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PURPOSE
The purpose of this procedure is to provide a test that can be used for incoming in-
spection or to determine at any time if the REL 301 or 302 is functioning correctly. The
Acceptance Test confirms that a particular unit is serviceable with a minimum of time
and effort. During the Acceptance Test the emphasis is on hardware verification.
If the reader's goal is to completely evaluate REL 301 and/or REL 302 firmware, the
Engineering Evaluation Test Manual is recommended for that purpose. The manual
is intended to aid the user in understanding the software design and/or decide if the
REL 301 or REL 302 is suitable for a specific application. For further details see En-
gineering Evaluation Test Manual number TM 40-386.
The Acceptance Test Will Cover:
• Front Panel, Man-Machine-Interface (MMI) test
Self test relay status display
Metering mode display test
Settings application
• Hardware Verification
• Impedance Accuracy Check
• Tests of all inputs and contact outputs
• Additionally, if the relay under test is a REL 302, the pilot logic and pilot distance
measuring function will be tested.
Test Equipment:
The minimum test equipment required is:
• One 3-phase, variable (magnitude and phase angle), Y-connected voltage source
• One 1-phase, variable (magnitude and phase angle), current source synchronized
to the voltage source
• Two Flexitest (FT) test plugs
• Appropriate test leads and hand tools
The test equipment can be in the form of popular multi-function test equipment, such
as the equipment offered by AVO International Multi-Amp, Doble Engineering Compa-
ny or Powertec Industries Inc., or by using conventional phase shifter, load box, vari-
ous test setups.
Before energizing the relay it is extremely important to check
that all jumpers on the filter, power supply and microprocessor
modules are in the correct position.
(10/94)
Section 5. REL 301/302 ACCEPTANCE TEST
AND PERIODIC MAINTENANCE PROCEDURES
!
CAUTION
I.L. 40-386.3
5-1
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