1. Manuals
  2. Brands
  3. Powell Manuals
  4. Circuit breakers
  5. PowlVac 01.4IB.50032C
  6. Manual

Powell PowlVac 01.4IB.50032C Manual

Replacement vacuum circuit breaker; replacement for westinghouse type dhp air-magnetic circuit breaker
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
01.4IB.50032C PowlVac® DHP 15kV
Replacement Vacuum Circuit Breaker
Replacement for Westinghouse Type DHP
Air-Magnetic Circuit Breaker
Powered by Safety
®

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PowlVac 01.4IB.50032C and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Powell PowlVac 01.4IB.50032C

Summary of Contents for Powell PowlVac 01.4IB.50032C

  • Page 1 01.4IB.50032C PowlVac® DHP 15kV Replacement Vacuum Circuit Breaker Replacement for Westinghouse Type DHP Air-Magnetic Circuit Breaker Powered by Safety ®...
  • Page 2 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 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 ®...
  • Page 3 01.4IB.50032C Signal Words Qualified Person As stated in ANSI Z535.4-2007, the signal word is For the purposes of this manual, a qualified a word that calls attention to the safety sign and person, as stated in NFPA 70E®, is one who has designates a degree or level of hazard seriousness.

  • Page 4: Table Of Contents

    01.4IB.50032C Contents Ch 1 General Information ....................1 A. S ................................2 cope B. p ................................2 urpoSe c. I ....................2 nStructIon ulletInS vAIlABle lectronIcAlly D. A ........................2 SSocIAteD nStructIon ulletInS Ch 2 Safety ........................3 A. S ............................3 onDItIon B. S ...............................3 Afety uIDelIneS c.
  • Page 5 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Contents f. r ..............32 eMovInG the IrcuIt reAker froM the IrcuIt reAker oMpArtMent 1) Removing the Circuit Breaker from the Connected to the Test/Disconnected Position ........32 2) Removing the Circuit Breaker from the Test/Disconnected Position out of the Circuit Breaker Compartment ............................32 Ch 5 Maintenance ......................33 A.
  • Page 6 01.4IB.50032C Figures Figure 1 PowlVac® DHP Replacement Circuit Breaker - Front View ......7 Figure 2 PowlVac® DHP Replacement Circuit Breaker - Front Cover Removed ...8 Figure 3 PowlVac® DHP Replacement Circuit Breaker Mechanism ......9 Figure 4 PowlVac® DHP Replacement Circuit Breaker - Rear View ......10 Figure 5 Cam and Fundamental Linkage Positions ...........12 Figure 6...
  • Page 7 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Tables Table A Field Dielectric Test Values ..................25 Table B Lubrication ......................36 Table C Timing .........................44 Table D Primary Resistance .....................45 Table E Primary Current Path ..................53 Table F Control Devices ....................54 Table G Miscellaneous Parts ...................56 Powered by Safety ®...

  • Page 8: 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 9: S Cope

    1. Safety guidelines Go to www.powellind.com to ensure use of 2. General descriptions of the operation and the current instruction bulletin for the Powell maintenance of the PowlVac DHP vacuum equipment. circuit breaker 3.

  • Page 10: Ch 2 Safety

    01.4IB.50032C Ch 2 Safety 6. Where the possibility of induced voltages or stored electrical energy exists, ground A. S the phase conductors or circuit parts onDItIon before touching them. Where it could be The information in Section A is quoted from reasonably anticipated that the conductors NFPA 70E 2012 - Article 120, 120.1 Establishing an or circuit parts being deenergized...

  • Page 11: G Eneral

    2. DO NOT WORK ON A CIRCUIT BREAKER modification, or deform the parts. DO WITH THE CONTROL CIRCUIT ENERGIZED. NOT FORCE THE PARTS INTO POSITION. CONTACT POWELL FOR INSTRUCTIONS. Powered by Safety ® Safety...

  • Page 12: X-R Ays

    01.4IB.50032C 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 13: Ch 3 Equipment Description

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Ch 3 Equipment Description motion to engage or disengage the primary disconnecting devices and to open or close the A. G shutters in metal-clad switchgear. enerAl B. t The PowlVac® DHP replacement vacuum toreD nerGy echAnISM...

  • Page 14: Figure 1 Powlvac® Dhp Replacement Circuit Breaker - Front View

    01.4IB.50032C Figure 1 PowlVac® DHP Replacement Circuit Breaker - Front View a. Cover Bolt h. Manual Close Operator b. Blank Panel Operations Counter c. Handle Spring Charge Indicator d. Escutcheon k. Racking Shaft e. Manual Trip Operator Secondary Disconnect Hand Operating Rod f.

