Disconnector Switch Load Break Switch 11kv

Product Name: Disconnector Switch Load Break Switch 11kv Model NO.: IST-12/400 Brand: Oei Power Certification: IEC IEEE Structure of Operating: Manual Common Model: Ist Run: Turn the Horizontal Series: Three Grounding: Single Ground Number of Poles: Three Pole Movement Mode: Horizontal Rotary Type Grounding Mode: Grounding Operation: Manual Installation: Outdoor High-voltage Structure: Three-column Disconnector Type: High-voltage 11: Kv 33: Kv Trademark: OEI Power Transport Package: Cartons Pallets Wooden Case Specification: IEC62271-102 Origin: China Nanyang HS Code: 8535309000 Product Description MV Outdoor Off-Load Isolator Switch(Alternating current disconnector)TECHNICAL SPECIFICATIonScopeType IST off-load switchs are suitable for use in tropical zone, with a maximum ambient temperature of approximately 40 degrees Centigrade and an average temperature of approximately 28 degrees Centigrade with high humidity and heavy rainfall. The preferred operational altitude is up to 1800 m above sea level.Electrical SystemType IST off-load isolator switch are designed for continuous operation on a 3-phase 3-wire 11, 15,22,24,27and 33,36kV,50/60Hz distribution system with the star-point of the source-point transformer earthed through an Arc Suppression Coil or Earthing Resistor.StandardsType IST off-load isolator switch are complied with relevant requirements of the following standards together with all current amendments;IEC62271-102:2003 :High-voltage alternating-current disconnectors and earthing switches IEC60129:1984 :Alternating current disconnectors and earth switches IEC 60265-1:1998 :High voltage switches - Part 1:Switches for rated voltage above 1kV and less than 52kV IEC 60694: 1996 :Common specifications for high-voltage switchgear and controlgear standards IEC 60815:1986 :Guide for the selection of insulators in respect of polluted conditions BS EN ISO 1461 :Hot dip galvanized coatings on fabricated iron and steel articles- Specifications and test methods4.0 Construction4.1 General4.1.1 Type IST off-load isolator switchs are the vertical/Horizontal mountingType for mounting on a single or H-pole structure for overheadlines or feeders from the energized sections. 4.1.2 Type IST off-load isolator switchs are compatible and ready forinstallation on tubular steel poles and spun concrete poles.4.1.3 The design are of an air insulated "rocking insulator"type with two fixed insulator posts and one movinginsulator post per phase. 4.1.4 All steel and iron parts shall be galvanized to protect from corrosion asper BS EN ISO 1461 4.1.5 Type IST off-load isolator switchs are equipped with a single operating mechanism and suitable coupling bars that shall operate all phases simultaneously and that independent operations of each pole,irrespective of the state of the other poles,is not permittedSPECIFICATIONSi. Rated Voltage 12kV 24KV 36KVii. Rated Continuous Current Carrying Capacity Not Less Than 400A Up to 630Aiii. Rated Short-Time Withstand Current (rms) 12KV 24KV 36KV >=20KA / 3 sec >=25KA/ 3 seciv. Lightning Impulse WithstandVoltage (peak)-To earth and between poles min max 12KV 24KV 36KV 60KV 75KV 95KV 125KV 145KV 170KV -Across the isolating distance min max 70KV 85KV 110KV 145KV 165KV 195KVv. Power Frequency Withstand Voltage(r.m.s) -To earth and between poles 12KV 24KV 36KV 28KV 50KV 70KV -Across the isolating distance 32KV 60KV 80KVvi. Average Ambient Temperature (Maximum) 28ºC (40ºC)i. Humidity Range 0-100%ii. Preferred Altitude Requirement Up to 1,800miii. InsulatorsTotal Creepage Distance (mm) Min Max 12KV 24KV 36KV 192 384 576 465 600 9001.1 Operation1.1.1 Type IST off-load isolator switchs are designed to provide a smooth,Lightweight action requiring minimum maintenance.1.1.2 The complete operating mechanism parts are sufficientlyInsolated from live parts, and grounded for the safety of the operator.The operating mechanism shall be of robust,adjustable design with padlock facility in either the "OPEN" and "CLOSE" positions.1.1.3 The complete operating mechanism are comed complete with anOperating handle and shall be designed for steady manual operationFrom ground level.1.1.4 The insulation for the operating mechanism handle are sufficientFor the safety of the operations and preferably incorporated with anAnti-slip grip.1.1.5 The vertical drive rod is suitable length and shall be providedWith facilities to extend or reduce the length. Suitable couplings and operating rod guides shall be supplied with each operating mechanism. 