Quotation Are Invited For Testing Transformer 5Kv 1 A System Parameters Standard Terms Conditions1 Prices Should Be Ddp Delivery Duty Paid At Dewa Stores 2 Quotation To Be Submitted Only In Local Currency U A E Dirhams3 Dewa Standard Payment Terms Is 30 Days Credit From The Date Of Acceptance Of Material4 No Dewa Staff Or His Or Her Relatives Up To Third Degree Should Have Ownership Or Partnership In Your Company And Your Participation In Dewa Tenders Rfqs Should Not Constitute A Conflict Or Perceived Conflict Of Interest Testing Transformer 5 Kv 1 A System Parameters Rated Voltage 5 Kv Rated Current 1 A Rated Power 5 Kva Frequency 50 Hz Duty Cycle At Rated Power 1 Hour On 1 Hour Off Main Supply Power Circuit 2Pe Voltage 400 50 Hz Kva 5 Control Circ Uit 3Npe 230V Distortion Less Than 5 Digital Indications For Voltage Current Inter Connecting Power Cables Tank T Ype Transformer With Caster Wheels Oil Type Tap Selector In Order To Select The Voltage Tap On The Transformer Primary Comp Ensation Main Power Circuit Breaker With Indicators External Interlock Provision Zero Start Interlock Overload Circuit A Djustable From 10 To 110 Of Rated Current Indoor Installation Advanced Version Application Voltage Source For Lv Cable S Testing Test Transformer The Hv Transformer Generates The Hv Ac By Transforming The Primary Exciting Voltage To The Secondary H V Ac Output Voltage It Should Be Designed For Indoor Installation And Operation The Main Components Of The Transformer Are The Hv Winding And The Iron Core Enclosed By An Oil Filled Metal Tank With An Oil Air Hv Bushing Generally The Metal Tank Should Be G Rounded It Has A Low Core Induction To Guarantee A Sine Wave Shape Of The Output Voltage With Lower Than 5 Of Harmonic Distorti On In The System The Windings Are Short Circuit Proof The Excellent Cooling Performance Offers Hard Duty Cycles Including Cont Inuous Operation Hv Top Electrode Corona Rings The Hv Control Electrodes Are Required For The Reduction Of The Electrical Field O N The Hv Transformer Current Limiting Reactor The Current Limiting Reactor Is Used To Reduce The Short Circuit Current Of The Tes T System In Case Of Breakdown Of The Test Object The Protection Reactor Limits The Currents From The Mains For The Time Between Ign Ition Of The Switch And Switch Off Of The Circuit Breaker Digital Indications Digital Indications For Voltage Accuracy 0 8 Of Reading 0 2 Of Range Lsd Output Current Accuracy 0 8 Of Reading 0 2 Of Range Lsd Maximum Voltage Reached Indi Cators Stop Watch Duration And Dwell Timers In The Screen Advanced Voltage Raises Or Lower Adjustable Voltage Rise Adjus Table Overcurrent Trip Like 250 500 750 1000Ma Leakage Current Measurement Warning Circuit Factory Test The Objective Of The Factory Acceptance Test Is To Verify That The Ac Voltage Test System To Be Accepted Was Manufactured Properly And Complies With Th E Technical Specification Including The Relevant Standards In Particular Iec 60060 1 Checking The Scope Of Delivery For Completen Ess And Explanation Of The Test Reports Of The Main Components 2 Explanation Of The Main Components And The Assembly Of The Test System 3 Checking The Safety Features Earthing Devices Emergency Stop Safety Loop Overcurrent And Overvoltage Protection Etc 4 Breakdown Test With External Spark Gap In Air Comprising Of 3 Breakdowns At Approx Rated Voltage With Subsequent Voltage Test At Rated Voltage For 15 Min 5 Voltage Test At Rated Voltage For 15 Min In The Configuration Of The Test System For Maximum V Oltage Safety Measures Consisting Of Safety Support With Emergency Stop Button And Horn The Safety Column Consists Of Red An D Green Signal Light Emergency Stop Button Ground Stick Main Power Circuit Breaker On Regulator Cabinet Operator Key Start Zero Start Interlock Slow And Fast Acting Overload Protection Surge Protection On All Meters And Relays Overvoltage And Ove Rcurrent Controls External Interlock Protection Controls In Metal Cabinet With Provision For Separate Ground Lead Overload Cir Cuit Adjustable From 10 To 110 Of Rated Current Includes Indication With Reset Automatic Pneumatic Earthing System Of The Hv P Ole Of The Step Up Transformer In Case Of Breakdown Over Voltage Or Opening Of The Feeding Circuit To Put The Test Area In Safety C Ondition Calibration Certificate The Laboratory Performs The Calibration According To Iec 60060 2 By Comparison Measurement Agains T Measuring Standards Or Reference Measuring Standards Subsequent To The Calibration An Accredited Calibration Certificate Center In English Language Is Issued The Certificate Documents The Traceability To National Standards Which Realize The Units Of Measurem Ents According To The International System Of Units Si The Measurement Uncertainty Is Estimated According To The Iso Bipm Guide G Um Guide To The Expression Of Uncertainty In Measurement Technical Documents Operating Manuals Maintenance Manual Trouble S Houting Schematic Drawings Etc Are To Be Submitted In English Scope Of Contract Supply Including Shifting And Custom Clearance Installation Commissioning And Training Operating Spares Operation And Maintenance Spares Any Special Items Required For 5 Ye Ars Shall Be Proposed Warranty Warranty Is 36 Months After Installation Operating Conditions Ambient Temperature C 5 50 Max Relative Humidity 95
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