3ah3 vacuum circuit breaker manual

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3ah3 vacuum circuit breaker manual

All rights reserved. Hazards are classified and indicated in the operating instructions and on the vacuum circuit-breaker as follows: DANGER. Siemens Parts 9229 9860 176 0E. Transporting with crane or fork lift Fig. 1 Transporting the pallet with carton (I) Fig. 2 Transporting the wooden case (III) Siemens Parts 9229 9860 176 0E 2013-08-22. Transporting with pallet, The vacuum circuit-breaker can be transported with the pallet, without the carton. Siemens Parts 9229 9860 176 0E 2013-08-22. Siemens Parts 9229 9860 176 0E 2013-08-22. Siemens Parts 9229 9860 176 0E 2013-08-22. Note Do not use the vacuum circuit-breaker if parts are broken, i.e. if you find cracks, flaking, bent metal parts, damaged plug-in contacts, tears or bare cables. Send it back in its original transport unit (see “Reusing the transport unit”, page 15). Siemens Parts 9229 9860 176 0E 2013-08-22. An operating cycle consists of one closing and one opening. The rating plate (51.) is attached to the mechanism box and readable through an opening (51.1) in the cover. Siemens Parts 9229 9860 176 0E 2013-08-22. The 1st shunt release Y1 can be operated using AC or DC voltage and is protected against overvoltage.In the event of intentional mechanical opening, the cut- out switch S7 interrupts the contacting. Fig. 35 Circuit-breaker tripping signal Siemens Parts 9229 9860 176 0E 2013-08-22. Vacuum circuit-breakers with electrical manual closing cannot be switched mechanically. Siemens Parts 9229 9860 176 0E 2013-08-22. This is also the case for vacuum circuit-breakers on switch gear trucks, in withdrawable sections or with disconnectors. Only now is it possible to undo the plug of the low-voltage interface. Note The spring charge release can also be combined with a mechanical locking device. Siemens Parts 9229 9860 176 0E 2013-08-22. This is also the case for vacuum circuit-breakers on switch gear trucks, in withdrawable sections or with disconnectors.http://myjobcontact.com/catalog/black-and-decker-steamer-manual-flavor-scenter.xml

Idle position Trip-free position Spring-dump position Interrogation or actuation component (min. Siemens Parts 9229 9860 176 0E 2013-08-22. The circuit diagrams for the vacuum circuit-breaker are compiled depending on your order. Mechanical manual closing and electrical closing “OPEN”. Mounting position The 3AH3 vacuum circuit-breaker can only be installed vertically (to the vacuum interrupter), as an indoor withdrawable section and as an indoor fixed installation. The busbars can be purchased from the Siemens Service Center. Busbar connection Adjust the busbars in such a way that, before fastening, they lie flat easily and fit the holes on the contact areas of the vacuum circuit-breaker. Ensure correct operating voltage. If the malfunctions or the damage cannot be remedied, contact a sales represent- ative or Siemens Service and, if necessary, send back the vacuum circuit- breaker. First closing operation If all functions have been checked and are ok, switch on high-voltage while observ- ing all of the safety regulations and operative requirements. Siemens Parts 9229 9860 176 0E 2013-08-22. Joints and bearings that cannot be disassembled must not be washed out with a detergent prior to work. Siemens Parts 9229 9860 176 0E 2013-08-22. Replace the interrupters after reaching the maximum permitted operating cycle number of 10 000 mechanical or electrical load setting changes (up to the rated cur- rent). Further information Contact your Siemens Service Center if you require further information. Installation operation maintenance E50001-F710-A238-V1-4A00. Answers for energy.Page 3 Table of contents. Introduction 4 -5Receiving, handling and storage 6. Page 4 IntroductionPage 5 Introduction.http://jzsxkyy.com/upload/upfile/files/20211009/1633715732.xml

