MARTINDALE ET4000 Instruction Manual page 44

Martindale ET4000 / ET4500
Figure 5.24: Two parts of result field in RCD autotest
Displayed results:
x1 ........ step 1 trip-out time (I
x1 ........ step 2 trip-out time (I
x5 ........ step 3 trip-out time (I
x5 ........ step 4 trip-out time (I
x½ ....... step 5 trip-out time (I
x½ ....... step 6 trip-out time (I
I ......... step 7 trip-out current (0º)
I ......... step 8 trip-out current (180º)
Uc........ contact voltage for rated I
Notes:
The autotest sequence is immediately stopped if any incorrect condition is

detected, e.g. excessive Uc or trip-out time out of bounds.
The auto test finishes without the x5 tests when testing RCD types A and F with

rated residual currents of I
auto test result passes if all other results pass, and the indications for x5 are
omitted.
Tests for sensitivity (I ,, steps 7 and 8) are omitted for selective type RCD's.

The autotest sequence (RCD AUTO function) stops when the trip-out time is

outside the allowable time period.
Step 3
Step 5
Step 7
Figure 5.23: Individual steps in RCD autotest
Top
=I

=I

=5I

=5I

=½I

=½I

N
, 0º)
 N
, 180º)
 N
, 0º)
 N
, 180º)
 N
, 0º)
 N
, 180º)
 N
 N
= 300 mA, 500 mA, and 1000 mA. In this case the
44
Measurements
Step 4
Step 6
Step 8
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