Woodward MicroNet TMR 5009, Installation/Hardware Manual

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Manual 85580V2 5009 Installation/Hardware
Woodward 99
Woodward-manufactured Real Power Sensors have a 2.5 Hz low pass filter (400
ms lag time) on the output to filter out the high frequency noise typically created
in a switchgear-type environment. If another vendor’s watt transducer is used,
verify that it has similar filtering criteria before it is applied with the 5009. For
more information on Woodward Real Power Sensors, refer to Woodward manual
82018.
Real Power Sensor Installation and Wiring
Mount the Real Power Sensor using the four mounting holes provided on the
flanges of the enclosure (see Figure 8-6).
Connect external wiring to the Real Power Sensor as shown in Figure 8-7. When
making wire connections, observe the following wiring recommendations:
•
Use 0.5 mm² (20 AWG) or larger stranded, twisted shielded wire for all
signal-carrying wires.
•
Use 0.8 mm² (18 AWG) or larger stranded wire for all potential and current
transformer connections.
•
Ensure all wires shown in Figure 8-6 as shielded are actually shielded wires.
•
Do not place shielded wires in cable conduits with high-voltage or high-
current carrying cables.
•
Do not connect the cable shields to any external grounds. The cable shield
is grounded at the power sensor end only.
•
Make sure that cable shields are connected through all intermediate
terminal blocks from the signal source to the signal termination. (Do not
leave any floating grounds.)