Prospective Earth Fault Current Test (Psc/I ); Rcd Types Tested; Test Signals - Fluke 1652C Calibration Manual

1652C/1653B/1654B
Calibration Manual
Prospective Earth Fault Current Test (PSC/I
Computation
Range
Resolution and Units
Accuracy
RCD Testing

RCD Types Tested

RCD Type
[1]
AC
AC
[4]
A
A
[5]
B
B
Notes
[1] AC – Responds to ac
[2] G – General, no delay
[3] S – Time delay
[4] A – Responds to pulsed signal
[5] B – Responds to smooth dc
[6] RCD test inhibited for V >265 ac
RCD tests permitted only if the selected current, multiplied by earthing resistance, is <50 V.

Test Signals

RCD Type
AC
(sinusoidal)
A
(half wave)
B (DC)
10
Prospective Earth Fault Current (PEFC/I
Short Circuit Current (PSC/I
measured mains voltage by measured loop (L-PE)
resistance or line (L-N) resistance, respectively.
0 to 10 kA or 0 to 50 kA
(See Power-On Options earlier in this manual)
Resolution
I <1000 A
K
I >1000 A
K
Determined by accuracy of loop resistance and mains
voltage measurements.
[6]
Model 1652C
[2]
√
G
[3]
√
S
G √
S √
G
S
Test Signal Description
The waveform is a sinewave starting at zero crossing, polarity
determined by phase selection (0 ° phase starts with low to high zero
crossing, 180 ° phase starts with high to low zero crossing). The
magnitude of the test current is I
The waveform is a half wave rectified sinewave starting at zero,
polarity determined by phase selection (0 ° phase starts with low to
high zero crossing, 180 ° phase starts with high to low zero crossing).
The magnitude of the test current is 2.0 x I
tests for I n = 0.01A. The magnitude of the test current is 1.4 x I
∆
(rms) x Multiplier for all tests for all other I
This is a smooth DC current according to EN61557-6 Annex A
)
K
) or Prospective
K
) determined by dividing
K
Units
1 A
0.1 kA
Model 1653B Model 1654B
√ √
√ √
√ √
√ √
√
√
n x Multiplier for all tests.
∆
n (rms) x Multiplier for all
∆
n ratings.
∆
n
∆