-Pump Relay y. Close Latch Arm n. Auxiliary Switch b. Opening Spring z. Drive Pawl o Charging Motor c. Main Closing Spring aa.

  • Page 19: Figure 3 Powlvac® Std Vacuum Circuit Breaker Rear View

    IB-60201 Figure 3 PowlVac® STD Vacuum Circuit Breaker Rear View a. TOC Actuator m. Racking Shaft b. Main Insulator (Wishbone) n. Worm Gear c. Upper Primary Disconnecting Device o. Racking Drive Shaft d. Support Strut p. Ground Connection e. Insulating Pole Support q.
  • Page 20 PowlVac® STD Vacuum Circuit Breaker IB-60201 The mechanism employed in the circuit the mechanism. When the mechanism is breaker is a stored energy system which operated manually, the top pawl becomes uses a charging motor to compress the the drive pawl and the bottom pawl main closing spring.

  • Page 21: Figure 4 Cam And Fundamental Linkage Positions

    IB-60201 Figure 4 Cam and Fundamental Linkage Positions b) Breaker Closed - Spring Discharged a) Breaker Open - Spring Charged - Links Reset c) Breaker Open - Spring Discharged d) Breaker Closed - Spring Charged Powered by Safety ® Equipment Description Courtesy of NationalSwitchgear.com...

  • Page 22: Figure 5 Mechanism And Trip Linkages

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 5 Mechanism and Trip Linkages a. Secondary Trip Prop Adjusting Screw b. Secondary Trop Prop Shaft c. Secondary Trip Prop d. Secondary Linkage Roller e. Main Cam Roller f. Reset Spring g. Camshaft h.
  • Page 23 IB-60201 The close latch, when released either by the of the contact loading spring force, closing coil or the manual close operator, enabling a lower spring rate to be used. allows the main closing spring to pull the It also multiplies the contact movement crank arms upward thus rotating the main by a factor of approximately 3, so that the closing cam and driving the fundamental...

  • Page 24: Figure 6 Operation Sequence

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 6 Operation Sequence Secondary Disconnect Makes Motor “M” Green Light Energized Energized Close Spring Charged Makes Breaks Breaks Makes Makes White Light Motor “M” “Y” Circuit Energized Deenergized Disabled Close Control “CS/C” Makes Close Coil “CC”...

  • Page 25: Figure 7 Typical Ac Control Scheme

    IB-60201 Figure 7 Typical AC Control Scheme Figure 8 Typical DC Control Scheme LEGEND Anti-Pump Relay Pull Apart Fuse Block Latch Check Switch Spring Charge Limit Switch. Shown with Breaker Closing Springs Discharged Protective Relaying Bkr. Closing Springs Charging Motor Bkr.

  • Page 26: Electrical Description

    PowlVac® STD Vacuum Circuit Breaker IB-60201 With the standard electrical control c. Anti-Pump Relay scheme, as soon as the main closing spring The anti-pump relay (Figure 2, a) is discharged on a closing operation, the provides a logic function for the control charging motor is switched on to recharge circuit which prevents a continuous the springs.

  • Page 27: Acking M Echanism

    IB-60201 e. Control Circuit the breaker position indicator displays “BREAKER CONNECTED”, and this is The typical AC and DC electrical control fully visible in the aperture, the schemes are shown in Figures 7 & 8. The circuit breaker is in the connected control scheme of any particular circuit position.
  • Page 28 PowlVac® STD Vacuum Circuit Breaker IB-60201 • The control circuits cannot be or connected position. The manual trip broken when the circuit breaker is in operator also actuates the latch check the connected position. switch, thus blocking any electrical closing signal. • The circuit breaker cannot be removed from the circuit breaker Moving the shutter downward also compartment with the circuit moves a secondary disconnect...

  • Page 29: Standard Racking Mechanism

    IB-60201 2) Standard Racking Mechanism of the vacuum interrupter, and the lower device connected to the moving end of the The standard racking mechanism consists vacuum interrupter assembly. Each primary of a racking shaft (Figure 3, m) with racking disconnecting device (Figure 3, c & g) has crank arms (Figure 3, l) at each end which multiple contact fingers which will mate are supported by the frame side sheets.

