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DIP-SWITCH SETTINGS
DEMA CPM Series Overcurrent Protection Relays are equipped with dip-switches to provide
compatibility with various kinds of protection current transformers. By employing appropriate dip-
switches;
Acquisition of phase and earth current values from X / 1 A or X / 5 A current transformer,
Acquisition and processing of phase current within the range of (0.1-40) I
n
,
Acquisition and processing of earth current within the range of (0.1-40) I
en
or (0.02-5) I
en
,
Using X / 1 A or X / 5 A CTs,
evaluation, visualization and taking action for phase current at (0.1-40) I
n
range,
evaluation, visualization and taking action for earth current at (0.1-40) I
en
, (0.02-5) I
en
range.
Current transformers play a critical role in secondary protection systems, as they generate the signals
essential for the systems. Inappropriate selection and use of current transformers may result in:
reduced performance of secondary protection systems,
total loss of protection, or
loss of primary supply continuity.
To ensure the reliability secondary protection system,
selection of current transformers must be done considering the engineering principles, and
use of secondary protection relays with standards compliant characteristics is required.
With respect to the principles hereby mentioned, the settings of CPM 310 G dip-switches must be
done considering the instructions given in the following pages and with great care.
Localization of Dip Switches on the Internal Unit
Instructions are given in the following pages and are supported by pictures and figures. Examine them
thoroughly.
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Содержание CPM 310 G
Страница 1: ...CPM 310 G Digital Overcurrent Protection Relay User Application Manual vEN 2016 03...
Страница 2: ...2...
Страница 6: ...6 ABOUT DEMA...
Страница 11: ...11 INTRODUCTION...
Страница 32: ...32 PACKING LABELING INFORMATION...
Страница 34: ...34 OPERATING MANUAL...
Страница 53: ...53 RELAY MENUS MANUAL...
Страница 55: ...55 The Menu Tree...
Страница 56: ...56...
Страница 57: ...57...
Страница 58: ...58...
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Страница 60: ...60...
Страница 61: ...61...
Страница 128: ...128 DIGICONNECT PC PROGRAM MANUAL...
Страница 189: ...189 APPLICATION DIAGRAMS...
Страница 191: ...191 Sample Power Transformer Protection Application Diagram...
Страница 193: ...193 FUNDAMENTAL CABLING DIAGRAM...
Страница 195: ...195 APPLICATION DIAGRAM NO 2 Function Function Activation Address Output Settings Internal Error Alarm Automatic...
Страница 203: ...203 APPLICATION DIAGRAM NO 10 RS485 Cabling...
Страница 204: ...204 TECHNICAL DATA...
Страница 220: ...220 GLOSSARY...