Audited Supplier
LW24
HEMG
Carton with Wooden
33KV/72.5KV/123KV/132KV/145KV
China
Product Description
1.Brief Introduction
33KV/72/5KV/110KV/132
KV Outdoor H.V. A.C. Dead Tank SF6 gas circuit breaker is a new 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 a metal 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 a kind of mechanism with low operating power, minimum maintenance work needed and high reliability.
2.Environmental Condition
2.1.Altitude above sea level 4500m
2.2.Relative humanity monthly 90%
2.3.Max .wind velocity 35m/s
2.4.Pollution class IV class
2.5.Ambient temperature -35 ~40 (Product of 72.5kV may be operated at -40 )
2.6.Max .temperature difference daily: 25K
2.7.Earthquake withstand density 9 degree
2.8.Icing thickness: 10mm
2.9.Max. radiance from sun: 1000 W/m2
Note: when product is used under the condition out of above range, user and manufacturer shall consult to confirm.
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 4 seconds.
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 a high performance of seismic-withstand with earthquake density of 9 degree.
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 KV
DOCUMENTATION SUPPLIED BY THE PROVIDER SPECIFIED BY THE DISTRIBUTOR.
33KV/72/5KV/110KV/132
KV Outdoor H.V. A.C. Dead Tank SF6 gas circuit breaker is a new 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 a metal 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 a kind of mechanism with low operating power, minimum maintenance work needed and high reliability.
2.Environmental Condition
2.1.Altitude above sea level 4500m
2.2.Relative humanity monthly 90%
2.3.Max .wind velocity 35m/s
2.4.Pollution class IV class
2.5.Ambient temperature -35 ~40 (Product of 72.5kV may be operated at -40 )
2.6.Max .temperature difference daily: 25K
2.7.Earthquake withstand density 9 degree
2.8.Icing thickness: 10mm
2.9.Max. radiance from sun: 1000 W/m2
Note: when product is used under the condition out of above range, user and manufacturer shall consult to confirm.
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 4 seconds.
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 a high performance of seismic-withstand with earthquake density of 9 degree.
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 KV
| ITEM | PARAMETER | UNITY | SPECIFICATIONS | ||||
| REQUIRED | PROPOSAL | ||||||
| 1 | Name Manufacturer | Specify | XD/HEMG | ||||
| 2 | Country Factory | Specify | CHINA | ||||
| 4 | E-mail contact representative: | Specify | tailichen | ||||
| 5 | Model | Specify | Lw24 | ||||
| 6 | Warranty period | months | 24 | 24 | |||
| 7 | Standards | IEC-62271-100 | IEC62271-100 | ||||
| dead tank | DEAD TANK | ||||||
| 8 | Type | ||||||
| 9 | Number of poles | 3 | 3 | ||||
| 10 | Installation Site | Outdoor | OUTDOOR | ||||
| eleven | Installation height | m | 2800m | 2800 | |||
| 12 | nominal frequency of the system | Hz | 60 | 60 | |||
| 13 | Nominal system voltage | kv | 69 | 69 | |||
| 14 | Maximum operating voltage | kv | 72.5 | 72.5 | |||
| 15 | Test Voltage 60 Hz., Applied for 1 minute | kv | 185 or more | 185 | |||
| 16 | Test voltage wave impulse with 1.2 / 50 µs. (BIL or LIWL) | ||||||
| kv | 450 or higher | 450 | |||||
| 17 | Downtime | cycles | 3 | 3 | |||
| 18 | Symmetrical interrupting capability | KA | 25 | 25 | |||
| 19 | Steady stream | TO | 1200 | 1250 | |||
| 20 | Means of extinction | SF6 | SF6 | ||||
| 21 | Voltage control and drive operation | vdc | 125 | 125VDC | |||
| 22 | Operating voltage charging motor spring | vdc | 125 | 125VDC | |||
| 2. 3 | Closing coil | 1 | 1 | ||||
| 24 | Trip coil | 2 | 2 | ||||
| 25 | Voltage heaters | Vac | 240/220/208 | 220V | |||
| 26 | Power resistance heaters | W | Specify | 2X100W | |||
| 27 | Type operating mechanism | Motor-Spring | MOTRO-SPRINGO | ||||
| 28 | O - 0.3 s - CO - 3 min. - CO | O-0.3S-CO-3MIN-CO | |||||
| Sequence of Operation | |||||||
| 29 | External manual release mechanism | Yes | YES | ||||
| 30 | Full weight breaker structureless | kg | Specify | 1550 | |||
| 31 | Weight structure | kg | Specify | 150 | |||
| 32 | Pressure limit for operation | PSI | Specify | 0.4MPA | |||
| 33 | Gas volume per pole | m3 | Specify | 5KG | |||
| 3. 4 | Maximum loss of gas per year | m3 | Specify | <=1% | |||
| 35 | terminal connectors | Al cable range 4/0 to 477 MCM. | |||||
| YES | |||||||
| 36 | Maximum delivery | days | 180 | 180DAY | |||
| 37 | The offeror must include catalogs | YES | YES | ||||
| 38 | Closing coil replacement | unity | 3 | YES | |||
| 39 | Opening coil replacement | unity | 3 | YES | |||
| 40 | Motor replacement spring load | unity | 3 | YES | |||
| Equipment, accessories minimal SF6 gas filling | |||||||
| 41 | Coupling for gas tank Coupler circuit breaker Input and output manometers Stopcock, input and output Hoses and other necessary for filling SF6 Gas bottle for filling | YES | |||||
DOCUMENTATION SUPPLIED BY THE PROVIDER SPECIFIED BY THE DISTRIBUTOR.
