-12-
f. Since measuring current is as low as 2 mA, the
earth leakage breaker (ELCB) does not trip
even if the earth side of the commercial power
supply with an ELCB is used.
Fig. 4
Green
re
Rx
Earth
Electrode
under test
Red
Where earth for mains
power supply is used.
C
P
E
Rx=Re-re
Supply
Transformer
Secondary
side
Primary
side
KPS SOLUCIONES EN ENERGÍA, S.L.
Parque Empresarial de Argame,
C/Picu Castiellu, Parcelas i-1 a i-3
E-33163 Argame, Morcín
Asturias, España, (Spain)