ISA TDX5000

General Characteristic

TDX 5000 equipment performs the measurement of the Tan Delta, of the dissipation factor, and of the capacitance of a transformer of any device, at the frequency of the mains or in a wide frequency range. With the RTD option is possible to measure the transformer ratio AT high voltage. The measurement is performed by patented technology.

TDX 5000 measurement circuitry incorporates a reference high voltage capacitor, rated 200 pF, with a Tan Delta better than0.005%, and a reference resistor bridge, with accuracy better than0.01%, and thermal drift less than 1 ppM/°C. The patented circuitry and the variable frequency output make test results immune from external noise.

Before each test, the TDX5000 automatic check and calibrate itself with the internal reference capacitor.

Available test selections:

• Ungrounded: UST-A; UST-B; UST A+B
• Grounded: GST; GSTg-A; GSTg-B; GSTg-A+B.

TDX 5000 is powered by an internal voltage generator with electronic control. The instrument must be grounded during the operation, in case the ground is disconnected during the test, the generation stops automatically.

TDX5000 can be supplied with a portable generator without loss of performance.

System Description

The STS family includes three models: STS 5000, STS 4000, and TDX5000. TDX 5000 is developed as a compact solution for high voltage Capacitance and Tan Delta (Dissipation Factor) measurements on CT, VT, PT, bushings. Using the reactor option, TDX 5000 can also perform tests on rotating machines (motors and generators).

In the local control mode, the selected output is adjustable and metered on the large, graphic LCD display. With the control knob and the LCD display, it is possible to enter the MENU mode, which allows setting many functions and that make TDX 5000 a very powerful testing device, with manual and automatic testing capabilities and with the possibility to transfer test results to a PC via ETHERNET or Pen Drive. The TDMS software suite, which comes with the test set, allows to download, display and analyze test results obtained in local mode. Remote maintenance and diagnosis of the instrument is available via Ethernet. TDMS operates with all Windows® versions.

The ease of operation has been the first goal of the TDX 5000 units. This is why the LCD display is so large and the dialogue in MENU mode is made easy.

TDX 5000 includes the detection of the digital signal coming from the RTCD- Compensating Reactor option.

The instrument is housed in a transportable aluminum box, which is provided with a cover and handles for ease of transportation. A transport trolley can be optionally supplied.