1 Three-phase insulation transformer: 230-400 V; 1500 VA
1 Differential circuit breaker 4 x 6 A; curve C with minimum voltage releasing coil, stop/emergency button with mechanic holding and signaling LED on

Operation Panel

• 1 Power line of 230 Vac -1 A for powering auxiliary devices
• 1 Three-pole lever selector for inserting two different values of capacitance to earth in IT line
• 1 Simulation of substation earthing with resistances of 0.3 Ω, 1 Ω
• 1 Simulation of earth plate with resistances of
• 2 Ω, 20 Ω, 200 Ω, 2 kΩ Installation ,Commissioning , Operation , Testing & Training.
• 2 Simulators of power consuming devices with sinusoidal or unidirectional earth fault current; fault resistance of 50 kΩ, 15 kΩ, 5 kΩ, 1.5 kΩ,
• 500 Ω, bolted fault
• 1 Monitor for checking the isolation in IT systems with adjustment of the value of tripping sensitivity, and scale for monitoring the instantaneous value
• of insulation resistance of the installation
• 1 Differential circuit breaker 4 x 2 A, curve C, provided with remote opening current start-up coil
• 1 Four-pole differential circuit breaker of 25 A / 0.3 A,
• 1 Set of three fuse holders, with breakable neutral conductor and fuses 10.2 x 38 of 1 A and 2 A
• 1 Automatic magnetothermal differential switch 2 x 1 A, curve C, class AC, with possibility of using the only magnetothermal switch without the differential part
• 1 Automatic magnetothermal differential switch 2 x 1 A, curve C, class A, with possibility of using the only magnetothermal switch without the differential part
• 1 Differential relay coupled to a toroidal transformer with adjustable current Idn and tripping time Three-phase power cord (of 5 m) with EEC socket and plug 20 jumpers with safety plugs (4 mm) for assembling the various installation configurations