Description

Technical capabilities:
— the current model of a three-phase network is made at a voltage that is safe for students;
— modeling of networks with grounding systems TN-C, TN-S, TN-C-S, TT, IT;
— change in the active insulation resistance and capacitance of the phase wires of the network relative to the ground, the resistance of sections of PE conductors, and the resistance of repeated grounding conductors;
— models of 3 electrical consumers, two of which are connected through circuit breakers with overcurrent protection and one through a residual current device responsive to differential current;
— a model of a person with different shoe and floor resistance values;
— built-in digital voltmeter for measuring the phase voltage of the network, voltage on the housings of electrical installations and voltage on a person;
— built-in digital ammeter measures currents at various points in the network and current through the human body;
— automatic measurement of the response time of overcurrent protection is carried out at various values ​​of circuit currents;
— the RCD response time is automatically measured depending on the magnitude of the differential current;
— instrument readings correspond to parameter values ​​in a real network.
Allows you to study the danger of electric shock to a person and the effect of the main technical methods of protecting him (grounding, grounding, protective shutdown) in various electrical networks with voltages up to 1000 V.
Specifications:
— desktop version;
— the stand panel is covered with anodized aluminum, the pattern on the panel is abrasion resistant;
— overall dimensions 740x340x550 mm;
— power supply — 220 V 50 Hz;
— power consumption no more than 30 W;
— weight — no more than 15 kg.
Contents of delivery:
• assembled stand;
• manual;
• guidelines for conducting laboratory work.