DTS / PDMS / Portable.

Contents

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DTS/CTM/DRS System

PD Monitoring System

Portable Diagnosis

Portable Diagnosis

DTS System

DTS System

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▶ DTS Principle

Use the optic cable for sensor of temperat re • Use the optic cable for sensor of temperature

• 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 • Distance decided by multiply the time of back scattering by speed of light • Determined the temperature by reflected power of the light

DTS / CTM / DRS System

DTS / CTM / DRS System

MPOWER

CTM : Conductor Temperature Monitoring DRS : Dynamic Rating System

DTS

Measure the distributed

DTS/CTM/DRS

DTS/CTM/DRS Flow chart

Measure the distributed temperature in whole length

Hottest temperature

DTS

DTS

Measure the distributed

Temperature

CTM

Calculate the conductor

Temperature

I

t th L

d C

t

CTM

DRS

CTM

_{Input the Load Current}

(from CT or SCADA)

Calculate Conductor Temperature

Estimate the Dynamic

Rating

DRS

Calculate the Dynamic

Temperature Rating

DRS

y

DTS / CTM / DRS System Diagram

DTS / CTM / DRS System Diagram

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Function

1. Real Time Conductor Monitoring (CTM)

2. Detection of Hotspot position 3 C l l t th D i R ti 3. Calculate the Dynamic Rating

(DRS)

4. Manage History of Temperature 5. Alarm History

DTS System

DTS System Hardware

Hardware

MPOWER

Item Descriptionp

Hub Connect the network between PCs and equipments

M it Di l th Cli t d C t l th t

Monitor Display the Client and Control the system

KVM S/W Manage the DTS/Server PC using a Keyboard, a Mouse _{and a Monitor}

DTS System

Keyboard/Mouse Keyboard , Mouse

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

DTS Measure the Distributed temperature

UPS Uninterruptible Power Supply

DTS System

DTS System Client (Example)

Client (Example)

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▶ 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

PD Monitoring System

PD Monitoring System

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▶ PDMS?

P ti l Di h M it i S t • Partial Discharge Monitoring System.

Real time Monitoring and management the Partial Discharge signal in cable ▶ Principle

Di i th bl b d t ti th l t i i l i bl i

• Diagnosis the cable by detecting 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 o t > Deterioration > Occ rrence the accident : limitation of contin o s inspection ca se of stead cable • Worn cable out -> Deterioration -> Occurrence the accident : limitation of continuous inspection cause of steady cable Deterioration

• Limitation of inspection whole cable

• Economic loss of occurrence of cable accident • 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

• Detect RealTime Signal

PD Monitoring System

PD Monitoring System Diagram

Diagram

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Power Switch Board

PDSB F HPF Filter Z PDMS RACK Z Z PDSB NMS PDU F Z Z Z F F F F UTP Cable(Cat.

Coaxial Cable(RG-213) _{L l P} ( Optic Cable 5e)

( ) _{Local Power}

Cable

PD Monitoring System

PD Monitoring System Hardware

Hardware

MPOWER

Item Description

Sensor Part

PD Sensor Detect the abnormal signal of cable

Impedance Impedance matching between sensor and equipment and

protect from the serge

HPF Filter Filter the noise from detected signal

Noise Sensor Detect the noise signal from cable outside

Local Part

PDU Control the detected cable signal

NMS Communicate with Local and Master Station

PDSB Power supply for Local equipment

Hub Connect the network with Server, Client PC and NMS

Monitor Display the HMI and control the System

Manage Client/Server PC using a Keyboard a mouse and

Main Station

KVM S/W Manage Client/Server PC using a Keyboard, a mouse and

a monitor

Keyboard/Mouse Keyboard , mouse

Client PC - HMI(Human Interface) S/W

- Control the PD equipment and display PD data

Server PC Analysis the PD patterns and save the data in database

NMS(Rack Type) - Transmit the digital data

- Receive the HFPD signal from Local to Master Station

FDF Fiber Distribution Frame

UPS

PD Monitoring System

PD Monitoring System Client(Example)

Client(Example)

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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

d i l h l i d h

4. Trend : Display the analysis PD data per Hour/Day/Month

Portable –

Over 154kV Cable Partial Discharge Diagnosis

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▶ 154kV Partial Discharge Diagnosis

Cable fail re hich is constr ction and design occ rs the Deterioration of Ins lator and ca ses the tro bles

• Cable failure which is construction 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 failure of cable construction and design

• Prevent the Deterioration of Insulation by Thermal/Electrical/mechanical stress

▶ Equipment of 154kV Partial Discharge Diagnosis and Measurement

▶ G l I ti

▶ 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

D t i th Sh th G di b f lt f C bl J k t L

Portable-Cable

Partial Discharge Diagnosis

(22.9kV Cable)

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(22.9kV Cable)

▶ 22.9kV Partial Discharge Diagnosis

Deterioration of High oltage eq ipment incl de cable is occ rred b sing long period and became the ca se of accident

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 ▶ 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

• Prevent the accident of the cable insulation

Portable-

Deterioration Phase/Panel Corona

Diagnosis (under 22.9kV Cable)

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Diagnosis (under 22.9kV Cable)

▶ Deterioration Phase Diagnosis

Detect the heat energ from orking electronic eq ipment sing special lens and displa distrib ted temperat re of each part

Detect the heat energy from working electronic equipment using special lens and display distributed temperature 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 ▶ 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 ▶ Diagnosis Equipment and Measurement