Eaton IQ 200, Инструкция по установке, эксплуатации и обслуживанию

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Page 16
TD 17558
Effective 3/98
3.3 WIRING
The IQ 200 requires conn ection to system currents and voltages. If mounted
separately, the cases of IQ 200 Display Module
and the IQ 200 Base Module case
must be connected to earth ground. If mounted together as one unit, the case of the
IQ 200 Base Module must be connected to earth ground.
Additionally, the IQ 200 may require connection to an IMPACC network and/or an
external pulse counter. The steps for completing each type of wiring are described
in the following sections.
CAUTION
ALL WIRING MUST CONFORM TO NATIONAL AND LOCAL CODES. SUFFICIENT
ROOM MUST BE PROVIDED FOR ROUTING OF ALL POWER CABLES. ALL
SIGNAL CABLES MUST BE ROUTED SEPARATELY FROM POWER CABLES. THE
CATEGORY 5 CABLE CONNECTING THE IQ 200 DISPLAY MODULE AND THE
IQ 200 BASE MODULE IS RATED AT 300V. THIS CABLE MUST NOT BE ROUTED
IN THE SAME WIRING CHANNEL AS THE SYSTEM POWER.
3.3.1 Wiring System Current and Voltage
The IQ 200 must be connected to sources of current and voltage for each phase
that is to be monitored. Current transformers having a 5 amp secondary provide the
phase current measurement. Phase voltages under 600V may be measured directly
by the IQ 200. Phase voltages over 600V must be measured using potential
transformers.
3.3.2 Wiring Diagrams for Various System Configurations
Recommended IQ 200 wiring diagrams for current and potential transformers are
shown below in figures 3.5 through 3.14. It is the user’s responsibility to determine
which wiring diagram applies and to specify and install all current transformers,
potential transformers, fuses, and other components.