Dymond™ AC Dynamometers and Systems

Fifty horsepower AC dynometer in an adjustable height test stand50hp trunnion mounted, liquid-cooled Dymond AC Dynamometer and Drive System with 0-2200 RPM constant torque range and 2200-6000 RPM constant HP range, in an adjustable-height test stand

Small or Large Engine & Motor Applications

DyneSystems provides you with a fully integrated, heavy-duty AC dynamometer system package, including transformer, drive, dyno, and control box. Whether you are testing small electric tools, large electric motors, off-road diesel engines, marine diesel engines or powertrain components, the Dymond Series is the strongest solution to your toughest problems.

  • Low inertia
  • Fast response for transient testing of engines and transmissions
  • Bumpless transfer from absorbing to motoring
  • IGBT Line Regeneration for "clean" regenerated power (meets IEEE standards)
  • Accurate and repeatable dynamometer control
  • Seamless test-cell integration
  • Data acquisition and throttle control available
  • Test fuel measurement systems, emission gas analyzers, combustion analysis systems, and more
600 Horsepower, Liquid Cooled AC Dynamometer600hp Foot-Mounted, Liquid Cooled AC Dynamometer with 0-450 RPM constant torque range, 450-900 RPM constant HP Range, and 900-2500 RPM Decreasing HP Range (400 HP)

Regenerative

Both DyneSystems AC and DC Dynamometer systems safely put power back onto the grid, thus reducing net cost.

List of Models

Choose High Torque or High Speed models from the following chart. The chart is your starting point, showing 15 to 1600 HP models. Higher voltage and horsepower models are available upon request. From the basic model you choose, DyneSystems will custom engineer your AC Dynamometer precisely for your present and anticipated applications.

 

High Torque AC Dynamometers

High Speed AC Dynamometers
HP Cooling Type Constant Torque RangeConstant HP RangeDecreasing HP RangeMax. Torque Constant Torque RangeConstant HP RangeDecreasing HP RangeMax. Torque
 
15Blower 11753525500067.05 345069001800022.8
15Liquid 8752625400090.03 175035001200045.0
 
20Blower 11753525500089.40 345069001800030.4
20Liquid 87526254000120.05 175035001080060.0
 
25Blower 117535255000111.74 345069001800038.1
25Liquid 87526254000150.06 175035001080075.0
 
30Blower 117535255000134.09 345069001500045.7
30Liquid 87526254000180.0717503500900090.0
 
40Blower 117535255000178.79 345069001500060.9
40Liquid 87526254000240.09 175035009000120.0
 
50Blower 117535255000223.49 345069001500076.1
50Liquid 87526254000300.11 175035009000150.1
 
75Blower 117535255000335.23 3450690013800114.2
75Liquid 87526254000450.17 175035007500225.1
 
100Blower 117535255000446.98 3450690013800152.2
100Liquid 87526254000600.23 175035007000300.1
 
125Blower 117535255000558.72 3450690013800190.3
125Liquid 87526254000750.29 175035007000375.1
 
150Blower 117535255000670.47 3450690013800228.3
150Liquid 87526254000900.34 175035007000450.2
 
200Blower 117535255000893.96 3450690013800304.5
200Liquid 875262540001200.46 175035007000600.2
 
250Blower 1175352550001117.45 3450690013800380.6
250Liquid 875262540001500.57 175035007000750.3
 
300Blower 1175352550001340.943450690013800456.7
300Liquid 875262540001800.69 175035007000900.3
 
400Blower 1175352550001787.91 3450690010800608.9
400Liquid 875262540002400.91 1750350070001200.5
 
550Blower 1175352550002458.38 3450690010800837.3
550Liquid 875262540003301.26 1750350070001650.6
 
650Blower 1175352550002905.36 345069009000989.5
650Liquid 875262540003901.49 1750350070001950.7
 
850Blower 1175352550003799.32 3450690090001294.0
850Liquid 875262540005101.94 1750350070002551.0
 
1000Blower 1175352550004469.79 3450690090001522.3
1000Liquid 875262540006002.29 1750350066003001.1
 
1250Blower 1175352550005587.23 3450690090001902.9
1250Liquid 875262540007502.86 1750350060003751.4
 
1600Blower 117535255007151.66 1750350072002435.7
1600Liquid 875262540009603.66 1750350060004801.8
 

AC Interface Box - An Important Safety Feature

The AC Interface Box is an important safety feature that was specifically designed for Dyne Systems AC dynamometer control systems. The purpose of this box is to monitor the condition of all elements of the system and trip the system out on a fault.

AC Interface Box monitors elements of a DyneSystems AC Dynamometer system

It provides:

  • Visual indication of faults and conditions, such as temperatures
  • A centralized mounting location for required operator controls, power supplies, interface boards, relays, conduit connections, etc.
  • Dry contact outputs for faults (for connection to customer's supervisory system)
  • A dry contact output which opens on any fault - typically connected to shut down the engine or device under test when a fault occurs
  • Inputs for a remote reset push button (supplied by the customer)

The safety system will shut down on any of the following faults:

Inside of AC Interface Box
  • Front or rear bearing over-temp or open thermocouple (type K)
  • Loss of blower pressure while dyne is running (if applicable)
  • Motor winding over-temp
  • Over speed or Under speed fault from dynamometer control
  • Emergency stop
  • Fault from AC PAU (Power Amplifier Unit or AC Vector Control)

The box includes the following operator control elements:

  • Pilot lights to indicate all faults
  • LED displays of bearing temperatures (plus coolant if a water-cooled dynamometer)
  • Fault reset push-button

For More Information

  • View and print product brochures in PDF format
  • Request a no-obligation quote with our online quote form
  • Contact our sales department at the email address or phone number shown at the bottom of this page

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