Field service operation and warrantySiemens can provide competent, wellPage 9 Installation checks andPage 10 Installation checks andPage 11 Installation checks andNote: Secondary-disconnect terminals are Final mechanical inspections withoutFigure 8: Front view of type 38-3AH3 vacuum circuit breaker with front panel removedIntroduction. The type 38-3AH3 vacuum circuit breakerThe vacuum circuit breaker consists of twoFigure 15: Stored-energy operating mechanismWhen a tripping command is given, the If a make contact is used, the coil is.Trip-free functionality Opening. Refer to Figure 15: Stored-energy If the circuit breaker is to be tripped.Figure 17: Operating mechanism section diagram (drawout trip-free linkage shown) mechanism OPEN, closing spring DISCHARGEDFigure 18: Operating mechanism section diagram (drawout trip-free linkage shown) mechanism OPEN, closing spring DISCHARGEDFigure 19: Operating mechanism section diagram (drawout trip-free linkage shown) mechanism CLOSED, closing spring DISCHARGEDFigure 21: Operator sequential operation diagram. Closing ClosedRelay tripping may also be achieved byTrip-free interlock Circuit-breaker frame. Figure 32: Circuit-breaker interlocks and The frame of the type 38-3AH3 vacuum.Page 40 MaintenancePage 41 MaintenancePage 42 MaintenancePage 43 Maintenance. Removal from switchgear Checks of the primary power path. Prior to performing any inspection or The primary power. Page 44 MaintenancePage 45 MaintenanceKluber L32 or Kluber L32NPage 47 MaintenancePage 48 Maintenance. Figure 41: Typical vacuum interrupter contact curvePage 49 Maintenance. Electrical close and trip check Vacuum-interrupter mechanical checkPage 50 MaintenancePage 51 Maintenance. Table 3: High-potential test voltagesPage 52 MaintenanceFigure 46: Vacuum interrupter replacement illustrationPosition of torque wrench to avoid undue stressing. Page 58 OverhaulSub-assembly Item Inspect for. Primary power path Vacuum interrupter.

Page 60 Maintenance andTable 7: TroubleshootingClosing spring. Page 61 Maintenance andProblem Symptoms Possible causes and remedies. Nuisance or false close Electrical problem. Page 62 AppendixTable 10: Type 38-3AH3 vacuum circuit breaker weight in lbs (kg)1, 2, 3Page 64 AppendixPage 65 AppendixPage 66 AppendixEnergy Sector. Freyeslebenstrasse 1Siemens Energy, Inc. To get more targeted content, please make full-text search by clicking here.In the event of an opening command being given after a closing operation has been In the event of an opening command being given after a closing operation has been This circuit- The high-current and generator circuit-breakers 3AH37 and breaker is used for high load currents up to 6300 A and high 3AH38 meet the requirements of IEEE Std C37.013. short-circuit currents up to 72 kA. The pole assem- blies are fixed to the operating mechanism box via post Circuit-breaker structure insulators (3). The switching movement is transferred by means of operating rods (4) and levers. 1 Pole assembly 2 Operating mechanism box Switching medium 3 Post insulator 4 Operating rod The vacuum switching technology, proven and fully 5 Upper interrupter support developed for more than 30 years, serves as arc-quenching 6 Vacuum interrupter principle by using vacuum interrupters. 7 Lower interrupter support Pole assemblies R-HG11-191.tif The pole assemblies consist of the vacuum interrupters (6) Front view and the interrupter supports. The vacuum interrupters are air-insulated and freely accessible. This makes it possible to R-HG11-192.tif clean the insulating parts easily in adverse ambient condi- tions. The vacuum interrupter is mounted rigidly to the upper Open operating mechanism box interrupter support (5). The braces absorb the external forces resulting from switching operations and the contact pressure.

Operating mechanism box The whole operating mechanism with releases, auxiliary switches, indicators and actuating devices is accommodated in the operating mechanism box. The extent of the second- ary equipment depends on the case of application and offers a multiple variety of options in order to meet almost every requirement. Operating mechanism The operating mechanism is a stored-energy mechanism. The closing spring is charged either electrically or manually. It latches tight at the end of the charging process and serves as an energy store. The force is transmitted from the operat- ing mechanism to the pole assemblies via operating rods. To close the breaker, the closing spring can be unlatched either mechanically by means of the local “ON” pushbutton or electrically by remote control. The closing spring charges the opening or contact pressure springs as the breaker closes. The now discharged closing spring will be charged again automatically by the mechanism motor or manually. Then the operating sequence OPEN-CLOSE-OPEN is stored in the springs. The charging state of the closing spring can be checked electrically by means of a position switch. Trip-free mechanism 3AH3 vacuum circuit-breakers have a trip-free mechanism according to IEC 62271-100. In the event of an opening command being given after a closing operation has been initiated, the moving contacts return to the open position and remain there even if the closing command is sustained. This means that the contacts of the vacuum circuit-breakers are momentarily in the closed position, which is permissible according to IEC 62271-100.

