DTS / PDMS / Portable.
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1 DTS / PDMS / Portable
2 Contents DTS/CTM/DRS System PD Monitoring System Portable Diagnosis 2
3 DTS System DTS Principle Use the optic cable for sensor of temperaturere Sensing of temperature is able to whole route of optic fiber. Able to measure and distribute the temperature by 1 m in whole route of optic fiber DTS Operating Method Use the OTDR(Optical Time Domain Reflectometry) Principle Distance decided by multiply the time of back scattering by speed of light Determined the temperature by reflected power of the light Use the Raman scattering among the back-scattering 3
4 DTS / CTM / DRS System DTS/CTM/DRS DTS : Distributed Temperature Sensing CTM : Conductor Temperature Monitoring DRS : Dynamic Rating System DTS/CTM/DRS Flow chart DTS Measure the distributed temperature in whole length Hottest temperature DTS Measure the distributed Temperature CTM Calculate the conductor Temperature Input the Load Current (from CT or SCADA) CTM DRS Calculate Conductor Temperature Estimate the Dynamic Rating DRS Calculate the Dynamic Rating(Estimate) Temperature Rating DRS y 4
5 DTS / CTM / DRS System Diagram Function 1. Real Time Conductor Monitoring (CTM) 2. Detection of Hotspot position 3. Calculate l the Dynamic Rating (DRS) 4. Manage History of Temperature 5. Alarm History 5
6 DTS System Hardware Item Description Hub Connect the network between PCs and equipments Monitor Display the Client and Control the system KVM S/W Manage the DTS/Server PC using a Keyboard, a Mouse and a Monitor Keyboard/Mouse Keyboard, Mouse DTS System DTS PC - HMI(Human Interface) S/W - Display the DTS Data and Control the DTS unit Server PC Analysis and save the DTS data in Database DTS Measure the Distributed temperature UPS Uninterruptible Power Supply FDF Fiber Distribution Frame 6
7 DTS System Client (Example) Function 1. Main HMI : DTS System Main View (Temperature each T/L, Alarm on/off, etc.) 2. Real Time Temp : Display Temperature Real time Graph 3. Temp. Log : Search historical temperature Data 4. Trend : Display data per Hour/Day/Month 5. Setting : Set Alarm Threshold 7
8 PD Monitoring System PDMS? Partial Discharge Monitoring i System. Real time Monitoring and management the Partial Discharge signal in cable Principle Diagnosis i the cable by detecting ti the electronic signal in worn cable using sensor Description Accident Insulation of power cable is occurred by continuous cable Deterioration more than momentary cable Deterioration. Worn cable out -> Deterioration -> Occurrence the accident : limitation of continuous o inspection cause of steady cable Deterioration Limitation of inspection whole cable Economic loss of occurrence of cable accident Necessity of On-Line PD Monitoring PDMS System detects the symptom of power cable in advance of accident for managing the failure of system efficiently. Detect PD Monitoring Intension of prevent of decreasing cable failure Management of economic effect by Real time monitoring Automation of Monitoring Monitoring Cable Detect RealTime Signal Cable Partial Discharge Diagnosis 8
9 PD Monitoring System Diagram Z F HFCT Sensor Impedance HPF Filter PDU NMS PD Detection Unit Network Manage System Optic Cable(SM, 4C) PDSB Power Switch Board Power(FR-CV, 220V) PDMS RACK Z PDSB NMS PDU Z Z Z F F F F Coaxial Cable(RG-213) Local Power Cable UTP Cable(Cat. 5e) Optic Cable Main Power(220V) 9
10 PD Monitoring System Hardware Sensor Part Local Part Main Station Item PD Sensor Impedance HPF Filter Noise Sensor PDU NMS PDSB Hub Monitor KVM S/W Keyboard/Mouse Client PC Description Detect the abnormal signal of cable Impedance matching between sensor and equipment and protect from the serge Filter the noise from detected signal Detect the noise signal from cable outside Control the detected cable signal Communicate with Local and Master Station Power supply for Local equipment Connect the network with Server, Client PC and NMS Display the HMI and control the System Manage Client/Server PC using a Keyboard, a mouse and a monitor Keyboard, mouse - HMI(Human Interface) S/W - Control the PD equipment and display PD data Server PC NMS(Rack Type) FDF UPS Analysis the PD patterns and save the data in database - Transmit the digital data - Receive the HFPD signal from Local to Master Station Fiber Distribution Frame Uninterruptible Power Supply UPS 10
11 PD Monitoring System Client(Example) Function 1. Main HMI : Main view On-Line PD Monitoring System 2. Event : Analysis the PD Data each channel 3. Log : Display the information of PD occurrence, user and abnormal equipment 4. Trend : Display the analysis PD data per Hour/Day/Month 5. Settings : Set the name of PD point and alarm threshold and register the administer ID/PW 11
12 Portable Over 154kV Cable Partial Discharge Diagnosis 154kV Partial Discharge Diagnosis Cable failure which is construction ction and design occurs the Deterioration of Insulator and causes the troubles Insulation Diagnosis for prevent the accident 154kV Partial Discharge Diagnosis Effect Prevent the failure of cable construction and design Prevent the Deterioration of Insulation by Thermal/Electrical/mechanical stress Equipment of 154kV Partial Discharge Diagnosis and Measurement General Inspection Inspection of Sheath Circulating Current and Measurement of SVL(Surge Voltage Limit)Deterioration - Judge propriety of the Sheath Circulating Current in Grounding System Between Ground and Sheath - Determine the Sheath Grouding by fault of fcable Jacket tlayer 12
13 Portable-Cable Partial Discharge Diagnosis (22.9kV Cable) 22.9kV Partial Discharge Diagnosis Deterioration of High voltage equipment include cable is occurred by using long period and became the cause of accident Prevent the accident by detecting the abnormal signs in order to prevent the economic loss and deterioration of reliability cause of repairing long time of the Insulation accident Effect of 22.9kV Partial Discharge Diagnosis Determine the problem of the cable insulator and joint part Periodic Diagnosis management to determine the timing to replace cable Prevent the accident of the cable insulation 22.9kV Partial Discharge Diagnosis Equipment and Measurement 13
14 Portable-Deterioration Phase/Panel Corona Diagnosis (under 22.9kV Cable) Deterioration Phase Diagnosis Detect the heat energy from working electronic equipment using special lens and display distributed ted temperature re of each part. Effect of Diagnosis Detection of the overload and contact inferiority of electronic equipment and etc. Prevention of Fire due to abnormal heat of electronic equipment Panel Corona Diagnosis Diagnose the corona sign of the mold-type electronic equipment which is high probability of accidents due to insulation weak using contactless equipment Diagnosis Effect Diagnose Mold-type equipment (PT, CT, ZCT etc.), Cable Head and contact point of main cable (GCB, VCB etc.) Diagnose the joint bay not able to use contact diagnosis Diagnosis Equipment and Measurement Thermo-graphic Diagnosis Thermo-Graphic Diagnosis result Panel Corona Diagnosis 14
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