Bus Stab Assembly

4160 Switch

Bus Stab Assembly

C-Phase Load Side

Object Temp: 189^oC

Reference Temp: 55^oC

Temperature Rise: 134^oC

3000A Switchboard

Bus To Fuse

B-Phase / All Line Sides

Object Temp: 151^oC

Reference Temp: 35^oC

Temperature Rise: 116^oC

Line/Lug Connection/Bushing

Platform TF Bank / 500kVA TF

Line/Lug Connection/Bushing

Object Temp: 224^oC

Reference Temp: 16^oC

Temperature Rise: 208^oC

Line/Lug Connection/Bracket

Object Temp: 221^oC

Reference Temp: 31^oC

Temperature Rise: 190^oC

Switch Assembly

Object Temp: 202^oC

Reference Temp: 38^oC

Temperature Rise: 164^oC

B & C-Phase Line Side

Object Temp: 273^oC

Reference Temp: 126^oC

Temperature Rise: 147^oC

#8 / A-Phase Line Side

Object Temp: 231^oC

Reference Temp: 31^oC

Temperature Rise: 200^oC

Switch Assembly

Object Temp: 370^oC

Reference Temp: 95^oC

Temperature Rise: 275^oC

Capacitor Bank

Bus/Lug Connection

B-Phase

Object Temp: 341^oC

Reference Temp: 28^oC

Temperature Rise: 313^oC

350A Breaker- 480V Panel

Line/Lug Connection/Internal

A-Phase Load Side

Object Temp: 354^oC

Reference Temp: 37^oC

Temperature Rise: 317^oC

150kVA Transformer

Line/Lug/Crimp Connection

X2 / B-Phase

Object Temp: 456^oC

Reference Temp: 31^oC

Temperature Rise: 425^oC

225A Westinghouse Breaker Panel

Bus/Bus Adapter/Internal

#18 / A-Phase Line Side

Object Temp: 425^oC

Reference Temp: 52^oC

Temperature Rise: 373^oC

     "Thermography can be used to identify and analyze thermal anomalies for condition monitoring of machines. These thermal anomalies are usually caused by such mechanisms as operation, improper lubrication, misalignment, worn components or mechanical loading anomalies.

     Infrared thermography (IRT) is based on measuring the distribution of radiant thermal energy (heat) emitted from a target surface and converting this to a surface temperature map or thermogram. Thermal energy is present with the operation of all machines. It can be in the form of: friction losses within machines, energy losses within machines, as a characteristic of the process media, or any combination thereof. As a result, temperature can be a key parameter for monitoring the performance of machines, the condition of machines and the diagnostics of machine problems. Temperature is also one of the key causes and symptoms of lubricant degradation and loss of lubrication function within a machine.

      IRT is an ideal technology to investigate thermal anomalies on machines because it provides complete thermal images of a machine, or a machine component, with no physical attachments (nonintrusive), requires little setup and provides the results in a short time. As such, thermography techniques can be used as part of a condition-monitoring process when such a process is implemented in accordance with ISO 17359."

                       - As Stated By The March-April 2004 Issue of Machinery Lubrication

Conveyor Bearing At 15H.P. Motor

Bearing

Motor Side

Object Temp: 159^oC

Reference Temp: 35^oC

Temperature Rise: 124^oC

20hp Motor P003- Magnet Spray Pump

Pulley/Belts

Object Temp: 109^oC

Reference Temp: 38^oC

Temperature Rise: 71^oC

Infrared testing proves to be an efficient and effective method of catching potential trouble spots in bus work. Overheating at bus joints can easily be identified and problems with individual bus switches can also be pinpointed.

The following images represent some of the various types of problems located in bus duct.

Bus Joint

Bus Duct- GI Bus #1

Object Temp: 29^oC

Reference Temp: 22^oC

Temperature Rise: 7^oC

Bus/Bar Connection

FDP- 118B-SG / Main Bus Duct Connections

Object Temp: 42^oC

Reference Temp: 25^oC

Temperature Rise: 17^oC

Bus Joint

GI Bus #1 Section II

Object Temp: 27^oC

Reference Temp: 22^oC

Temperature Rise: 5^oC

Switch Assembly/Bus Stab

Switch Assembly/Bus Stab

Temperature Rise: 36^oC

Fuse Clip/Switch Assembly/Bus Stab

Fuse Clip/Switch Assembly/Bus Stab

Object Temp: 128^oC

Reference Temp: 76^oC

Temperature Rise: 52^oC