  • Page 30: Toc (Truck Operated Cell Switch) Actuator

    PowlVac® STD Vacuum Circuit Breaker IB-60201 4) TOC (Truck Operated Cell Switch) Actuator 7) Anti-Rollout Latch The TOC, located in the switchgear, is The circuit breaker is equipped with an operated by circuit breaker truck position. anti-rollout latch (Figure 3, h) which To accomplish this, a TOC actuator prevents inadvertent removal from the (Figure 3, a) is located on the right top of...

  • Page 31: Ch 4 Installation

    When the circuit breaker is received check for any sign of damage. If damage is found or suspected, file all claims immediately with the transportation company and notify the nearest Powell representative. Estimated size and weight for shipping a PowlVac® STD vacuum circuit breaker on a pallet: • Size: 42” width x 42” depth x 47” height...

  • Page 32: S Torage

    PowlVac® STD Vacuum Circuit Breaker IB-60201 If necessary, the circuit breaker can be moved warm dry room of moderate temperature, by a fork lift truck or an overhead crane. such as 40°-100°F. Circuit breakers used in When using a fork lift truck take care to avoid outdoor metal-clad switchgear should be components located under the circuit breaker stored in the equipment only when power...

  • Page 33: P Lacing The C Ircuit B Reaker I Nto S Ervice

    DC testing is not the breaker functions are thoroughly checked. The preferred method, however, values are user must verify functions after receipt. Powell provided due to the availability of DC test recommends that the tests be performed in the sets.

  • Page 34: Vacuum Integrity

    The tests described in this section are the Powell recommends AC testing for reliable only tests required to ascertain insulation verification of vacuum integrity. All integrity. Because of the design of the PowlVac 5kV and 15kV circuit breakers PowlVac®...

  • Page 35: Control Voltage Insulation Integrity

    IB-60201 Powell recognizes the widespread use No attempt should be made to try to of DC hipot equipment in the field and compare the condition of one vacuum the desire to use this equipment to verify interrupter with another, nor to correlate vacuum integrity.

  • Page 36: Mechanical Operation Check

    PowlVac® STD Vacuum Circuit Breaker IB-60201 4) Mechanical Operation Check CAUTION CAUTION The contacts of the vacuum interrupter Care must be exercised to keep personnel, during normal operation cannot be closed unless the secondary disconnect plug is tools, and other objects clear of mechanism which are to be operated or released.

  • Page 37: Racking Mechanism Check

    IB-60201 6) Racking Mechanism Check CAUTION CAUTION The standard design of racking mechanisms The MOC actuator is exposed when the circuit may be checked outside the circuit breaker breaker is outside the metal-clad switchgear compartment by inserting the secondary and can cause serious injury if the test disconnect override device (Figure 12) into personnel or any object is in the travel path the secondary disconnect receptacle.

  • Page 38: I Nserting C Ircuit B Reaker I Nto T

    PowlVac® STD Vacuum Circuit Breaker IB-60201 The breaker position indicator on the CAUTION CAUTION front of the circuit breaker should display, “BREAKER TEST/DISCONNECTED”. Pole unit parts are energized at full circuit Rotate the racking handle in a clockwise voltage when the circuit breaker is in the direction.

  • Page 39: Prior To Inserting The Circuit Breaker Into The Circuit Breaker Compartment

    Through make no attempt to repair. Contact Door Racking option on the Standard Powell for further information. Circuit Breaker. Note: The described racking procedures Examine the circuit breaker compartment to see that it is clean and...

  • Page 40: Inserting The Circuit Breaker To The Test/Disconnected Position

    PowlVac® STD Vacuum Circuit Breaker IB-60201 2) Inserting the Circuit Breaker to the CAUTION CAUTION Test/Disconnected Position Before inserting any circuit breaker into a CAUTION CAUTION compartment, the user must verify that the circuit breaker rating meets or exceeds the Prior to inserting the circuit breaker into the metal-clad switchgear rating.

  • Page 41: Inserting The Circuit Breaker To The Connected Position

    IB-60201 Figure 13 Secondary Disconnecting Device Figure 14 Standard Circuit Breaker in Test Position a. Handle b. Secondary Disconnect Receptacle 3) Inserting the Circuit Breaker to the Connected c. Secondary Disconnect Plug Position d. Secondary Disconnect Latch d. Insert the circuit breaker compartment CAUTION CAUTION secondary disconnect plug into the...