Description 3AH3 Vacuum Circuit-Breakers Construction and mode of operation, standards, maintenance-free design Releases If constant CLOSE and OPEN commands are present at the A release is a device which transfers electrical commands from circuit-breaker at the same time, the circuit-breaker will return an external source, such as a control room, to the latching to the open position after closing. It remains in this position mechanism of the vacuum circuit-breaker so that it can be until a new CLOSE command is given. In this manner, opened or closed. For release combinations, refer to page 17.This ate tripping by electrical means. They are intended for con- is accomplished under local control with the cut-out switch nection to an external power supply (DC or AC voltage) but, that is connected in series with the NO contact.They are used when there is no external feeder or switchgear interlocks. In case of electrical inter- source of auxiliary power (e.g. a battery). Tripping is effected locking, the disconnector or its operating mechanism is by means of a protection relay (e.g. overcurrent-time protec- equipped with a magnetic lock-out mechanism. This mecha- tion) acting on the current-transformer operated release. On the other hand, the circuit-breaker is also energy store, and thus opening of the circuit-breaker, is controlled by the disconnector or its operating mechanism, so released.If the To interlock circuit-breaker trucks, withdrawable parts or voltage falls below a predetermined value, unlatching of the disconnectors according to the switch position, the circuit- release is enabled and the circuit-breaker is opened via the breakers can be equipped with a mechanical interlocking.

The deliberate tripping of the A sensor at the switchgear checks the position of the circuit- undervoltage release generally takes place via an NC contact in breaker and prevents the open circuit-breaker in a reliable the tripping circuit or via an NO contact by short-circuiting the way from being closed mechanically and electrically.Undervoltage releases can 3AH3 circuit-breakers conform to the following standards: also be connected to voltage transformers. In the standard version, 3AH3 vacuum circuit-breakers can be remote-closed electrically. They can also be closed locally by Maintenance-free design mechanical unlatching of the closing spring via pushbutton. In this version, the closing IEC 62271-1 (former IEC 60694) circuit of the circuit-breaker is controlled electrically by a pushbutton instead of the mechanical button. For enclosed switchgear the data of the switchgear manufacturer applies. The relevant data make up the 16-digit order and a descriptive order code follows. If several special versions number. The primary part covers the main electrical data of are required, the suffix “-Z” is listed only once. If a requested the circuit-breaker poles. The secondary part covers the aux- special version is not in the catalog and can therefore not be iliary devices which are necessary for operating and control- ordered via order code, it has to be identified with Y 9 9 after ling the vacuum circuit-breaker.Individual equipment versions, marked with 9 or Z in the 9th to 16th position, are explained more in detail by a 3-digit order code. Format: a n n Configuration example On the foldout page we offer a configuring aid. Here you can fill in the order number you have deter- In order to simplify the selection of the correct order number mined for your circuit-breaker.

For the selection of the secondary part, always the last example of the primary part was taken over and continued, so that at the end of the equipment selection (page 24) a completely configured circuit-breaker results as an example. These can be connected to free auxiliary switch contacts by the customer. Information in clear text. Information additionally in clear text. For other addi- For any query regarding spare parts, tional equipment, the required mounting parts are included subsequent deliveries, etc.To select the correct spare pole assemblies, please specify the type designation, serial number and year of manufacture of the circuit-breaker. All data is given on the rating plate. Vacuum pole assemblies and other spare parts must only be replaced by instructed personnel. Designation Remarks Order No. The curve shape beyond the parameters defined in IEC 62271-100 is based on 2 000 2 average experience data. The curve shape beyond the parameters defined in IEC 62271-100 is based on 2 000 2 average experience data. The curve shape beyond the parameters defined in IEC 62271-100 is based on 2 000 2 average experience data. The curve shape beyond the parameters defined in IEC 62271-100 is based on 2 000 2 average experience data. The curve shape beyond the parameters defined in IEC 62271-100 is based on 2 000 2 average experience data. Short-circuit breaking operations have been tested and proved under various conditions according to IEEE C37.013. As regards the electrical endurance, values ranging beyond this depend on the specific case of application. Short-circuit breaking operations have been tested and proved under various conditions according to IEEE C37.013. As regards the electrical endurance, values ranging beyond this depend on the specific case of application. For configuration of your 3AH3 vacuum circuit-breaker Please follow the steps for configuration and enter the order number in the configuration aid. All rights reserved.

