产品详情
简单介绍：
The Power Transformer Guard (PTG) is designed to monitor oil-filled power transformers in order to extract a signature of its condition. Without such Condition Monitoring (CM) ability it is difficult to know when your transformer needs to be serviced or replaced .
详情介绍：
The PTG measures vibration in the frequency range of 20-1,000 Hz to display the various components of the vibration. The largest vibration comes from windings/coils whose shape is lost as a consequence of excessive vibration. An excessive amplitude leads to play in the coils. Existing play allows large amplitude vibration, which in turn reinforces the play. It is a vicious cycle if left unchecked. At worse, a total breakdown of your transformer will happen resulting in catastrophic failure.
Adopting PT Guard is the key to a robust system. It provides long term monitoring of your transformer behavior and the ability to react before catastrophic failure leads to increased expenses.
Due to the strong magnetic environment and high temperature, regular sensors cannot be located close to the winding as they are monitoring internal vibration behavior from outside the tank walls. This is a problem as undesirable signals (e.g. from internal echoing) will mix with the desired signal and will be significantly dampened.
• Broadband sensor working from 20 Hz to 1,000 Hz.
• 8-channel system for both temperature and vibration.
• Channel #1 is dedicated to temperature measurement winding top.
• Calibrated to industry standard: 10 microns per 100 mV at 159.2 Hz.
• Vibration signature enables identifying troublemakers for the whole range between 20 Hz and 1,000 Hz.
• Immune to EMI and high voltages.
• Fiber optic making the VibroFibre spouses Telcordia standard.
• Signal Conditioner possesses an analog electrical output for direct measurement.
• A SCADA device can be linked to the Signal Conditioner as it also outputs RS-485 Modbus signal.
• The signal conditioner allows portability and thus capacity of evaluating a whole fleet of motors, further increasing the cost effectiveness of the system.
• An User Interface is provided for both on-line evaluation (PT EYE) and off-line trending (PT SAFE).
• The PT Guard system can be extended to other types of assets and conditions.
Adopting PT Guard is the key to a robust system. It provides long term monitoring of your transformer behavior and the ability to react before catastrophic failure leads to increased expenses.
Due to the strong magnetic environment and high temperature, regular sensors cannot be located close to the winding as they are monitoring internal vibration behavior from outside the tank walls. This is a problem as undesirable signals (e.g. from internal echoing) will mix with the desired signal and will be significantly dampened.
PTG sensors are 2 mm thin, resistant to high temperature, immune to EMI and high voltages and are designed to be installed inside the tank between the winding turns and submerged in the cooling oil.
• Broadband sensor working from 20 Hz to 1,000 Hz.
• 8-channel system for both temperature and vibration.
• Channel #1 is dedicated to temperature measurement winding top.
• Calibrated to industry standard: 10 microns per 100 mV at 159.2 Hz.
• Vibration signature enables identifying troublemakers for the whole range between 20 Hz and 1,000 Hz.
• Immune to EMI and high voltages.
• Fiber optic making the VibroFibre spouses Telcordia standard.
• Signal Conditioner possesses an analog electrical output for direct measurement.
• A SCADA device can be linked to the Signal Conditioner as it also outputs RS-485 Modbus signal.
• The signal conditioner allows portability and thus capacity of evaluating a whole fleet of motors, further increasing the cost effectiveness of the system.
• An User Interface is provided for both on-line evaluation (PT EYE) and off-line trending (PT SAFE).
• The PT Guard system can be extended to other types of assets and conditions.
