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CHAPTER 1: GETTING STARTED
ABOUT YOUR NEW RTT UNIT
RTT DESKTOP TEST SET– INSTRUCTION MANUAL
3
• creating RTT outputs for each type of relay
• viewing information about your relays based on inputs from your RTT.
Any actions you have to undertake during any part of the installation and configuration
processes, are indicated in the manual as follows:
Z
Open the box.
This makes it easier to separate what you must physically
do
, from the surrounding
product and process descriptions and explanations.
1.2.4
About the RTT
The RTT is a device that allows simple testing of electronic relays, by essentially simulating
input conditions to the relay in question.
It includes a single phase supply, where both volts and amperes are adjustable via rotary
knobs. It also includes eight circuits to drive the contact inputs of modern relays, as well as
2 contact outputs both monitored via LEDs. The RTT also has 3 channels of RTD resistance
simulators.
The features of the RTT allow you to test several functions of the relay, such as overcurrent,
overvoltage, directional units using the single phase source in a very easy and convenient
way. The main application is rough testing of relays in the laboratory or the field. It may
also be used for technicians and crew training purposes in a very cost effective way.
The unit is self powered from the mains and is able to work either at 50 or 60 Hz and all
common voltage ranges, 110, 120, 230, 240 Vac. When it is used with a modern
multimeter, it allows precise testing of relays and meters based on the comparison
principle.
The equipment may be used with all modern digital relays that have low burden in their
current and voltage inputs as well as low consumption digital inputs.