eKAM test system includes two portable units: one control unit with a large graphical display that adjusts the AC voltage output
(up to 220 V) and one current unit (up to 2000, 3000, 5000A).
BUX 2000 (2000 A) – BUX 3000 (3000 A) – BUX 5000 (5000 A): one or more BUX current units can be connected to eKAM (not simultaneously), they can be ordered separately when the order is placed or at a later moment.
With the control knob and the LCD display, it is possible to enter the MENU mode, which allows setting many functions, making eKAM 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, 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 are available via Ethernet. TDMS software operates with all Windows® versions. The ease of operation has been the ﬁrst goal of eKAM. This is why the LCD display is so large and the dialogue in the MENU mode is made easy.
eKAM includes three measurement inputs:
- DC voltage
– High range (300 V DC)
– Medium range (10 V DC)
- AC voltage:
– High range (300 V AC)
– Medium range (10 V AC)
– Low range (3 V AC)
- Current (10 A AC or DC)
All these inputs are independent among them (unless 3V and300V) and allow the measurement of CT outputs or of another source. In addition, a digital input (up to 300 V) is available: it can measure the timing of a wet or dry contact. The instrument is housed in a transportable aluminum box, which is provided with a cover and handles for ease of transportation. A transport
the case can also be supplied upon request.
IEC 61850-9-2 Sampled Values
eKAM has the facility to test CT, both conventional and nonconventional, Merging Unit (MU) using the IEC 61850-9-2 (SV)protocol. eKAM generates the current signal and injects these quantities into the CT under test. eKAM then reads the data from the network
(Sample Values) in order to perform a variety of different tests.•Possibility to test CT ratio and polarity check up to 2000 A,
3000A and 5000A. Test of MU.
TDMS – Test & Data Management Software
TDMS, Test & Data Management Software, is a powerful software package providing data management for acceptance and maintenance testing activities.
Electrical apparatus data and test results are saved in the TDMS database for historical results analysis. The TDMS database organizes test data and results for the majority of electrical
apparatus tested with ISA test sets and related software.
PADS – Power Apparatus Diagnostic Software
PADS – Power Apparatus Diagnostic Software is a powerful software application, included in TDMS software, that optionally allows the remote control of the eKAM and STS family: STS 5000,STS 4000, STS 3000 light, and TDX 5000.
The software performs various tasks, such as:
- Download stored test results via Ethernet cable
- Create and customize test reports
- Print test results
This program runs under Windows© environment.
Note: Windows is a trademark of Microsoft Corporation.
Test Plan Editor
TEST PLAN EDITOR is an innovative and advanced software module allowing the operator to deﬁne and plan a sequence of tests. The operator deﬁnes the desired sequence of tests and sets the parameters of each test. TEST PLAN EDITOR creates a sequence of tests to be performed automatically. This feature is available for the test of the current transformer. It is also possible to create a test sequence for primary injection. At the end of the programming, starting the ﬁrst test will execute the complete sequence. During the test, test results are stored in the memory. The test set minimizes the test Test plans can be saved or recalled, like test results. Up to 64 settings can be stored and recalled. Settings are permanently stored in the memory and new settings can be written to the same address after conﬁrmation. During the test, test results can best ored in the memory. At the end of the test, settings and test results can be transmitted to a PC provided with TDMS.
The software allows saving, exporting, and analyzing test results.
Test of Current Transformer
CT Ratio, Polarity, and Burden
The ratio measurement is performed applying high current, coming from one of the BUX modules to the CT primary and measuring the CT secondary current. The burden can be bypassed, or left in series for the measurement. In this instance, the voltage drop is measured. The secondary current can be measured by a clamp. Input parameters are the nominal primary and secondary current, from which the program computes the nominal ratio and the nominal test current. The display shows:
- The actual primary current
- The corresponding secondary current
- The value of the secondary current with the nominal primary current•Actual ratio and ratio error
- Phase shift and polarity
When the burden is tested, the following parameters are displayed:
•The voltage drop across the burden;
For the burden: VA rating at the nominal current, angle and power factor