SEV 300 Series

Products

  • Air Cooled Series
  • Water Cooled Series

The SEV 300 Series of Shakers are matched with the DSA 25K and DSA 30K Series of Power Amplifiers. The Power Amplifier is assembled in a single 19-inch industrial rack of 36-unit height which houses the power transformer, high voltage rectification, power modules for the armature, field power supply, starters for cooling systems and oil pumps, along with all its control and protection assemblies.

Standard Features

  • Magnesium Alloy Casting based Armature Structure
  • Swivel mechanism in Bottom Cover
  • Rocker based Suspension
  • Trunnion mounted Shaker Body
  • IP-67 Non-Contact Inductive Sensors for:
  • Armature Position
  • Armature Under / Over Travel
  • Shaker Orientation
  • MEMS Sensor based Air Flow Detection
  • DC + Pneumatic based Auto-Centring of Armature
  • Shaker Body Isolation using Air Bellows
  • System Base Isolation using Rubber Pads
  • 7” Coloured TFT Touch Screen based Interface
  • 32-bit Microcontroller based Control Unit
  • Digital Gain Control of 0.1% Resolution
  • Digital Sine Generation of 0.1Hz Resolution
  • Display of Armature Voltage & Current in True RMS
  • Isolated Armature Voltage & Current BNC Output
  • Display of Field Voltage & Current
  • Galvanic Isolation of Analog Input & Output
  • Sensing and Display of Shaker Orientation
  • Auto Start, Stop, & Interlocking of Horizontal Slip Table
  • Multiple User Configurable Interlocks
  • Built-in Diagnostic Tool

Optional Features

  • Thermal Barrier for High / Low Temperature Operation
  • PC based Power Amplifier Remote
  • Automatic Trunnion for Shaker Body Rotation
  • Explosion Proof for Lithium-Ion Battery Testing
  • Field Power Regulation for higher Velocity
  • Long Stroke for higher Displacement
  • Pneumatic based Auto-Centring of Shaker Body
  • Low Frequency Operation with Displacement Sensor

System Specifications

Series SEV 300 – DSA 25K SEV 300 – DSA 30K

System Performance
Armature Diameter
300 mm
300 mm
Sine Force (peak)
2000 kgf (19.6 kN)
2500 kgf (24.5 kN)
Random Force (rms)
2000 kgf (19.6 kN)
2500 kgf (24.5 kN)
Shock Force (peak)
4000 kgf (39.2 kN)
5000 kgf (49.0 kN)
Acceleration (Sine)
90 g
100 g
Acceleration (Random)
70 grms
70 grms
Acceleration (Shock)
180 g
200 g
Velocity (peak)
1.8 m/s | 2.7 m/s*
1.8 m/s | 2.7 m/s*
Displacement (pk-pk)
51 mm | 76 mm**
51 mm | 76 mm**
Axial Resonance
2700 Hz ±5%
2700 Hz ±5%
Useful Frequency Range***
DC to 3000 Hz
DC to 3000 Hz

Shaker Characteristics
Moving Element Mass
22 kg
25 kg
Internal Load Capability
350 kg
350 kg
Suspension Axial Stiffness
< 1 kg/mm
< 1 kg/mm
Suspension Cross-Axial Stiffness
400 kg/mm
400 kg/mm
Stray Magnetic Field****
< 1 mT (10 gauss)
< 1 mT (10 gauss)
Cooling Air Flow
1500 cfm
1500 cfm
Compressed Air*****
6 bar (87 psi)
6 bar (87 psi)
Shaker Body Mass
3250 kg
3250 kg

Amplifier Characteristics
Power Output
25 kVA
30 kVA
Total Harmonic Distortion******
Typically, 0.5%
Typically, 0.5%
Input Impedance
> 10 kΩ
> 10 kΩ
Input Sensitivity
1 VRMS to 80 VRMS
1 VRMS to 80 VRMS
Signal-to-Noise Ratio
> 80 dB
> 80 dB
Power Efficiency******
> 92%
> 92%

Armature Insert Pattern
Metric: 1 at Centre, 4 at 141.4 mm PCD, 4 at 200 mm PCD, 4 at 250 mm PCD

Inch: 1 at Centre, 4 at 6” PCD, 4 at 8” PCD, 4 at 10” PCD

Notes:

  • *Peak velocity with reduced field power for Shock.
  • **Long stroke option.
  • ***Low frequency operation below 5Hz may require body locking or seismic foundation.
  • ****150 mm above armature head.
  • *****Dry compressed air to be provided by customer at installation site.
  • ******Measured on pure resistive load.
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