  • Page 42: Figure 15 Pushing Manual Trip Operator & Accessing Racking Drive Shaft

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 15 Pushing Manual Trip Operator & circuit breaker reaches the end of the Accessing Racking Drive Shaft racking travel, the user will notice an increased amount of force. If the operator continues to apply force, a torque limiter on the racking handle will produce a sharp clicking sound indicating the torque limit is reached at...

  • Page 43: R Emoving The C Ircuit B Reaker From The

    IB-60201 f. r c. Release the manual trip operator. It will eMovInG the IrcuIt reAker froM the IrcuIt remain actuated as long as the shutter is reAker oMpArtMent held open by the racking handle socket. 1) Removing the Circuit Breaker from the d.

  • Page 44: I Nserting The C Ircuit B

    PowlVac® STD Vacuum Circuit Breaker IB-60201 c. Press the anti-rollout latch (Figure 20) to c. Roll the circuit breaker in the release the circuit breaker and pull the compartment until the racking crank circuit breaker out of the circuit breaker arms contact with the vertical slots in the compartment.

  • Page 45: Figure 17 Racking Drive Shaft Extension Insertion

    IB-60201 Figure 17 Racking Drive Shaft Extension Figure 18 Accessing Racking Drive Shaft Insertion Extension a. Levering Access a. Racking Drive Shaft Extension (Teardrop)Flap b. Manual Trip Operator c. Secondary Disconnect Plug c. Close the compartment door. d. Rotate the levering access (teardrop) a.

  • Page 46: Figure 19 Through Door Racking Option

    PowlVac® STD Vacuum Circuit Breaker IB-60201 f. Turning the racking handle clockwise Figure 19 Through Door Racking Option will begin to rack the circuit breaker into the compartment (Figure 19). When the circuit breaker is racked into the compartment, the force needed to rotate the racking handle will be low at the beginning of motion as the movement of the racking crank arms...

  • Page 47: Emoving The C Ircuit B

    IB-60201 h. r socket may be used to push down the eMovInG the IrcuIt reAker SInG hrouGh shutter to gain access to the racking ptIon drive shaft. 1) Removing the Circuit Breaker from the c. Release the manual trip operator. It will Connected to the Test/Disconnected remain actuated as long as the shutter Position...

  • Page 48: Removing The Circuit Breaker From The Test/Disconnected Position Out Of The Circuit Breaker Compartment

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 20 Anti-Rollout Latch Note: Removing the secondary disconnect plug will trip a closed breaker and discharge the main closing spring. c. Press the anti-rollout latch to release the circuit breaker and pull the circuit breaker out of the circuit breaker compartment using the handles (Figure 20).

  • Page 49: Ch 5 Maintenance

    Powell A permanent record of all maintenance immediately. work should be kept, the degree of detail depending upon the operating conditions.

  • Page 50: Inspection And Cleaning

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Because of extensive quality control tests Primary insulation, including the vacuum made at the factory, the operations counter interrupter supports and the operating on a new circuit breaker will normally pushrods, should be cleaned. Wipe clean with a dry lint-free cloth or an industrial register over one hundred operations.

  • Page 51: Table B Lubrication

    IB-60201 Table B Lubrication Reference Location Lubricant Method Figure Electrical Parts Primary Disconnecting Device Figure 21, b Mobilgrease 28 Wipe clean. Apply lubricant only to actual contact surface. Ground Connection Figure 22, x Mobilgrease 28 Wipe clean. Apply lubricant only to actual contact surface. Secondary Disconnect Figure 21, g Mobilgrease 28 Wipe clean.

  • Page 52: Figure 21 Lubrication

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 21 Lubrication b. Primary Spring Yoke Disconnecting Device Primary Trip d. Trip Shaft Prop Bearing Bearing g. Secondary Pawl h. Crank Pin Jackshaft Fundamental Disconnect Support Arm Support Linkage Pin Receptacle m. Motor Drive n.

  • Page 53: Figure 22 Lubrication (Cont)

    IB-60201 Figure 22 Lubrication (cont) p. Racking Main Closing Mechanism Spring Guide q. Primary Trip Secondary Prop Roller Linkage Roller ab ac Primary Trip Fundamental Open-Closed Flag Support w. Jackshaft Ground Prop Linkage Flag Drive Outer Bearings Connection Lever Pin at Support Jackshaft Close Shaft...

