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Type-A RCD failing 180 degree ramp test

Former Community Member over 5 years ago

Hi

We are testing a type-A RCD (see image: "ABB") with a METREL MI 3152 (see image: "MI 3152 test").

As the image shows, the ramp test (I delta) is failing to trip the RCD for the negative half wave.

Have oneone seen this before?

Br Sebastian

attachments.zip

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0 Former Community Member over 5 years ago

seko:

Does anyone know if the ramp test is even "required" for European/Danish standards?

Hi Seko, if it's any help it's not a BS7671 certification requirement. From what I can gather the ramp test is most often used to identify a device that has become over sensitive in an existing installation rather than the commisioning of a new device.
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0 Former Community Member over 5 years ago

seko:

Does anyone know if the ramp test is even "required" for European/Danish standards?

Hi Seko, if it's any help it's not a BS7671 certification requirement. From what I can gather the ramp test is most often used to identify a device that has become over sensitive in an existing installation rather than the commisioning of a new device.
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Vote Up 0 Vote Down

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Type-A RCD failing 180 degree ramp test

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