Hi,
Nice to read some familiar names and lots of new ones on here.
I do not know if any of you familiarĀ namesĀ remember but I launched my CalCard on this site many years ago and learnt a lot from people like yourselves.
Lockdown and time on my hands has prompted me to do both an online record tool and an RCD verification device.
The latter is currently commercially sensitive hence I am limited to what I can tell you for the immediate future. The issue I am facing is the requirements of the RCD verification device and the pre-sets of the device.
Basically, it is a box. You plug it into a socket and then plug your RCD tester in. Then set the parameters on the device to emulate the operation of an RCD. A test instrument would see it and measure it as an RCD.
The main difference between my solution and a pre-defined socket; is that I have four set levels of trip current and four set trip times. All of which are highly stable and accurate. Achievable in stable electronics not mechanical relays. In addition to these four settings, I have also included four settings for the Ze Loop impedance.
Now my question is simple as I cannot find anywhere a definitive answer or best practice guide. So, I am calling on your experienced input.
What would be your suggested pre-set parameters to verify an RCD instrument?
[*]Trip Times
[*]Ze
Nice to read some familiar names and lots of new ones on here.
I do not know if any of you familiarĀ namesĀ remember but I launched my CalCard on this site many years ago and learnt a lot from people like yourselves.
Lockdown and time on my hands has prompted me to do both an online record tool and an RCD verification device.
The latter is currently commercially sensitive hence I am limited to what I can tell you for the immediate future. The issue I am facing is the requirements of the RCD verification device and the pre-sets of the device.
Basically, it is a box. You plug it into a socket and then plug your RCD tester in. Then set the parameters on the device to emulate the operation of an RCD. A test instrument would see it and measure it as an RCD.
The main difference between my solution and a pre-defined socket; is that I have four set levels of trip current and four set trip times. All of which are highly stable and accurate. Achievable in stable electronics not mechanical relays. In addition to these four settings, I have also included four settings for the Ze Loop impedance.
Now my question is simple as I cannot find anywhere a definitive answer or best practice guide. So, I am calling on your experienced input.
What would be your suggested pre-set parameters to verify an RCD instrument?
- Current Trips.
6mA
- 30mA
- 100mA
- 300mA
[*]Trip Times
5mS
- 40mS
- 200mS
- 400Ms
[*]Ze
0.5Ī©
- 1 Ī©
- 5 Ī©
- 25 Ī©
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