If not stated otherwise on the individual pages of this catalog, we reserve the right to include modifications, especially regarding the stated values, dimensions and weights. Drawings are not binding. All product designations used are trademarks or product names of Siemens AG or other suppliers. If not stated otherwise, all dimensions in this catalog are given in mm. Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. You can download the paper by clicking the button above. Related Papers Catalog HA 40 2 Switchgear Type 8DJH for Secondary Distribution Systems By Neko Drugi IEEE Standard for Ratings and Requirements for AC High-Voltage Circuit Breakers with Rated Maximum Voltage Above 1000 V Sponsored by the Switchgear Committee By Haileyesus Kahsay Electrical Power Equipment Maintenance and Testing - 2nd Edition By DNPC DTN electrica; power By henry ijezie Betriebsanleitung Bestell-Nr.: 926 00800 174 E Metallgekapselte gasisolierte Schaltanlage 8DQ1 fur Bemessungs-Spannung 550 kV By natalia avalos READ PAPER Download pdf. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Report this Document Download Now save Save 3ah3.pdf For Later 4 views 0 0 upvotes 0 0 downvotes 3ah3.pdf Uploaded by Andi Gheorghe Description: Full description save Save 3ah3.pdf For Later 0 0 upvotes, Mark this document as useful 0 0 downvotes, Mark this document as not useful Embed Share Print Download Now Jump to Page You are on page 1 of 44 Search inside document Browse Books Site Directory Site Language: English Change Language English Change Language. Will cause death, serious injury or property damage. Always de-energize and ground the equipment before maintenance.

Read and understand this instruction manual before using equipment. Maintenance should be performed only by qualified personnel. 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, severe injury or equipment damage. FolloWill cause death, serious injury and property damage. Always de-energize and ground the equipment before maintenance. Maintenance should be performed only by qualified personnel. The use of unauthorized parts in the repair of the equipment or by tampering by unqualified personnel will result in dangerous conditions that will cause death, severe injury or equipment damage. Follow all safety instructions contained herein. IntroductiImproper lifting or hoisting can result in death, serious injury or property damage. Obtain the services of a qualified rigger prior to hoisting the circuit breaker to assure adequate safety margins in the hoisting equipment and procedures to avoid damage. Introduction 1. When t he shipment arrives, note whether the equipment is properly This portion of the instruction manual protected from the elements. Note the covers the receiving, handlWill cause death, serious injury and property damage. Read instruction manuals, observe safety instructions and use qualified personnel. Introduction Spring-discharge check (refer to Figure 1: Type 38-3AH3 vacuum circuit This section provides a description of the breaker front panel controls on page 8) inspections, checks and tests to be performed on the circuit breaker prior to Perform the spring-discCan result in death, serious injury or property damage. Observe all handling instructions in this instruction manual to prevent tipping or dropping of equipment.

Removal from cell in indoor switchgear Removal from cell in outdoor non-walk- if not on raised pad and Shelter-Clad in enclosures or for indoor switchgear outdoor switchgear installed on a raised pad After performing the spring discharge Removal of the circuit breaker from a non-Can result in death, serious injury or property damage. Do not transport a circuit breaker using a lift truck with the lift truck in the raised position. Figure 2: Type 38-3AH3 vacuum circuit breaker racking 5. Mo ve the circuit-breaker release latch Racking crank engagement procedure (on the floor of the cell near the right A crank for racking the circuit breaker is side of the circuit breaker) to the left provided as a standard accVerify the contacts Control power is required for automatic are in the OPEN position, and the spring-charging to take place.Flexible connectors provide secure electrical connections between the movable contacts of each vacuum interrupter and its bottom-primary disconnect. Phase barriers Figure 11: Type 38-3AH3 vacuum circuit breaker with inter-phase and outer-phase barriers installed on page 17 is a re. The principal steps are repeated here for information and guidance, but without the details of the preceding section. Depressing the trip pushbutton opens the circuit breaker prior to removal from the switchgear. Open the control-power disconnect device. Second, depress the black close pushbutton. Third, depress the red trip pushbutton again, and observe the spring condition indicator. It should read DISCHARGED. Each circuit breaker has four wheels and handles to allow one person to maneuver the unit on a level surface without assistance. These components are checked for cleanliness and condition. The vacuum interrupters are also checked for vacuum integrity. Use a dry lint-free cloth. For stubborn dirt, use a clean cloth saturated with isopropyl alcohol (except on a vacuum interrupter). Dry thoroughly using a dry lint-free cloth.

Each group is specifically designed to optimize space and material for the voltage class while retaining common features across the entire product line.With the 3ah3 vacuum interrupter, the poles are mounted directly onto the operator. A gearbox allows for quieter operation with reduced vibration. All key components are accessible from the front for easy servicing.Get Latest Price from the seller We shall strive hard to hold market leadership in our business activities and surpass customer expectation. With the ethical business standards and uncompromising values have resulted in the company being looked upon as reliable partner for customer, suppliers and employees. Get Best Deal I agree to the terms and privacy policy All rights reserved.