Supply Voltage Dips, Register Labels | Multi-Tech Systems 7600

Supply Voltage Dips	ION 7500 / ION 7600 User’s Guide

Supply Voltage Dips

The voltage dip is based on half-cycle RMS measurements. The duration of the dip corresponds to the period during which the RMS value remains less than 90% of the nominal voltage. The depth of the dip is defined as the difference (expressed in

%of nominal voltage) between the minimum RMS voltage over the course of the dip and the nominal voltage.

The observation period is 1 week. No evaluation criteria are suggested by either the EN 501060 standard or the UNIPEDE Measurement Guide for Voltage Characteristics; you should apply your own criteria to the data captured by the meter. The table below defines the classification scheme for counters Nij:

Depth (d%)		10ms <=	100ms <=	500ms <=	1s < t < 3s	3s <= t < 20s	20s <= t <
Duration (t)		t <100ms	t < 500ms	t < 1s	1s < t < 3s	3s <= t < 20s	1min
Duration (t)		t <100ms	t < 500ms	t < 1s			1min

10	< d < 15	N11	N21	N31	N41	N51	N61
15	<= d < 30	N12	N22	N32	N42	N52	N62
30	<= d < 60	N13	N23	N33	N43	N53	N63
60	< d <99	N14	N24	N34	N44	N54	N64

EN 50160 data (current observation period): The meter maintains the counters listed in the table above for each phase. These counters are reset on a weekly basis.

EN 50160 data (previous observation period): The meter stores the counter values listed in the table above for each phase on a weekly basis before these counters are reset. These registers are also stored in a data recorder on a weekly basis.

Events: The meter creates a message in the Event log every time one of the counters increases.

Parameter data: The meter can be enabled to record the minimum RMS voltage for each phase during a dip, the duration of the dip and the timestamp for when the dip occurred.

Voltage Dips Default Measurements

Values from the current observation period (in the first four columns) are found in

Bin modules. They are also logged weekly by Data Recorder modules 19 – 23.

Values from previous observation (PO) period are found in Store modules.

Register Labels

V1-Dip N11	V1-Dip N12	V1-Dip N13	V1-Dip N14	PO V1-Dip N11	PO V1-Dip N12	PO V1-Dip N13	PO V1-Dip N14

V1-Dip N21	V1-Dip N22	V1-Dip N23	V1-Dip N24	PO V1-Dip N21	PO V1-Dip N22	PO V1-Dip N23	PO V1-Dip N24

V1-Dip N31	V1-Dip N32	V1-Dip N33	V1-Dip N34	PO V1-Dip N31	PO V1-Dip N32	PO V1-Dip N33	PO V1-Dip N34

V1-Dip N41	V1-Dip N42	V1-Dip N43	V1-Dip N44	PO V1-Dip N41	PO V1-Dip N42	PO V1-Dip N43	PO V1-Dip N44

V1-Dip N51	V1-Dip N52	V1-Dip N53	V1-Dip N54	PO V1-Dip N51	PO V1-Dip N52	PO V1-Dip N53	PO V1-Dip N54

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Power Quality: ION Meters and EN50160 Technical Note

7500, 7600 specifications

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Multi-Tech Systems 7600 Supply Voltage Dips, Voltage Dips Default Measurements, Register Labels

Models: 7500 7600

ION 7500 / ION 7600 User’s Guide

Supply Voltage Dips

Voltage Dips Default Measurements

Register Labels

7500, 7600 specifications