  • Page 54: Lubrication

    Before applying any type of lubrication to the circuit breaker, the stored energy mechanism should be in the open position, and all springs should be discharged. Powell offers a complete lubrication kit (Powlube-102) which contains all the lubricants required for maintaining the circuit breakers. Powlube-102 contains Rheolube 368A grease, Anderol 456 oil, and a.

  • Page 55: Slow Closing Of Mechanism

    IB-60201 Figure 24 Main Closing Spring Assembly WARNING WARNING Installed When any maintenance procedure requires the opening or closing of the circuit breaker or the charging of any of the stored energy mechanism springs, exercise extreme caution to make sure that all personnel, tools, and other miscellaneous objects are kept well clear of the moving parts or the charged springs.

  • Page 56: Mechanism Adjustments

    PowlVac® STD Vacuum Circuit Breaker IB-60201 d. Continue to operate the charging To adjust the pawl perform the handle until the crank arms point following steps: upward. The circuit breaker will now be 1. Remove the escutcheon to gain closed and there will be a gap between access to the head of the bolt the operating pushrod lock nuts and holding the adjusting eccentric.

  • Page 57: Figure 25 Primary Trip Prop Adjustment

    IB-60201 b. Adjustment of Primary Trip Prop c. Tripping System Adjustment Figure 25 Primary Trip Prop Adjustment WARNING WARNING Prior to performing any adjustment or maintenance procedure, all high voltage components shall be deenergized, disconnected by means of a visible break, and securely grounded.

  • Page 58: Figure 26 Feeler Gauge

    PowlVac® STD Vacuum Circuit Breaker IB-60201 7. Turn the secondary trip prop adjusting 13. Choose one of the following steps screw counter-clockwise 1½ full turns according to the TRIP status: from the position noted in step 6. If the circuit breaker TRIPPED during 8.

  • Page 59: Figure 27 Latch Check Switch Adjustment

    IB-60201 16. Repeat steps 9 through 15 until the To adjust the latch check switch perform breaker does not trip with the 0.090” the following steps: gauge inserted in the trip coil armature 1. Remove the main closing spring gap and does trip with the 0.030” gauge Refer to Ch 5 Maintenance, inserted into the trip coil armature gap.

  • Page 60: Electrical Operation

    PowlVac® STD Vacuum Circuit Breaker IB-60201 6. Depress the manual close operator 6. Turn the close bar adjusting screw and rotate the crank arm until 3 to 3½ full turns counterclockwise. resistance is felt. Retighten the locking nut holding 7. Depress and hold the manual trip the screw.

  • Page 61: Vacuum Integrity

    Again, at normal control done by a qualified technician or a Powell voltage, operate the test source to the service technician. Contact Powell for “open”...

  • Page 62: Primary Resistance Check

    PowlVac® STD Vacuum Circuit Breaker IB-60201 3) Primary Resistance Check The micro-ohm values of resistance must not exceed the following limits: This check is not required for routine maintenance but it is recommended after Table D Primary Resistance any major maintenance that requires Rated Breaker Rated...

  • Page 63: Ch 6 Recommended Renewal Parts And Replacement Procedures

    The recommended quantity is not specified. This must be determined 1. Order Renewal Parts from Powell at by the user based on the application. As a www.powellind.com or call 1.800.480.7273. minimum, it is recommended that one set of parts be stocked per ten circuit breakers or less.

  • Page 64: Vacuum Interrupter Assembly

    Figure 28 Tension Relieved on Opening Springs CAUTION CAUTION The vacuum interrupter should only be replaced by a qualified person or a Powell Service technician. Contact Powell for further assistance at 1.800.480.7273. CAUTION CAUTION e. If present, loosen the set screw holding Ensure all operating springs are discharged the operating yoke to the operating pin.
  • Page 65 IB-60201 Loosen, but do not remove the four and lower blocks are approximately bolts connecting the vertical connector parallel. The recommended method of bars above the vacuum interrupter installing the upper contact block is to to the upper primary disconnecting restrain the block in a vise or a similar devices.

