RFL Electronics RFL 9300 - Introduction; SINGLE-RELAY TESTS (Optional)

8.1 INTRODUCTION
This section contains the procedures required to put a two-terminal RFL 9300 system into service in the field.
These include the following:
Description Of Tests Paragraph
Single-Relay Tests (Optional procedure) 8.2
Verification Of End-To-End Communications 8.3
Startup Mode 8.4
Final Commissioning 8.5
It is assumed that the mounting and wiring procedures described in Section 5 of this manual have been per-
formed, and the relays are in place.
8.2 SINGLE-RELAY TESTS (optional)
8.2.1 INTRODUCTION
NOTE
Three terminal units are to be converted to two terminal operation for Laboratory
and Single Relay tests.
Single-relay testing is a convenient alternative to the back-to-back test procedures described in Sections 6 and
7 of this manual. During single-relay testing, the RFL 9300's communications are looped (transmit connected to
receive). This means that all injected test currents will simulate internal faults with equal infeed. Other fault types
(such as external faults and weak-feed faults) cannot be simulated during single-relay testing.
If the RFL 9300 relays were shipped directly to separate field sites, back-to-back connections cannot be made,
and the procedures in Sections 6 and 7 cannot be performed. In this situation, single-relay testing should be
performed to verify that each relay operates properly. (Even if you cannot perform the procedures in Sections 6
and 7, it is a good idea to read these sections. They contain information that will help you perform the proce-
dures in this section.)
Single-relay tests in conjunction with startup mode commissioning tests should be sufficient to confirm proper
operation and wiring of the relays. However, if End-to-End tests are desired, special test procedures are avail-
able from RFL customer service.
If you decide not to perform the single-relay tests, go to the next procedure, Verification Of End-To-End Com-
munications, as shown in paragraph 8.3 of this manual.
NOTE
When performing single-relay tests, enter a Transmit Address of “0000” to disable the addressing fea-
ture of the unit. This will allow the unit to operate in looped mode.
RFL 9300 RFL Electronics Inc.
October 20, 2004 8 - 2 (973) 334-3100