Pacific Microsystems
 
 

Advanced Total On-line Monitoring System For GIS

Advanced Total On-line Monitoring System for GIS
Overview
Monitoring and diagnosing via on-line when internal insulation of GIS has abnormal status, by detecting ultra-wide-bandwidth of electrowave signals which is generated by partial discharge with highly sensitive UHF sensors under live power.
 
 
 
 
Characteristics of the System
 
• Sensor with a high sensitivity to detect a partial discharge inside GIS
 -Internal type UHF sensor below 2pC (above -15dBm) External type UHF sensor below 5pC (above -24dBm)
- Reliability detection with  special produced shielding material
• Optimal noise elimination (4 Step Noise Elimination Solution)
- Noise elimination by installing a shielding band on Spacer
- Noise elimination using the Gating Method
- Noise separation through the Neural  Network analysis
• High-performance Data Acquisition Unit (AMoS Hybrid)
- Real-time algorithm operation (600MHz Dual DSP)
- Storing a large amount Data (Realtime-1 Omin, Event-5sec / CH)
- Stability with the dual-line  communication
• Operator-oriented Software Design (SOMoS)
- Max. 10 years Data Storage period
- Secured DB based on the operational environment (Defective cause, Neural Network)
- Diverse range of diagnostic tools (PRPS / PRPD / 20 / 3D)
- Automatic detection of fault and classification through the Neural Network analysis
• System Remote Control
- Multi-Channel (Base 8ch:Max 16ch)
- Remote Control function
- Automatic HIW and SIW recovery

 
 
Specifications
 
Specifications
Item
Internal type
External type
External type(Epoxy Injection)
Noise
Installation
GIS Inspection window
GIS Spacer (Open barrier type)
GIS Spacer (Metal-closed barier type)
Sensitivity
Below2pC
Below5pC
Below5pC
Detection Bandwidlh
0.5-1.5GHz
0.5-1.5 GHz
0.5-1.5 GHz
0.3-3.0 GHz
Output
>·15dBm
·22dBm
·24 dBm
 
 
AMoSHybrid
 

 

Specification

Power Supply

AC 90-240V, SO/60Hz

Minimum Detection Sianal

< - 60dBm (=0.001 ㎼)

Over-Voltage Protection

Internal Surge Protector

Input Channel

B Channel / Unit (Simultaneous, Continual diagnosis)

Communication

TCPIIP(IEEEB02.x)

Synchronizing signal

Selectable (Intemal and External synchronizing signal)

Processor

Dual 600MHz DSP

EMC

Industrial Emission Standard

Gating

Multi channel (User selectable)

 
 
Main Unit
 
Main Unit
Operating Software (SOMoS)
Specification
Measuring Melhod
Trend Mode
Event Mode
Real·lime Mode
Expression Method
Time chart (year, Month, Day Trend)
2D(PRPD, PRPS)
3D(PRPD, PRPS)
Data Scroll
Summary Report (Daily, Weekly, Monthly)
Analysis Method
Classifies defects by Neural Network
analysis
Stores reai-urne cata for Max. 10min
Trend Data pattem analysis
Automatic PO cause analysis
 
System Schematic
 
Advanced Total On-line Monitoring System for GIS
Advanced Total On-line Monitoring System for GIS
 
 
 
 
 
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