  • Page 15: Figure 2 Powlvac® Dhp Replacement Circuit Breaker - Front Cover Removed

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Figure 2 PowlVac® DHP Replacement Circuit Breaker - Front Cover Removed a. Anti-Pump Relay b. Opening Spring c. Connecting Rod d. Main Closing Spring e. Shock Absorber (Dashpot) f. Primary Shunt Trip Coil g.

  • Page 16: Figure 3 Powlvac® Dhp Replacement Circuit Breaker Mechanism

    01.4IB.50032C Figure 3 PowlVac® DHP Replacement Circuit Breaker Mechanism a. Main Closing Spring Latch Check Switch s. Drive Pawl b. Connecting Rod k. Jackshaft t. Close Latch Shaft c. Primary Shunt Trip Coil Holding Pawl Support Arm u. Closing Coil d.

  • Page 17: Figure 4 Powlvac® Dhp Replacement Circuit Breaker - Rear View

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Figure 4 PowlVac® DHP Replacement Circuit Breaker - Rear View a. Lift Point MOC Actuator b. Main Insulator (Wishbone) m. Ground Contact c. Upper Support Plate n. Rail Latch d. Upper Primary Riser o.
  • Page 18 01.4IB.50032C 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 19: Figure 5 Cam And Fundamental Linkage Positions

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Figure 5 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 ®...

  • Page 20: Figure 6 Mechanism And Trip Linkages

    01.4IB.50032C Figure 6 Mechanism and Trip Linkages a. Secondary Trip Prop 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 Center Phase Operating Lever Jackshaft k.
  • Page 21 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 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...

  • Page 22: Electrical Description

    01.4IB.50032C 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 23: Figure 7 Operation Sequence

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Figure 7 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 24: Figure 8 Typical Control Scemes

    01.4IB.50032C Figure 8 Typical Control Scemes FU/20A FU/35A FU/20A FU/35A LEGEND Pull Apart Fuse Block Anti-Pump Relay Spring Charge Limit Switch. Shown with Bkr. Trip Coil Breaker Closing Springs Discharged Latch Check Switch Bkr. Closing Coil Bkr. Closing Springs Charging Motor Normally Closed Bkr.

  • Page 25: Acking M Echanism

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C e. Control Circuit By traversing the racking nut along the racking screw, the circuit breaker is moved The typical electrical control scheme is between test and connected positions shown in Figure 8. The control scheme within the switchgear compartment.

  • Page 26: Figure 9 Racking Device And Interlock

    01.4IB.50032C Figure 9 Racking Device and Interlock • The control circuits cannot be broken when the circuit breaker is in the connected position. • The circuit breaker cannot be removed from the circuit breaker compartment with the circuit breaker closed or with the main closing spring charged.
  • Page 27 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C ii. Racking Interlock to protect inaccessible internal parts of the interlock assembly The racking interlock is from mechanical damage. If the designed to prevent moving pin is broken, it is an indication the circuit breaker in or out of that the circuit breaker should the connected position if the be opened before further...

  • Page 28: Moc (M Echanism O Perated C Ell Switch ) A Ctuator

    01.4IB.50032C D. Moc (M f. S echAnISM perAteD WItch ctuAtor econDAry ontActS The mechanism operated cell switch (MOC) is The circuit breaker control wiring is arranged operated by a lever actuator, which extends for a drawout disconnection by means of a 15 from the circuit breaker operating mechanism point male plug (Figure 4, k).

  • Page 29: G Round C Ontact

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C G. G rounD ontAct The ground contact (Figure 4, m) is an assembly of spring loaded fingers, which provides a means of grounding the circuit breaker frame after it has been inserted into the switchgear compartment.

  • Page 30: Ch 4 Installation

    Shipping and storage of electrical equipment nearest Powell representative. requires measures to prevent the deterioration of the apparatus over a long unused period. Estimated size and weight for shipping a...

  • Page 31: P Lacing The C Ircuit B Reaker Into S Ervice

    The equipment must breaker functions are thoroughly checked. The be protected from airborne external user must verify functions after receipt. Powell contaminates if stored outdoors. Outdoor recommends that the tests be performed in the storage will also require additional care...

  • Page 32: Table A Field Dielectric Test Values

    01.4IB.50032C To check insulation integrity, the AC high CAUTION potential test described below is strongly recommended. Using DC testing is not After the high potential is removed, an the preferred method, however, values are provided due to the availability of DC test electrical charge may be retained by the vacuum interrupters.

  • Page 33: Vacuum Integrity

    Voltage Insulation Integrity. indication of a defective vacuum interrupter, and may produce abnormal x-radiation. Powell offers a compact and lightweight PowlVac Vacuum Integrity Tester designed specifically for PowlVac circuit breakers. If this device is used, refer to the instruction bulletin provided with the vacuum integrity tester.

