Huazheng Electric HZCT-100C Current Transformer Analyzer CT PT Analyzer
Instrument Characteristics And Parameters


1.1Characteristics
★ Full-featured, not only satisfy the test requirements of various CTs (include TP class), such as the excitation characteristics (i.e., volt-ampere characteristics), ratio, polarity, secondary winding resistance, secondary burden, ratio error and phase displacement, but can also be used for the tests of various PTs, including excitation characteristics of the electromagnetic unit, ratio, polarity, secondary winding resistance, ratio error and phase displacement.
★ Automatically give CT, VT parameters, including knee point voltage / current, 10% error curve, the accuracy limit factor (ALF), instrument security factor (FS), the second time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance etc.
★Test meet IEC60044 GB1208 (-1) GB16847 (IEC60044-6) became etc all kinds of transformer standards, and in accordance with the transformer types and levels of automatic choose which standard test
★ Based on advanced principle of low-frequency test method that can meet the CT test on knee voltage up to 30KV.
★Friendly interface beautiful, all Chinese graphic interface
★ The instrument can store 2000 groups of test data that won’t be lost when power off. After test ended, the data can be coped to PC by USB disk for analysis and being transformed into WORD report.
★Test is simple and convenient, one-click can complete tests of CT secondary resistance, excitation, ratio and olarity.
★Easy to carry, because the weight is less than 9Kg.
1.2 Panel
The instrument panel structure is as shown in right figure.
• Red S1, black S2 terminal: test power output
• Yellow M1, black M2 terminal: measure output voltage
• Green P1, black P2 terminal: measure inductive voltage

1.3 Technical Parameter
Transformer Tester |
||
Usage |
CT & VT |
|
Output |
0~180Vrms,12Arms,18A(peak value) |
|
CT Ratio |
Range |
1~40000 |
accuracy |
±0.05% |
|
PT Ratio |
Range |
1~40000 |
accuracy |
±0.2% |
|
Phase |
Range |
±5min |
accuracy |
0.5min |
|
DC resistance |
Range |
0~300Ω |
accuracy |
2%±2mΩ |
|
Burden |
Range |
0~300VA |
accuracy |
2%±0.2VA |
|
Power supply |
AC220V±10%,50/60Hz |
|
Environmental Conditions |
Operating temperature :-10οC ~50οC,Humidity :≤90% |
|
Weight and Dimensions |
Dimensions:340 mm×300 mm×150mm,Weight<9kg |


User Interface And Method Of Operation
2.1 Current transformer
In Para interface,use the Rotating mouse to switch cursor in transformer type frame,then choose the current transformer (CT).
2.1.1 Test connection
Used for selecting one or more experiment item, including four options such as resistance, excitation, ratio, burden etc. According to transformer type, four options can be combinated as shown in below table.
Table 2.1 CT experiment project description
experiment item |
Description |
Connection diagram |
|||
resistance |
excitation |
ratio |
burden |
||
√ | Measure CT’s secondary winding resistance | Fig 2.1,can disconnection if measuring primary winding. | |||
√ | √ | Measure CT’s secondary winding resistance and excitation characteristic | Fig 2.1,can disconnection if measuring primary winding. | ||
√ | √ | Measure CT’s secondary winding resistance, check it’s ratio and polarity | Fig 2.1 | ||
√ | √ | √ | Measure CT’s secondary winding resistance and excitation characteristic, check it’s ratio and polarity | Fig 2.1 | |
√ | Measure CT’s secondary burden | Fig 2.2 |
Note:the ‘√’ means valid ,and the blank means invalid
Step:
Step 1. According to the CT testing project description of the table 2.1 to wiring(For all the CT structures,please refer to the description of appendix D for the actual connection mode)
Step 2. The other windings of the same CT should be opened,CT’s primary side to grounding, equipment should be also to ground
Step 3. Power on and prepare parameters Settings.
Step 4. Then switch cursor to the “start” button to start
Whether you are a power utility, maintenance provider, or transformer manufacturer, our Transformer Analyzer is the ideal tool for ensuring the optimal performance and reliability of your transformers. It is a valuable asset for preventive maintenance, condition assessment, and quality control, ultimately contributing to the efficiency and longevity of your power infrastructure.
In conclusion, our Transformer Analyzer is a versatile and reliable solution for all your transformer testing and analysis needs. With its advanced features, user-friendly interface, and robust construction, it is the perfect choice for professionals seeking accurate, efficient, and comprehensive transformer testing.


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