  • Page 66: Figure 30 Lower Contact Block Setting

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Figure 30 Lower Contact Block Setting u. Remove the pin and reassemble the bell cranks. Figure 32 Operating Yoke Setting q. Remove the nut from the bell crank mounting bolt and remove the bell cranks (Figure 31).
  • Page 67 IB-60201 w. Apply a light coat of Mobilgrease 28 to the left and right sides of the lower CAUTION CAUTION contact block and reassemble the sliding contact finger assembly. Tighten If adjustment of the operating yoke is with a torque wrench to 8-12 lb-ft. If required, ensure that the control circuits present, tighten the set screw in the are deenergized and the circuit breaker is...

  • Page 68: Sliding Contact Finger Assembly

    PowlVac® STD Vacuum Circuit Breaker IB-60201 f. Repeat the above steps as required to ends of the fingers show noticeable wear, obtain the specified stroke. the finger assemblies can be reversed. With the circuit breaker closed, Loosen the bolt holding the rear mounting measure the gap between the clip and remove the finger assembly.

  • Page 69: Primary Shunt Trip Coil Assembly

    IB-60201 d. Remove the two bolts which hold the Adjustments, c. Tripping System Adjustment. assembly to the circuit breaker base pan, and lower the assembly out of the e. Trip the circuit breaker electrically bottom of the circuit breaker. several times to ensure that the primary e.

  • Page 70: Undervoltage Device Assembly (Uv)

    PowlVac® STD Vacuum Circuit Breaker IB-60201 d. Bolt the new assembly in place and d. Lubricate the end of the shaft of the reconnect it to the wiring harness. No new charging motor generously with adjustment is required. Rheolube 368A grease. e.

  • Page 71: Latch Check Switch

    IB-60201 e. Place the new anti-pump relay over e. Adjust the switch. To adjust the switch see Ch 5 Maintenance, B. M the lower screw and reinstall the upper echAnISM screw and tighten both screws. , 5) Mechanism Adjustments, d. Latch Check Switch Adjustment. f.

  • Page 72: Auxiliary Switch

    PowlVac® STD Vacuum Circuit Breaker IB-60201 11) Auxiliary Switch Operate the circuit breaker electrically several times to ensure the switch The auxiliary switch is located on the lower functions properly. left front of the mechanism area Replace the front cover (Figure 2, n).

  • Page 73: Figure 33 Primary Current Path

    IB-60201 Table E Primary Current Path Breaker Rated Primary Operating Vacuum Rated Sliding Contact Type k Continuous Disconnecting Pushrod Interrupter Finger Assembly factor = 1 Current Device Assembly Assembly 05PV36 4.76 1200A 50952G01P 50403P04 50934G19P 60501G02P 05PV36 4.76 2000A 50952G01P 50403P01 50934G19P 60501G02P...

  • Page 74: Table F Control Devices

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Table F Control Devices Primary Shunt Trip Coil Secondary Undervoltage Charging Control Assembly (2) Shunt Trip Anti-Pump Closing Coil Device Motor Voltage Coil Assembly Relay (5) Assembly Assembly (4) Assembly 3-Cycle 5-Cycle 24VDC 50027G05P 50041G08P 50042G06P 50028G08P...

  • Page 75: Figure 34 Control Devices

    IB-60201 Figure 34 Control Devices a. Primary Shunt Trip Coil (3 cycle) b. Primary Shunt Trip Coil (5 cycle) c. Charging Motor Assembly d. Closing Coil Assembly e. Anti-Pump Relay f. Undervoltage Device Assembly Powered by Safety ® Recommended Renewal Parts and Replacement Procedures Courtesy of NationalSwitchgear.com...

  • Page 76: Table G Miscellaneous Parts

    PowlVac® STD Vacuum Circuit Breaker IB-60201 Table G Miscellaneous Parts Description Catalog Number Illustration Auxiliary Switch Push-On Terminals 102108LN Screw-On Terminals 102108LP Ground Connection 25kA 50951G02P 36kA 50952G03P 50kA 50952G02P Latch Check Switch BA-2RV2-A2 Motor Cutoff Switch Assembly 50756G03P Image Not Available PowlVac®...
  • Page 77 IB-60201 PowlVac® STD Vacuum Circuit Breaker 5kV & 15kV 1200A, 2000A, & 3000A May 2008 Powered by Safety ® Powell Electrical Systems, Inc. Tel: 713.944.6900 • Fax: 713.948.4569 Service Division - Houston www.powellind.com Courtesy of NationalSwitchgear.com PO Box 12818 • Houston, TX • 77217 info@powellind.com ©2006 Powell Industries, Inc. • All rights reserved.

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