The actual electric devices assembled in the panel and proper educational terminals with high protection degree against accidental contacts enable to assemble the various configurations, as well as a sight check of the operation: tests can be carried out with traditional instruments. This panel enables teachers to develop an exhaustive class on the state of neutral conductor in distribution systems, so that students can easily learn and test this topic.

PANEL FOR STUDYING AND TESTING DISTRIBUTION SYSTEMS (neutral point connection)

Demonstration panel with electric components

The application fi eld of these devices will cover installations of both civil and business and/or production (handicraft - industrial) sectors. The fore panel of insulating material is the support of the necessary devices for the development of the training program. The apparatuses are indicated on the panel with standard international symbols. 

TRAINING PROGRAM:

This panel enables to study electric power distribution systems with reference to the following main topics: TT, RN and IT systems

Natural, artifi cial earth plates

Checking the insulation resistance in systems insulated from earth (IT)

Suitability of materials and of equipment

Measurement of insulation resistance

Measurement of earth resistance

Protections and breaking devices

Protection against direct contacts

Protection against indirect contacts by earthing, electric separation, automatic differential switch

Protection against over-currents, selectivity in protection Devices Earthing system and conductors

Moreover, it is possible to carry out the following instrumental measurements and checks:

Identification of neutral and ground conductors

Continuity tests of protection conductors

Measurement of fault loop resistance / impedance

Check of the operation of differential switches

Check of the protection with automatic break

Measurement of fi rst earth fault in insulated systems.