Ningbo Hyuan Power Industry Co., Ltd.  

Product Name: 33kv/72.5kv/110kv/132kv Outdoor Dead Tank Sf6 Insulating Circuit Breaker Model NO.: LW24 Trademark: HEMG Transport Package: Carton with Wooden Specification: 33KV/72.5KV/123KV/132KV/145KV Origin: China Product Description 1.Brief Introduction33KV/72/5KV/110KV/132KV Outdoor H.V. A.C. Dead Tank SF6 gas circuit breaker is anew kind of circuit breaker with self-blast interrupter and spring operating mechanism,he latest achieve-arc extinguishing principle of gas-blast pressure and breaking-current self-adapting are employed, by which most of energy required for breaking rated short-circuit current are acquired from arc itself. Therefore, the demand for operating energy is reduced significantly. The interrupter is placed inside ametal enclosure. The circuit breaker can be mechani-cally three-phase gange-operated. Both remote electrical control and local manual control can be realized. Type CT20-II spring operating mechanism, provided with the product, is akind of mechanism with low operating power, minimum maintenance work needed and high reliability.2.Environmental Condition2.1.Altitude above sea level 4500m2.2.Relative humanity monthly 90%2.3.Max .wind velocity 35m/s2.4.Pollution class IV class2.5.Ambient temperature -35 ~40 (Product of 72.5kV may be operated at -40 )2.6.Max .temperature difference daily: 25K2.7.Earthquake withstand density 9degree2.8.Icing thickness: 10mm2.9.Max. radiance from sun: 1000 W/m2Note: when product is used under the condition out of above range, user and manufacturer shall consult to /confirm/i.1. Thanks to excellent electrical field design and its perfect coordination with motion characteristic, breaking capacitive current may be up to 630A and guaranteed breaking current of 1200A(70000Kva) without re-strike.2. Gas-flowing characteristics is so appropriate that its breaking inductive current has no overvoltage at chopped current.3. Arc-extinguishing principle of gas-blast pressure and breaking current self-adapting.When breaking rated short-circuit current and any other fault current, there are reliable breaking performance and abundant arcing time differential through employing arc-extinguishing principle of gas-blast pressure and breaking current self-adapting.4. Excellent Insulation Performance.There is wide range of internal insulation margin. For 40.5kV product, which is used at decreased voltage,the insulation level is corresponding to that of 72.5kV.5. Long-time flow of short-time withstand current.The product may be flowed current of 40kV/31.5kV for 4seconds.6. Breaking current of differential phase earthing may be up to 34.8kA/25.2kA.7. High performance of Earthquake withstand.Due to the optimizing and coordinative design on structure frame, the product has ahigh performance of seismic-withstand with earthquake density of 9degree.8. The product is entirely provided with latest advanced type CT20 spring mechanism. So it has low noise level, high mechanical reliability and mechanical three-phase gang-operation, and smaller space occupied, compared to that of normal single-phase circuit breaker when three-gang operating, specially suitable for city networks and country networks retrofit projects.9. After all routines test at factory, each circuit breaker is packed completely, with 0.05MPa SF6 gas filled. Maintenance works needed at site are minimized, which only need checking SF6 gas gauge and applying lubricant.10. The frame is such designed that the products are specially suitable for retrofit projects of replacement of bulk-oil circuit breaker, such as type DW8-35 DW13-35 and DW2-35,etc bulk oil circuit breakers, which do not need to reconstruct foundation. Intermediate frame for type LW24-40.5 SF6 gas dead-tank circuit breaker is specially designed so that the product can be installed directly on original foundation of bulk-oil circuit breaker. Thus the work for retrofit engineering is reduced greatly and project period becomes short.TECHNICAL GUARANTEED SWITCHES TRIPOLAR 69 KVITEMPARAMETERUNITYSPECIFICATIONSREQUIREDPROPOSAL1Name ManufacturerSpecify XD/HEMG2Country FactorySpecify CHINA4E-mail contact representative:Specifytailichen5ModelSpecifyLw246Warranty periodmonths24247StandardsIEC-62271-100IEC62271-100dead tankDEAD TANK8Type9Number of poles3310Installation SiteOutdoorOUTDOORelevenInstallation heightm2800m280012nominal frequency of the systemHz606013Nominal system voltagekv696914Maximum operating voltagekv72.572.515Test Voltage 60 Hz., Applied for 1minutekv185 or more18516Test voltage wave impulse with 1.2 /50 µs. (BIL or LIWL)kv450 or higher45017Downtimecycles3318Symmetrical interrupting capabilityKA252519Steady streamTO1200125020Means of extinctionSF6SF621Voltage control and drive operationvdc125125VDC22Operating voltage charging motor springvdc125125VDC2. 3Closing coil1124Trip coil2225Voltage heatersVac240/220/208220V26Power resistance heatersWSpecify2X100W27Type operating mechanismMotor-SpringMOTRO-SPRINGO28O -0.3 s- CO -3 min. -COO-0.3S-CO-3MIN-COSequence of Operation29External manual release mechanismYesYES30Full weight breaker structurelesskgSpecify155031Weight structurekgSpecify15032Pressure limit for operationPSISpecify0.4MPA33Gas volume per polem3Specify5KG3. 