Universal Drive and Brake Unit HM 365

Universal Drive and Brake Unit

Type: HM 365
Name: Universal Drive and Brake Unit
Technical Description

  HM 365 is the base module of the GUNT-FEMLine, on which students can carry out experiments on fluid machinery. This equipment series covers five training courses on water and oil pumps, turbines, and systems engineering and engine technologies.
  The complete experimental setup includes the base module HM 365, the fluid energy machine to be investigated and, where needed, a supply unit or a test stand. The fluid energy machine under investigation is connected to the HM 365 base module via a belt drive. Fasteners connect the HM 365 and the trainer to the accessories.
  The main function of HM 365 is to provide the drive or brake power necessary to study the selected driving or driven machine. This power is generated by an air-cooled asynchronous motor with a frequency converter. The asynchronous motor operates as a generator or a motor, as required. As a generator, it acts as a brake on the fluid energy machine, in this case motors or turbines, and diverts the energy. As a motor, it powers the fluid energy machine under investigation, e.g. pumps or compressors.
  The energy that is created during the braking process in generator mode is converted into heat at a load resistor. The drive and/or brake torque can be adjusted precisely. It is measured with a force sensor. For this purpose, the asynchronous motor is suspended as a pendulum. The motor can be moved to tension the V-belt.
  HM 365 is fitted with digital displays for speed and torque. Data between the base module and the accessories are exchanged through a data cable. The measured values can be transmitted simultaneously via USB directly to a PC. Each of the individual accessories is delivered with specific evaluation software.

Learning Objectives / Experiments
Asynchronous motor as a drive or brake unit in connection with one of the accessories
- torque measurement
- speed measurement

* Base module of the GUNT-FEMLine1
* Asynchronous motor with frequency converter and

  precise adjustment of the drive and brake torque1
* Connection of HM 365 and the driving or

  driven machine with a V-belt drive1
* Setting up a complete test stand with various


Available accessories
CT 159 -- Modular Test Stand for Single Cylinder Engines, 2,2kW
ET 165 -- Refrigeration System with Open Compressor
ET 513 -- Single-Stage Piston Compressor
ET 813 -- Two-Cylinder Steam Engine
HM 365.10 -- Supply Unit for Water Pumps
HM 365.20 -- Oil Pump Supply Unit
HM 365.32 -- Turbine Supply Unit
HM 365.45 -- Axial-Flow Pump

[1] drive and brake unit used for studying different driving or driven machines
[2] asynchronous motor with frequency converter allows 4-quadrant operation: generator or motor mode
[3] asynchronous motor with pendulum suspension, torque measurement via lever arm and force sensor
[4] optical sensor for recording the speed
[5] data exchange between base module and accessories through data cable
[6] measured values for speed and torque are digitally displayed on the device


Technical Data

Asynchronous motor with frequency converter
- power: 2200W
- max. speed: approx. 3000min-1
- max. torque: approx. 12Nm
V-belt operation
- length of V-belt: 1157mm, 1180mm, 1250mm
- type of V-belt: SPA
- diameter of V-belt pulley: 125mm
Resistive load: 72 ohm, 2400W

Measuring ranges
- torque: -15...15Nm
- speed: 0...5000min-1

Dimensions and Weight LxWxH: 1000x800x1250mm
Weight: approx. 125kg Required for Operation

400V, 50/60Hz, 3 phases or 230V, 60Hz/CSA, 3 phases

Scope of Delivery 1 drive and brake unit
1 set of V-belts
1 data cable
1 manual Order Details

070.36500  HM 365  Universal Drive and Brake