  • Page 34: Control Voltage Insulation Integrity

    01.4IB.50032C CAUTION CAUTION If DC high potential testing (hipot) is required, Remove all grounding conductors applied the DC high potential test machine must for this test before placing the circuit breaker not produce instantaneous peak voltages back into service. exceeding 50kV. 4) Mechanical Operation Check No attempt should be made to try to The mechanical operation of the circuit...

  • Page 35: Electrical Operation Check

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 5) Electrical Operation Check Alternatively, a test jumper cable may be used to electrically operate the circuit To check the basic electrical operation breaker using the control circuitry of the of the circuit breaker, a circuit breaker circuit breaker compartment.

  • Page 36: I Nserting The Ircuit Reaker Nto The Ircuit Reaker Ompartment

    IrcuIt make no attempt to repair. Contact reAker oMpArtMent Powell for further information. Refer to the metal-clad switchgear instruction bulletin and drawings produced specifically Examine the circuit breaker for the installed equipment for additional compartment to see that it is clean and...

  • Page 37: Inserting The Circuit Breaker To The Test/Disconnected Position

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C NOTICE CAUTION The ilustrations shown for all racking Do not start the circuit breaker into the procedures are provided to show device compartment with the turning dolly. This locations and are intended only as a could cause the MOC actuator to fail, which guideline.

  • Page 38: Inserting The Circuit Breaker To The Connected Position

    01.4IB.50032C f. Close the compartment door. The will rotate freely. If the pin shears, it is circuit breaker may now be electrically an indication that the circuit breaker closed and tripped by using the should be placed in the open position circuit breaker control switch on the before further racking is attempted.

  • Page 39: C Ompartment

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C f. r 2) Removing the Circuit Breaker from the eMovInG the IrcuIt reAker froM the IrcuIt Test/Disconnected Position out of the Circuit reAker oMpArtMent Breaker Compartment CAUTION CAUTION Prior to removing the circuit breaker from the circuit breaker compartment, make sure that Prior to removing the circuit breaker from the the control circuits are deenergized.

  • Page 40: Ch 5 Maintenance

    A permanent record of all maintenance and/or not fully understood, contact Powell work should be kept, the degree of detail immediately. depending upon the operating conditions.

  • Page 41: Inspection And Cleaning

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 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 register over one hundred operations.

  • Page 42: Lubrication

    Powell offers a complete lubrication kit (Powlube-104) which contains all the lubricants required for maintaining the circuit breakers. Powlube-104 consists of (1) A-grease, (1) B-grease, and (1) C-oil.
  • Page 43 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Table B Lubrication Reference Location Lubricant Method Figure Electrical Parts Primary Disconnecting Device Figure 10, b B-Grease Wipe clean. Apply lubricant only to actual contact surface. Ground Connection Figure 11, ac B-Grease Wipe clean. Apply lubricant only to actual contact surface. Secondary Disconnect Figure 10, o B-Grease...

  • Page 44: Figure 10 Lubrication

    01.4IB.50032C Figure 10 Lubrication b. Primary Spring Yoke Disconnecting Device Primary Trip d. Trip Shaft Prop Bearing Bearing Fundamental Jackshaft g. Pawl h. Jackshaft Crank Pin Linkage Pin Support Support Arm Outer Bearings Support Pawls Jackshaft Lever Ratchet Wheel m. Close Latch n.

  • Page 45: Figure 11 Lubrication (Cont)

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Figure 11 Lubrication (cont) q. Primary Trip p. Main Closing Prop Roller Spring Guide Secondary Primary Trip Linkage Roller Prop aa ab Open-Closed u. Compartment Fundamental w. Flag Support Close Shaft Flag Drive Interlock Trip Linkage Support...

  • Page 46: Closing Spring Removal

    01.4IB.50032C Figure 13 Main Closing Spring Assembly 3) Closing Spring Removal Installed The closing spring must be removed in order to perform slow closing of mechanism. Figure 12 Main Closing Spring Assembly Compressed for Removal a. Bracket b. Bolt c. Lock Washer d.

  • Page 47: Slow Closing Of Mechanism

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C g. With a slight rocking motion of c. When the close release latch arm has the main closing spring assembly, passed the close shaft latch plate, the connecting rods (Figure 12, e) can now manual close operator may be released.

  • Page 48: Figure 14 Primary & Secondary Trip Prop Adjustment

    01.4IB.50032C To adjust the pawl perform the b. Adjustment of Primary and Secondary following steps: Trip Prop Figure 14 Primary & Secondary Trip Prop 1. Remove the escutcheon to gain Adjustment access to the head of the bolt holding the adjusting eccentric. 2.

  • Page 49: Figure 15 Latch Check Switch Adjustment

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 3. Adjust the secondary trip prop 3. Loosen the two screws which secure adjusting screw (Figure 15, c) so that the latch check switch and rotate the secondary trip prop top edge the latch check switch about the is in the line of sight with the top pivot screw downward to the lowest of the rivet of the primary trip prop...

