The outgoing breaker will experience twice the current of one of the transformer breakers. The current multiplier is used to offset the curve.Īssume two identical transformers supply a switchboard.Īssume a fault occurs on the loadside of an outgoing breaker from the switchboard. Relay settings can only be entered via the Component Editor, or via the Settings tab of the TCC. One only needs to go the library to edit a device, or check how is was built. I mentioned the library only to show how the relay device was built, and to describe the curve elements. Relay settings are not applied in the library. RE: Relay Parameter & TCC Setting in SKM sak3281 (Electrical) In your case Io> pickup amps = 0.1 * 1600 – 160A. The Pickup Calculation ''Tap* Primary Amps'' means that the Io> pickup current will be I> ( should be t> ) Definite time delay in seconds. I> = Short-Time-Pickup Current as a multiple of Primary Amps with setting range 0.1 to 20 times Primary Amps. PSM = Plug Setting Multiplier ( multiple of the Long Time Pickup Current I> ) setting current.TMS = Time Multiplier Setting ( usually from 0.1 to 1.0, but for the VAMP 0.05 to 20 ).The next curve segment is for the inverse ( IDMT curve) for an IEC Normal Inverse ( also referred to as Standard Inverse ) curve ( as opposed to a IEEE curve ). The curve segment I>, (0.1-5 x PA) is for the Long Time Pickup segment which has a setting range of 0.1 to 5 x Primary Amps. Go CAPTOR > Relays > Electronic and select the relay VAMP 230/245/255 ( for ANSI 50/51 ).Ĭlick on the Trip Curves tab of the library dialog box. Open the library by clicking on the library icon ( 6th icon from the left ). simulate_post ( '/images', body = fake_image_bytes, headers = $' ) def _init_ ( self, storage_path, uuidgen = uuid. fake_image_bytes = b 'fake-image-bytes' response = client. setattr ( 'uuid.uuid4', lambda : fake_uuid ) # When the service receives an image through POST. def test_posted_image_gets_saved ( client, monkeypatch ): mock_file_open = mock_open () monkeypatch. # "monkeypatch" is a special built-in pytest fixture that can be # used to install mocks.
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