DynAmp RCEM, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Operation and Service Manual RCEM
© 2012 DynAmp, LLC Page 32
43756 G
Place current sensor in test ground plane (metal container containing loose hardware).
Submerge current sensor below loose hardware. Use metallic hardware, preferably ball
bearings (no sharp edges). Keep the output cable outside the test ground plane. See
Figure 6.4 for a typical Hi-Pot Test Setup.
Short current sensor connector pins 1 and 2 together. Connect Hipot between connector
pins and metal container. Gradually apply 3000 Vac and maintain for 1 minute.
As the high-voltage source, we suggest the use of a commercial high-potential tester such
as the Junior Hy-Pot from Associated Research, Inc. (8221 N. Kimball Ave., Skokie, IL).
Connect the test apparatus to the ac terminals of the tester and set the tester's AC/DC
switch to the AC position.
Note that the tester has two neon lamp indicators - BREAKDOWN and LEAKAGE. Once
the connections are made, slowly increase the voltage output of the tester and look for an
indication from the lamps. It should be possible to run the voltage up to 3000 Vac without
breakdown occurring. If a LEAKAGE indication is obtained before this point, it may be
necessary to adjust the threshold of the tester's leakage test circuit (by means of a
potentiometer on the tester). Capacitive effects cause (Leakage.) A breakdown will be
indicated by the tester's BREAKDOWN lamp.
Figure 7.4
Hi-Pot Test Setup
7.11 CONNECTOR CONTAMINATION (INTEGRATOR CARDS)
In the process of daily operation or during vibration in shipment, the DAU integrator card
connectors may get contaminated. This may also happen from airborne contaminants that
may enter the DAU from normal factory use. This action may cause abnormal operation of
the RCEM.