  • Page 50: Electrical Operation

    01.4IB.50032C d. Adjustment of Close Latch Shaft 6) Electrical Operation The close latch shaft (Figure 3, t) passes After performing any necessary mechanical through the side sheets of the stored and lubrication maintenance, operate the energy mechanism frame at the front of circuit breaker electrically several times to and below the cam shaft.

  • Page 51: Sliding Contact Wear

    When it is necessary to remove or replace the vacuum interrupter it should only be The PowlVac® DHP circuit breaker uses done by a qualified technician or a Powell a multi-contact assembly located inside service technician. Contact Powell for the upper contact block and in direct further assistance at 1-800-480-7273.

  • Page 52: Primary Resistance Check

    01.4IB.50032C 3) Primary Resistance Check This check is not required for routine maintenance but it is recommended after any major maintenance that requires disassembly of any part of the primary current path. To check the resistance, pass a minimum of 100A DC through the circuit breaker pole, with the circuit breaker closed.

  • Page 53: Ch 6 Recommended Renewal Parts And Replacement Procedures

    If the part is not in The vacuum interrupter should only be any of the tables, a description should be replaced by a qualified person or a Powell accompanied by a marked illustration from Service technician. Contact Powell for further this instruction bulletin, a photo or simply assistance at 1.800.480.7273.

  • Page 54: Figure 16 Tension Relieved On Opening Springs

    01.4IB.50032C Figure 17 Operating Pin Removal c. Measure and record the height of the opening springs. d. Relieve the tension on the opening springs by removing the locknuts and the hex nuts found on top of the opening springs. During this operation hold the circuit breaker open by inserting a large screwdriver or a similar tool under the pin connecting...

  • Page 55: Figure 18 Lower Contact Block Setting

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C k. Remove the vacuum interrupter o. Install the new vacuum interrupter in assembly. the circuit breaker by reversing steps k through g in this section. Measure and record the position of the upper contact block on the interrupter p.

  • Page 56: Figure 19 Bell Crank Removal

    01.4IB.50032C Figure 19 Bell Crank Removal v. Lubricate the pin with a liberal coat of A-grease. Insert the pin through both the bell cranks and the operating yoke, and place a new X-washer in the groove of the pin. Tighten the X-washer by squeezing the two open ends together with pliers.
  • Page 57 PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C z. Measure the stroke of the vacuum CAUTION interrupter contacts. This can be accomplished by measuring the distance from the top of the moving Do not force the lower contact block down farther than required to align the pin, bell contact block to the lower flange of cranks, and operating yoke as damage to the vacuum interrupter with the circuit...

  • Page 58: Sliding Contact Finger Assembly

    01.4IB.50032C 2) Sliding Contact Finger Assembly 3) Closing Coil Assembly To clean, inspect, and lubricate the sliding Refer to SM-1300 Closing Coil Assembly for contact finger assemblies (Figure 4, p), replacement and installation procedures. remove the four sockethead screws holding 4) Primary Shunt Trip Coil Assembly the sliding contact finger assemblies and pivot the assemblies down.

  • Page 59: Motor Cutoff Switch Assembly

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 10) Motor Cutoff Switch Assembly Refer to SM-1500 Motor Cutoff Switch Assembly for replacement and installation procedures. 11) Auxiliary Switch Refer to SM-1100 Auxiliary Switch Assembly for replacement and installation procedures. Powered by Safety ®...

  • Page 60: Figure 21 Primary Current Path

    01.4IB.50032C 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 15PV25DHP3 1200A 50952G01 5UC.101.110 50934G28 60500G40 15PV25DHP3 2000A 50952G01 5UC.101.110 50934G28 60500G40 15PV36DHP3 1200A...

  • Page 61: Table F Control Devices

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C 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 50027G05 50041G08 50042G06...

  • Page 62: Figure 22 Control Devices

    01.4IB.50032C Figure 22 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...

  • Page 63: Table G Miscellaneous Parts

    PowlVac® DHP 15kV Replacement Circuit Breaker 01.4IB.50032C Table G Miscellaneous Parts Description Catalog Number Illustration Auxiliary Switch Push-On Terminals 102108LN Screw-On Terminals 102108LP Latch Check Switch BA-2RV2-A2 Motor Cutoff Switch Assembly 50756G03 Image Not Available PowlVac® Hardware Kit 60500G24 PowlVac® Lubrication Kit Powlube-104 Operating Pushrod Assembly 25kA...
  • Page 64 Air-Magnetic Circuit Breaker July 2014 Powered by Safety ® Powell Electrical Systems, Inc. Tel: 713.944.6900 • Fax: 713.948.4569 Service Division - Houston www.powellind.com PO Box 12818 • Houston, TX • 77217 info@powellind.com ©2006 Powell Industries, Inc. • All rights reserved.

Table of Contents