| characteristics | Solicited specification | Offered specification |
| Rules(*): | Fromthe International Electrotechnical Commission (IEC), particularly IEC 62271-100 and ANSI /IEEEC57.13 | yes |
| ANSI (American National Standards Institute)C 3704 - 1979 Rating structure; C 3706 - 1979 Preferred ratings; C 3709 - 1979 Test procedure; C 37010 - 1979 Aplication guide; C 37011 - 1979 Application guide for recorry transient voltage; C 37012 - 1979 Capacitance current switching. | yes | |
| Circuit breakers: | Suitable for automatic reclosing tripolar Of high speed | yes |
| CapacitySF6 gas replenishment during operation, enough gas for initial filling and additional reserve of 10%. | yes | |
| suitable devicesPressure measurement with alarm contacts and lock cases of pressure loss, in addition to the safety valve. | yes | |
| Right to workweather | yes | |
| insulators | Insulators / bushings (bushings) should beporcelain or polymer | porcelain |
| MechanismOperation | For local electrical operationor remotely. Selection should be through a local device provided with a removable key. | yes |
| They must be drivenengine, opening and closing by spring. The mechanism should be contained in a cabinet weatherproof, dust and corrosion, IP55 according to IEC-60529 | yes | |
| Must beFree shot, according to IEC-62271-100, with anti-pumping device. | yes | |
| Hecommand must be the tripolar type. The breaker poles shall be suitably interconnected to ensure a simultaneous and tripolar positively secure operation. | yes | |
| must 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- | yes | |
| Once an opening or closing operation, it must always be completed without interruption and independent of external media. | yes | |
| The engines load springs must be fed continuously and / or alternating current. | yes | |
| It must exista visual indicator of the position of the breaker contacts, which will be installed externally. the word "OPEN" on a background of green and use the word "CLOSED"ona background of red. | yes | |
| Cabinet Command and Control | Beweatherproof, dust and corrosion and must be protected against accidental contact and be tight dropwise with degree of protection IP55 according to IEC- 60529 | yes |
| For 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 signaling | yes | |
| It 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 wiring | yes | |
| Everybodycomponents 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. | YES | |
| Internal wiringcabinets will be made with a minimum wire section 3.31 mm2(12 AWG) insulated 600 V, and feature fire resistance, moisture and mildew. | YES | |
| Cabinets shall be providedan anti-condensate resistance with thermostat, hygrometer and circuit breaker, a lamp for indoor lighting circuit breaker and an electrical outlet. All these devices are suitable to operate at 120 VAC. | yes | |
| terminals | terminals circuit breakers must be copper-coated silver (alternatively be tinned), with perforations according to NEMA standards. | yes |
| Foreach terminal a suitable connector tube driver or characteristics that determine the ED's be supplied promptly | yes | |
| Circuit breakerswill be supplied with terminal connectors grounding suitable for copper conductor wiring 2 AWG to 4/0 AWG, located at opposite ends diagonally | yes | |
| accessories | supportsgalvanized steel mounting concrete foundations, if required, with bolts | yes |
| platesidentification weatherproof and corrosion, in Castilian language, containing at least the information specified in IEC-62271-100 | yes | |
| Blockauxiliary contacts 10-pole with contact convertibles normally open to normally closed. The ability of the contacts 10 will be minimal 48/125 A to V DC / AC C. Local media opening and closing the circuit breaker without control voltage | yes | |
| Protectionmotor overload operation, where the case. | yes | |
| Mediato lock by lock operation. | yes | |
| Device gas filling and bottle SF6 | yes | |
| Dispositivesgas control: - Pressure gauge with contactsalarm and lock - Valveoverpressure | yes | |
| In casebeing standardized design manufacturer, it is desirable to have means to enable connection of a recorder run of contacts. | yes | |
| Prototype testing | a) Seismic tests: Seismic tests for Circuit Breakers Dead Tank SF6 gas insulated required. The test consistsin applying vibrations forced through a horizontal movement exerted parallel to the main horizontal axes of the equipment. an acceleration of 0.33 g soil spectrum frequency response between 1 and 10 Hz, with a maximum duration of the earthquake will take 3 minutes. 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). | yes |
| informationto be included in the offer | certified copiesof Prototype test reports (of listings) made similar to those offered Circuit Breakers | yes |
| schemesshowing the main dimensions of the circuit breaker and the general location of its components | yes | |
| descriptive bulletinsand catalogs breakers, operation mechanisms, control cabinets and other important elements | yes | |
| Sectional viewsshowing the design details of the equipment and its components. | yes | |
| detailsof any particular element provided with the circuit breakers. | yes | |
| CertificateAuthorized Distributor, issued by the manufacturer | yes | |
| short instructionsinstallation, operation and maintenance of circuit breakers, operating mechanisms and their elements. | yes |
