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Sensors for Monitoring Hydroelectric Power Plants

Detect Turbine Generator Faults with Vibration Monitoring Instrumentation

The core of a typical hydroelectric power plant is the turbine. As water runs through the penstock on its way from the reservoir to the outflow, it circulates past the turbine runner. The water flow causes the runner blades to rotate, thereby turning the turbine shaft. The turbine shaft subsequently turns the generator shaft, creating electricity.

Hydro turbines rotate slowly, typically at an operating speed of 75 to 1000 rpm. Turbines are often required to operate at partial load in order to meet fluctuating electricity demands. This part load operation can increase the potential for water pressure pulsations, turbulence and cavitation. Runner components are prone to fatigue and damage because of the errant vibration caused by these fluctuations.

In addition to runner components, turbine and generator shafts and bearings are also prone to vibration. Those vibrations can be faults including unbalance, misalignment, bearing fatigue and/or overload and insufficient bearing lubrication.

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Model Number

Model:602D01

  • Sensitivity: (±10%)100 mV/g
  • Sensitivity: (±10%)10.2 mV/(m/s²)
  • Frequency Range: (±3dB)30 to 480000 cpm
  • Frequency Range: (±3dB)0.5 to 8000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Measurement Range: ±50 g
  • Measurement Range: ±490 m/s²
  • Weight: 2.61 oz
  • Weight: 74.0 gm
$155.00 USD
(Pricing valid in US only)
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Model Number

Model:603C01

  • Sensitivity: (±10%)100 mV/g
  • Sensitivity: (±10%)10.2 mV/(m/s²)
  • Frequency Range: (±3dB)30 to 600000 cpm
  • Frequency Range: (±3dB)0.5 to 10000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Measurement Range: ±50 g
  • Measurement Range: ±490 m/s²
  • Weight: 1.8 oz
  • Weight: 51 gm
$97.00 USD
(Pricing valid in US only)
 
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Model Number

Model:622B01

  • Sensitivity: (±5%)100 mV/g
  • Sensitivity: (±5%)10.2 mV/(m/s²)
  • Frequency Range: (±3dB)12 to 900000 cpm
  • Frequency Range: (±3dB)0.2 to 15000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Measurement Range: ±50 g
  • Measurement Range: ±490 m/s²
  • Weight: 3.3 oz
  • Weight: 94 gm
$225.00 USD
(Pricing valid in US only)
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Model Number

Model:VO622B01

  • Sensitivity: (±10%)100 mV/in/sec
  • Sensitivity: (±10%)3937 mV/m/sec
  • Frequency Range: (±3dB)180 to 540000 cpm
  • Frequency Range: (±3dB)3 to 9000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Measurement Range: ±50 in/sec
  • Measurement Range: ±1.27 m/sec
  • Weight: 3.3 oz
  • Weight: 94 gm
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Model Number

Model:VO625B01

  • Sensitivity: (±10%)100 mV/in/sec
  • Sensitivity: (±10%)3937 mV/m/sec
  • Frequency Range: (±3dB)90 to 360000 cpm
  • Frequency Range: (±3dB)1.5 to 6000 Hz
  • Sensing Element: Ceramic
  • Sensing Element: Ceramic
  • Measurement Range: ±50 in/sec
  • Measurement Range: ±1.27 m/s²
  • Weight: 5.6 oz
  • Weight: 159 gm
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Model Number

Model:639A91

  • Sensitivity: (±10%)100 mV/g
  • Sensitivity: (±10%)10.2 mV/(m/s²)
  • Measurement Range: ±50 g pk
  • Measurement Range: ±491 m/s² pk
  • Broadband Resolution: (1 to 10000 Hz).3 mg
  • Broadband Resolution: (1 to 10000 Hz)3.0 mm/s2 rms
  • Frequency Range: (±5%)1.5 to 5500 Hz
  • Frequency Range: (±5%)1.5 to 5500 Hz
  • Electrical Connector: 4-Pin, M12
  • Electrical Connector: 4-Pin, M12
$1295.00 USD
(Pricing valid in US only)
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Model Number

Model:682C03

  • Output Signal: (DC Vibration)4 to 20 mA
  • Output Signal: (DC Vibration)4 to 20 mA
  • Frequency Range: (Acceleration)(-3dB)180 to 600000 cpm
  • Frequency Range: (Acceleration)(-3dB)3 to 10k Hz
  • DC Power: 23 to 25 VDC
  • DC Power: 23 to 25 VDC
$445.00 USD
(Pricing valid in US only)
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Model Number

Model:682C05

  • Output Range: 4 to 20 mA
  • Output Range: 4 to 20 mA
  • Frequency Response: (Overall Vibration)(±3dB)10 to 1k Hz
  • Frequency Response: (Overall Vibration)(±3dB)10 to 1k Hz
  • Supply Voltage: 20 to 28 VDC
  • Supply Voltage: 20 to 28 VDC
$695.00 USD
(Pricing valid in US only)
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Model Number

Model:699A06

  • Frequency Range: (operating, 100 gram payload)7 to 10000 Hz
  • Frequency Range: (operating, 100 gram payload)420 to 600000 cpm
  • Maximum Load: 800 gm
  • Maximum Load: 800 gm
  • Maximum Amplitude: (Acc 100 Hz no payload)20 g pk
  • Maximum Amplitude: (Acc 100 Hz no payload)196 m/s^2 pk
  • Maximum Amplitude: (Vel 100 Hz no payload)15 in/sec pk
  • Maximum Amplitude: (Vel 100 Hz no payload)380 mm/s pk
  • Maximum Amplitude: (Displ 100 Hz no payload)50 mils pk-pk
  • Maximum Amplitude: (Displ 100 Hz no payload)1.27 mm pk-pk
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Model Number

Model:699A07

  • Frequency Range: (operating, 100 gram payload)7 to 10000 Hz
  • Frequency Range: (operating, 100 gram payload)420 to 600000 cpm
  • Maximum Load: 800 gm
  • Maximum Load: 800 gm
  • Maximum Amplitude: (Acc 100 Hz no payload)20 g pk
  • Maximum Amplitude: (Acc 100 Hz no payload)196 m/s^2 pk
  • Maximum Amplitude: (Vel 100 Hz no payload)15 in/sec pk
  • Maximum Amplitude: (Vel 100 Hz no payload)380 mm/s pk
  • Maximum Amplitude: (Displ 100 Hz no payload)50 mils pk-pk
  • Maximum Amplitude: (Displ 100 Hz no payload)1.27 mm pk-pk
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