Sonel TWR-1 User manual

USER MANUAL
RCD testing adapter
TWR-1 ●TWR-1J
SONEL S.A.
Wokulskiego 11
58-100 Świdnica
Poland
Version 1.01 06.10.2023

TWR-1 ●TWR-1J –USER MANUAL
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1 Connecting the tester to the mains
1. Plug in the tester to the mains outlet equipped with a grounding pin.
2. Switch on the power supply using "Sieć" (Mains) switch.
WARNING
When the signal lamp installed in "Sieć" (Mains) switch is lit up, it means that the lines
marked as "Wejście" (Input) are live and the covers of lead plugs should not be removed!
3. Check whether L and N circuits are correctly connected. Improper connection of L and N leads to
the tester is indicated by active signal lamp marked as "Zamiana L z N" (L and N exchanged). In
this case, the switch marked as "Podłączenie L i N (Connecting L and N) and located on the
back of the tester must be switched to turn-off the signal lamp. When signal lamp in
"Podłączenie L i N" (Connecting L and N) switch is active in position 0, it means that the tester
is connected to the mains. In position 0 no voltage is applied to the leads marked as "Wejście'
(Input). In this case, the signal lamp "Sieć" (Mains) switch will be inactive.
4. After completing test measurements, switch off the power supply using "Sieć" (Mains) switch.
2 Checking RCD
All measurements of tested RCD test should be repeated several times to check the stability of
parameters. If the results of successive measurements significantly differ from each other, the RCD
should be regarded as defective.
For RCDs type A, perform measurements for both sinusoid currents with initial phase of 0 and
180 degrees and for positive and negative unidirectional pulsating currents. In the case of RCDs Type
B, perform also measurements for positive and negative Direct Current. The results obtained for dif-
ferent current shapes do not have to be similar, whereas those for a single current shape, but different
phases or directions should be similar.
WARNING
A RCD should be connected to the tester only when the power supply is disconnected!
1. Connect the leads installed at the back of the tester (marked as "Wejście" [Input]) to the appro-
priate input terminals of the RCD. For single-phase RCDs leave L2 and L3 leads unconnected.
Set the rotational function selector at MEM.
2. Switch on the power supply and check the RCD using the built-in high-speed testing circuit (usu-
ally a button marked as TEST). If the RCD does not trip, further tests may help to precisely de-
termine the defect/damage.
3. Switch off the power supply and connect leads marked as "Wyjście" (Output) to the output ter-
minals of the RCD.
4. Connect MRP or MPI meter to the tester and switch on the power supply.
5. Measure RCD tripping time.
RCD type
Operational
Damaged
standard
tA= 0 .. 200 ms
tA> 200 ms
selective
tA= 0 .. 500 ms
tA> 500 ms

TWR-1 ●TWR-1J –USER MANUAL
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MRP-200 and MIE-500 meters provide measurements of RCD tripping time with currents
1, 2 and 5 x INand additionally ½ x INfor MPI-5XX. At higher currents the tripping time
should be shorter, but does not have to be shortened in proportion to the increase of the
current value.
6. Measure RCD tripping current. According to PN-IEC 755 + A1 + A2 "General requirements for
protective residual current devices", the measured values for each type of RCD should be within
the following limits:
RCDs type AC
IN
Imin [mA]
Imax [mA]
10 mA
5
10
30 mA
15
30
100 mA
50
100
300 mA
150
300
500 mA
250
500
RCDs type A
IN
Imin [mA]
Imax [mA]
10 mA
4
20
30 mA
11
42
100 mA
35
140
300 mA
105
420
RCDs type B
IN
Imin [mA]
Imax [mA]
10 mA
5
20
30 mA
15
60
100 mA
50
200
300 mA
150
600
7. For three-phase RCDs repeat tests three times, in accordance with sec. 5 and 6, switching knob
marked as "Faza" (Phase) into L1, L2 and L3 positions.
3 Technical data
Power supply 230V/50Hz
Compatible with the following meters:
TWR-1……………… MRP-1, MRP-110, MRP-120, MRP-200, MIE-500
TWR-1J……………MPI-502, MPI-502F, MPI-508, MPI-510, MPI-511, MPI-520, MPI-525
Tested RCDs:
single and three-phase,
standard and selective,
IN=10, 30, 100, 300 and 500mA,
testing range depends on the meter used:
MRP-1, MRP-110, MRP-120: current measurement and tripping time of RCDs type AC
(sinusoidal current),
MPI-502, MPI-502F, MPI-508, MIE-500: current measurement and tripping time of
RCDs type AC, A (unidirectional pulsating current),
MPI-510, MPI-511, MPI-520, MPI-525, MRP-200: current measurement and tripping
time (for currents 1, 2 and 5 x IN) RCDs type AC, A (unidirectional pulsating current)
and B (direct current).
The testing process does not trip RCDs installed in the system to which the tester is connected.

TWR-1 ●TWR-1J –USER MANUAL
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4 Manufacturer
The manufacturer of equipment which provides warranty and post-warranty service is:
SONEL S.A.
Wokulskiego 11
58-100 Świdnica
Poland
tel. [phone] (Customer Service)
e-mail: custom[email protected]
web page: www.sonel.com