Festo EduTrainer 571826 Manual De Utilización página 28

INS
Insulation fault
This measurement must be carried out without line voltage (L1, L2, L3).
Fault 1
Fault 2
Fault 3
Fault 4
PE/PA
Equipotential bonding busbar
This measurement must be carried out without line voltage (L1, L2, L3).
Fault 1
Fault 2
Fault 3
Fault 4
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L3 – PE approx. 0.41 MΩ (instead of > 1 MΩ)
L2 – L3 approx. 0.31 MΩ (instead of > 1 MΩ)
L2 – PE approx. 150 kΩ
L3 – PE approx. 330 kΩ
L1 – PE approx. 150 kΩ
L2 – PE approx. 150 kΩ
L1 – L2 approx. 380 kΩ
Interruption between equipotential bonding busbar (8) and heating (2).
Interruption between equipotential bonding busbar (8) and gas line (4),
resistance: 4.7 Ω between equipotential bonding busbar (8) and water pipe / boiler (5).
This resistance fault can be eliminated with a jumper between PE and the boiler.
Interruption between equipotential bonding busbar (8) and gas line (4),
resistance: 4.7 Ω between equipotential bonding busbar (8) and water pipe / boiler (5).
The jumper between PE and the boiler has no effect on this fault.
Interruption between equipotential bonding busbar (8) and gas line (4),
resistance: 4.7 Ω between equipotential bonding busbar (8) and water pipe / boiler (5).
The jumper between PE and the boiler has no effect on this fault.
Resistance of 3 Ω between the equipotential bonding busbar (8) and heating (2).
This resistance fault can be eliminated by means of additional equipotential bonding.
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