GE Industrial Solutions Entellisys System Test Kit - Manual (Page 6)

Introduction 7
1 System Test Kit
1.1 Introduction
The Entellisys™ System Test Kit is a portable test instrument designed for field testing of the
Entellisys Low Voltage Switchgear System.
The test kit includes the following features:
•
Simulates power line characteristics for a single circuit breaker in the Entellisys Low Voltage
System
•
Verifies the function/operation of the protection system
• Overcurrent Protection Tests – Long Time, Short Time, Instantaneous and Ground Fault
Protection Tests
• Single Point Relay Protection Tests (Overvoltage, Undervoltage, Over Frequency, Under
Frequency, Power Reversal and Phase Loss, High Current Test)
•
Verifies the calibration of the trip time current curve
•
Verifies the operation of the circuit breaker actuation in “Trip mode”
•
Performs tests without trips in “No Trip mode”
•
Ground Fault Defeat function provides temporarily suspension of all Ground Fault protection
in the system
•
Automatically retrieves system configuration for increased productivity
•
Displays a summary of all protection configuration
•
Saves test results to be reviewed later
•
Windows Interface for ease of use
•
Operation from 120 Vac
The test kit Interface with the system is through the EntelliGuard™ Messenger protection unit.
The interface consists of 7 analog and several digital channels representing actual power line
characteristics. The signals are injected directly into the Messenger A/D converters. This tests
the entire Entellisys System, excluding the CTs, the CT interface (burden resistors) inside the
Messenger, and the PTs.