GE Industrial Solutions Entellisys System Test Kit - Manual (Page 10)

Test kit hardware/specs 11
1.3 Test kit hardware/specs
All the digital signals given from the test kit and accepted from the test kit are active low TTL
signals.
Required accuracy for protection testing is based on the accuracy of Entellisys System
Accuracy.
1.3.1 Test Unit PC
System Test Kit PC is a rugged Portable PC unit with multiple PCI slots. It uses two data
acquisition cards to generate required test signals for injecting for testing protection elements
in the Entellisys Low Voltage Switchgear system.
The test kit is entirely kiosked and runs on the Windows 2000 operating system.
1.3.2 Test kit power cord
The test kit power cord is designed with integrated surge protection equipment to protect the
system from normal power anomalies.
Once the surge protector is triggered, it will be grounded (which can be detected by the surge
protector; the LED will be ON). Once this occurs, the power cord will need to be replaced.
NOTE: The power cord must be replaced with the same cord to ensure proper operation.
Replacement Power Cord: GE CAT# ETSTESTKITCBLSRG
Table 1-1 Actual System Test Kit output accuracy
Sl.No Parameter Accuracy
1. Voltage ±0.1%
2. Frequency ±0.05 Hz
3. Phase angle ±0.1
4. Time Stamping ±0.5 ms
Table 1-2 System accuracy with the test kit
Sl.No Protection Accuracy
1. Current Protection 1X ±6.5%
2. Relay Protection ±6.5%
3. Ground Fault 0.2X ±2%