Vanguard EZCT-2000C Plus - Manual (Page 7)

REV 1 EZCT-2000C USER’S MANUAL
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displayed as a “+” sign (in-phase) or a “-” sign (out-of-phase) and is annotated with the phase
angle in degrees. The CT current ratio error and phase displacement is also calculated based on
the CT burden (or rated power) and rated current.
Current Ratio and Phase Error Tables
As part of the tabulated test results, the EZCT-2000C can also print the current ratio and current
phase error tables.
Test Record Header Information
Test record header information, including the company, substation name, circuit ID,
manufacturer, mode, CT serial number, and the operator’s name, can be stored with each
record. In addition to the test record header, a 20-character test description for each test in the
record (10 tests per record) can also be entered.
User Interface and Display
The EZCT-2000C features a back-lit LCD screen (240 x 128 pixels) that is clearly viewable in both
bright sunlight and low-light levels. An "QWERTY"-style membrane keypad is used to enter test
information and to control the unit’s functions.
Built-in Thermal Printer
A 4.5-inch wide built-in thermal printer can print the CT test results and excitation curves.
Computer Interface
The EZCT-2000C can be used as a stand-alone unit or can be computer-controlled. It can be
connected to a PC via the USB port or wirelessly via Bluetooth. In computer-controlled mode,
using the included CT Analysis Software, test records can be downloaded from the EZCT-
2000C’s memory, or CT tests can be run from the PC. Test plans can also be created with the
provided software. A test plan defines the various test parameters (test voltage, current range,
nameplate ratios, etc.) and can be used to quickly perform tests. Additionally, tabulated test
records are automatically exported to PDF, Excel, and XML formats for further analysis.
Internal Test Record Storage
The EZCT-2000C can store up to 140 test records in Flash EEPROM. Each record may contain up
to 10 excitation curves, burden test reports, current ratio readings, and polarity and DC
resistance readings. Test records can be recalled and printed on the built-in thermal printer.
They can also be transferred to a PC using the USB port, wirelessly via Bluetooth, or via the USB
Flash drive interface port.