acoustic emission wireless sensors applications on …€¦ · · 2009-02-27arturo nunez....
TRANSCRIPT
2© 2009 Substation Reliability Services and Products, COE. All rights reserved.
Acoustic Emission (AE) Wireless Sensor Nodes
• Multiple AE Wireless Sensor Nodes interfacing to a single USB Base Station module plugged into a computer or notebook computer.
• Very Low Power Design, short term battery operation or permanent wired power, battery pack or Solar panels
• Mesh Network or repeater for larger systems
• Interfaces into AEwin™ software
AE wireless Sensor Node USB Wireless Basestation
Receiver
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Monitoring 765 kV Current transformers
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Monitoring of 6 – 765 kV Current transformers
PROBLEM:• These CT’s already have gas monitors
installed on them• Gas monitors have been damaged due
to switching operations• Need to monitor for PD activity
SOLUTION:• Install Acoustic Sensors powered
through a Solar Panel• The battery design was challenging due
to the very low amount of sun received on this area of the country
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INSTALLATION
• 1st Generation of wireless sensors Installed in December 2007 on 3 CTs
• Upgrade to second generation and installation on three more CTs in August 2008
NEW FEATURES:• Power consumption reduced 75%• “Sleeping” mode when no data is received• Capability of having up to 8 inputs on
each node (current, temperature, pressure, gas monitors, etc.)
• Battery level measured and displayed on software
• Solar controller prevents battery from draining completely
6© 2009 Substation Reliability Services and Products, COE. All rights reserved.
Installation Layout
Control
Room
170.5 m
71 m
93 m
Phase B, SENSOR 3
Phase C, SENSOR 1
Antenna
Phase C, SENSOR 6 113 m
Phase B, SENSOR 2
62 m
83 m
Phase C, SENSOR 5
Phase A, SENSOR 4
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Site Installation photographs
BASE STATIONINSIDE
CONTROLROOM
AE CHANNEL 1
AE CHANNEL 2
AE CHANNEL 3
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AE CHANNEL 6AE CHANNEL 4 AE CHANNEL 5
Site Installation photographs
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DATA
CT REPLACEDPOSSIBLE PD ACTIVITY
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BATTERY OPERATIONC
harg
e le
vel
durin
g th
e da
y
Cha
rge
leve
l du
ring
the
nigh
tB
atte
ry S
elf-
heal
ing
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Monitoring Instrument transformers and breakers
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MESH CAPABLE AE WIRELESS SENSOR
• Wireless Mesh Network AE nodes• No outlets for power supply• No solar panels• Interchangeable Battery pack
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N1N2N3
N6
N5
N4
N7N12
N8
N9N10N11
Breakers
Potential
Transformer
CODEBase Station
Switch Yard
INSTALLATIONWIRELESS NODES LOCATION
Distances from Base Station to Wireless Node
Node 1: 51’ Node 7: 68’
Node 2: 53’ Node 8: 123’
Node 3: 55’ Node 9: 93’
Node 4: 36’ Node 10: 95’
Node 5: 39’ Node 11: 97’
Node 6: 42’ Node 12: 83’
14© 2009 Substation Reliability Services and Products, COE. All rights reserved.
AE Sensor
AE Wireless NodeBattery
AE WIRELESS NODE – BATTERY OPERATED
POTENTIAL TRANSFORMER
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CODEAE Sensor
AE Wireless node
Battery
INSTALLATION
BREAKERS POTENTIAL TRANSFORMERS
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INSTALLATIONWIRELESS BASE STATION
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PD ACTIVITY DETECTED WITH AE ON 1 POTENTIAL TRANSFORMER
PD ACTIVITY
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Monitoring of Gas Insulated Substations
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AE Mesh Monitoring @ 400 kV GIS
BASESTATION
AE wireless Sensor Node USB Wireless Basestation
Receiver
20© 2009 Substation Reliability Services and Products, COE. All rights reserved.
Conclusion
• AE wireless sensors are been successfully used for monitoring power equipment
• Faster installation of sensors reduce the cost of cabling installation significantly
• Easy to relocate within same substation to monitor other equipment as needed
• Mesh Networking Capabilities allow monitoring equipment at very large distances
• All AE wireless sensors have the capability of adding additional sensors allowing multiple parameters been monitored with one device
21© 2009 Substation Reliability Services and Products, COE. All rights reserved.
Arturo NunezSubstation Reliability Services and Products Manager
ASNT AE Level III(609) 716-4162
www.mistrasgroup.com/substations/
QUESTIONS?