4Maximum loss of gas per yearm3Specify<=1%35terminal connectorsAl cable range 4/0 to 477 MCM.YES36Maximum deliverydays180180DAY37The offeror must include catalogsYESYES38Closing coil replacementunity3YES39Opening coil replacementunity3YES40Motor replacement spring loadunity3YESEquipment, accessories minimal SF6 gas filling41Coupling for gas tankCoupler circuit breakerInput and output manometersStopcock, input and outputHoses and other necessary for filling SF6Gas bottle for fillingYESdocumentATION SUPPLIED BY THE PROVIDER SPECIFIED BY THE DISTRIBUTOR.characteristicsSolicited specificationOfferedspecificationRules(*):Fromthe International Electrotechnical Commission (IEC), particularly IEC 62271-100 and ANSI/IEEEC57.13yesANSI (American National Standards Institute)C 3704 -1979 Rating structure; C3706 -1979 Preferredratings; C3709 -1979 Test procedure; C37010 -1979 Aplication guide; C37011 -1979 Application guide for recorry transient voltage; C37012 -1979 Capacitance current switching.yesCircuit breakers:Suitable for automatic reclosing tripolar Of high speedyesCapacitySF6 gas replenishment during operation, enough gas for initial filling and additional reserve of 10%.yessuitable devicesPressure measurement with alarm contacts and lock cases of pressure loss, in addition to the safety valve.yesRight to workweatheryesinsulatorsInsulators /bushings (bushings) should beporcelain or polymerporcelainMechanismOperationFor local electrical operationor remotely. Selection should be through alocal device provided with aremovable key.yesThey must be drivenengine, opening and closing by spring. The mechanism should be contained in acabinet weatherproof, dust and corrosion, IP55 according to IEC-60529yesMust beFree shot, according to IEC-62271-100, with anti-pumping device.yesHecommand must be the tripolar type. The breaker poles shall be suitably interconnected to ensure asimultaneous and tripolar positively secure operation.yesmust be provideda locking device that locks the circuit breaker closing when no sufficient accumulated or if the density of SF6 is under the permissible level energy, the circuit breaker must bloquearse-yesonce an opening or closing operation, it must always be completed without interruption and independent of external media.yesThe engines load springs must be fed continuously and /or alternating current.yesIt must exista visual indicator of the position of the breaker contacts, which will be installed externally. the word "OPEN" on abackground of green and use the word "CLOSED"ona background of red.yesCabinet Command and ControlBeweatherproof, dust and corrosion and must be protected against accidental contact and be tight dropwise with degree of protection IP55 according to IEC- 60529yesFor the tripolar electric driveLocal must be provided at least buttons for "opening" and "closing" and the selector "local-remote", located so that allow the operator to maneuver from the ground level. The LOCAL-REMOTE selectors must have two additional type auxiliary contacts "a" and "b" available for remote signalingyesIt must be provideda counter of the number of operations of the circuit breaker. Removable plates must be provided in the bottom of the cabinets for inlet ducts, with enough space for the connection of external wiringyesEverybodycomponents cabinets must be connected to terminal blocks designed for conductor cross-section up to 10 mm2. They are left, at least 10 free terminals for customer use.YESInternal wiringcabinets will be made with aminimum wire section 3.31 mm2(12 AWG) insulated 600 V, and feature fire resistance, moisture and mildew.YESCabinets shall be providedan anti-condensate resistance with thermostat, hygrometer and circuit breaker, alamp for indoor lighting circuit breaker and an electrical outlet. All these devices are suitable to operate at 120 VAC.yesterminalsterminals circuit breakers must be copper-coated silver (alternatively be tinned), with perforations according to NEMA standards.yesForeach terminal asuitable connector tube driver or characteristics that determine the ED's be supplied promptlyyesCircuit breakerswill be supplied with terminal connectors grounding suitable for copper conductor wiring 2AWG to 4/0 AWG, located at opposite ends diagonallyyesaccessoriessupportsgalvanized steel mounting concrete foundations, if required, with boltsyesplatesidentification weatherproof and corrosion, in Castilian language, containing at least the information specified in IEC-62271-100yesBlockauxiliary contacts 10-pole with contact convertibles normally open to normally closed. The ability of the contacts 10 will be minimal 48/125 Ato VDC /AC C. Local media opening and closing the circuit breaker without control voltageyesProtectionmotor overload operation, where the case.yesMediato lock by lock operation.yesDevice gas filling and bottle SF6yesDispositivesgas control:- Pressure gauge with contactsalarm and lock- ValveoverpressureyesIn casebeing standardized design manufacturer, it is desirable to have means to enable connection of arecorder run of contacts.yesPrototype testinga) Seismic tests:Seismic tests for Circuit Breakers Dead Tank SF6 gas insulated required.The test consistsin applying vibrations forced through ahorizontal movement exerted parallel to the main horizontal axes of the equipment. an acceleration of 0.33 gsoil spectrum frequency response between 1and 10 Hz, with amaximum duration of the earthquake will take 3minutes.b) Mechanical tests (IEC 62271-100, clause 10.2.102.2).c) Tests temperature rise (IEC 62271-100, Clause 6.5).d) Dielectric tests (IEC-62271-100, clause6.2).e) Tests short circuit switch terminals (IEC 62271-100, clauses 6102-6106).f) Tests short line failure (IEC 62271-100, clause 6.109).g) Tests discordance switching phases (IEC 62271-100, clause 6110, IEC-267).h) Tests supportable short current (IEC 62271-100, Clause 6.6).i) Tests Interrupt line current load (IEC 62271-100, Clause 6.111.5.1).j) Tests interruption of small inductive currents (IEC 62271-100, Clause 4108).yesinformationto be included in the offercertified copiesof Prototype test reports (of listings) made similar to those offered Circuit Breakersyesschemesshowing the main dimensions of the circuit breaker and the general location of its componentsyesdescriptive bulletinsand catalogs breakers, operation mechanisms, control cabinets and other important elementsyesSectional viewsshowing the design details of the equipment and its components.yesdetailsof any particular element provided with the circuit breakers.yesCertificateAuthorized Distributor, issued by the manufactureryesshort instructionsinstallation, operation and maintenance of circuit breakers, operating mechanisms and their elements.yes