ERL L-PRO 4000, Руководство пользователя

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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.