D02706R02.30
L-PRO 4000 User Manual
7-1
7 Acceptance/Protection Function Test
Guide
7.1 Introduction
The acceptance test section is a guide for testing any and all protection ele-
ments in the relay. These tests should be performed upon first delivery of the
relay, prior to applying in-service settings. Once in-service settings are applied,
ERLPhase recommends that the user test enabled functions to ensure the de-
signed application is fulfilled.
This section deals with the Acceptance Testing and the L-PRO Acceptance
Test Procedure.
First, the acceptance testing describes the test equipment requirements, calibra-
tion methods, testing the external inputs and testing the output relay contacts.
Next, a step-by-step test procedure for testing all the relay devices is outlined.
7.2 Acceptance Testing
ERLPhase relays are fully tested before leaving the factory. A visual inspec-
tion of the relay and its packaging is recommended on receipt to ensure the re-
lay was not damaged during shipping.
Generally an analog metering check, as well as testing the I/O (External Inputs
and Output Contacts) is sufficient to ensure the functionality of the relay. Fur-
ther tests can be performed on delivery and acceptance of the purchaser’s op-
tion according to the published relay specifications in “IED Settings and
Ranges” in Appendix B.
Test Equipment
Requirements
• 3 ac voltage sources (variable frequency capability)
• 3 ac current sources
• 1 ohmmeter
• 1 - 125 Vdc test supply
The electronics in the relay contain static sensitive devices and are
not user-serviceable. If the front of the relay is opened for any reason
exposing the electronics, take extreme care to ensure that the user
and the relay are solidly grounded.
Summary of Contents for L-PRO 4000
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