1.1.6 If possible, it can be designed that the operating mechanism handleuse for both LEFT and RIGHT hand operations. The directionOf the operations are clearly indicated on the operating mechanism.1.1.7 Type IST off-load isolator switchs are designed to prevent unwantedOperations such that:1.1.7.1 Type IST off-load isolator switchs OPEN or CLOSE position areremain constant despite:a. forces arising from gravity,vibration or reasonable shockb. accidental touching of the connecting rods or operatingdevicesc. electromagnetic forces1.1.1.1 Type IST off-load isolator switchs have provisions to preventUnauthorized operations1.1.2 The OPEN or CLOSE position of the Off-Load Isolator Switch areEasy to see from ground level by:1.1.2.1 having a visible gap or isolating distance1.1.2.2 having a reliable indicating device of the position of the movablecontacts.1.1.3 Type IST off-load isolator switchs have adequate mechanicalStrength on its terminal to withstand the total forces,includingWind loading and electromagnetic forces, related to its applicationAnd rating,without reduction of its reliability or current carrying onceIt has been installed vertically on single or H-pole structure.1.2 Grounding An earth terminal stud with a minimum size M12 shall be provided for the Grounding of the operating mechanism, the terminal is marked with the "earth" symbol.1.3 InsulatorThe materials for the insulator is silicon rubber or Porcelain, Other composite material Such as EPDM and porcelain can be Choosed.1.4 Stationary and Moving Contacts1.4.1 The main current carrying contacts are designed to ensure goodElectrical conductivity and to minimize pitting during operation. TheDesign shall also ensure that a constant pressure is applied uniformlyBetween the moving and fixed contacts.1.4.2 The contacts are easily replaced without the need for re-alignmentOr adjustment.1.4.3 The preferred material for the contact surfaces that are designed toCarry the current is silver tipped or other suitable conducting materialWith a minimum thickness of 15 μm.1.1.1 The design and position of the main contacts is avoid the accumulation of dirt.4.6 Flexible ConnectionsElectrical continuity to the moving contact is by means of a flexible connection that is corrosion resistant and preferably able to withstand at least up to 1,000-2000 fault-free operations. The flexible connection is insulated or laminated to prevent encroachment from animals or vegetations.4.7 Terminals4.7.1 The clamping and main terminal surfaces are compatible with both copper and aluminum conductor.4.7.2 The terminals are designed such that they are capable of accepting multiple ranges of compression connectors.4.7.3 The conductor terminals are suitable for stranded copper or aluminum cables.2.0 MarkingsType IST off-load isolator switchs is clearly marked as follows:i. Manufacturer's name or trade mark, type and identificationii. Rated Voltage, Continuous Current, and Frequencyiii. Short-Time Withstand Current(r.m.s)iv. Relevant Standardsv. The acronym of Customer'svi. Customer's Contact Number6.0 Inspection and Testing6.1 General Requirements6.1.1 We ensure that the product is inspected and tested at all stages of manufacturing in accordance with the requirements as stipulated in this specification,6.1.2 We allow the representative of Customer or its appointed Quality Agents access to all production facilities necessary for the manufacturer of this product, at all reasonable times. The manufacturer is responsible to maintain all Quality and Test records for a minimum period of five (5) years.Customer and / or its appointed agents reserve the right to inspect these records as and when deem necessary.6.1.1 During such inspection, any corrective actions necessary are complied with within the scope of this specification.6.1.2 The tests are carried out in accordance to the standards as stipulated in Clause 3.0 and any additional requirement as stated in this specification.6.2 Type Test6.2.1 Type IST off-load isolator switchs had passed the type tests in accordance to IEC62271-102, IEC 60265-1 (or equivalent), IEC 60694 (or equivalent) and other related amendments,a. Dielectric test per Clause IEC 62271-102-2001 Ed 1.0 2001-12b. Measurement of resistance of the main circuit as per Clause IEC 62271-1-2007c. Temperature rise tests as per Clause IEC 62271-102-2001d. Short-time withstand current and peak withstand current tests as per Clause IEC 62271-102e. Mechanical operation tests as per Clause 6.102 IEC 60265-1 Type Tests for items a,b,c&e as mentioned in Clause 7.2.1 above are conducted at an accredited independent laboratory and6.2.2 Type Tests for items d as mentioned in Clause 7.2.1 above is conducted at an STL or STLA laboratory CPRI INDIA6.3 Routine TestsRoutine tests are carried out by the manufacturer on all products in the finished state or, where appropriate, during the manufacturing processes. The routine test that are made on Type IST off-load isolator switchs are:-i. Dielectric test per Clause IEC 62271-102ii. Measurement of resistance of the main circuit IEC 62271-102iii. Design and visual check as per IEC 62271-102iv. Mechanical operation tests per Clause IEC 62271-1027.0 Quality ControlWe are arleady set up and implement a good quality management system. This system shall be inspect/audited by The customer appointed Quality Audit Agent before the commencement of any new contract and subsequently at agreed regular interval to ascertain the proper implementation of the quality management system.