- Energy Meter Field Calibrator
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Transformer Test Equipment
- Transformer Test Bench
- Turns Ratio Tester
- DC Resistance Tester
- Transformer Tan Delta Tester
- Sweep Frequency Response Analyzer
- Partial Discharge Tester
- CT PT Analyzer
- Transformer On-Load Tap-Changer Tester
- Short-Circuit Impedance And No-load Integrated Tester
- Winding Resistance And Turns Ratio Integrated Tester
- Transformer Capacitance And Inductance Tester
- Transformer Capacity And Characteristic Tester
- Lightning Arrester Tester
- Short-Circuit Impedance Tester
- Transformer Oil Test Equipment
- SF6 Gas Analyzer
- Secondary Injection Relay Test Set
- Resistance Tester
- Power Quality Analyzer
- HV Switch Tester
- High Voltage Test Equipment
- Cable Fault Locator
- Battery Tester
0102030405
Huazheng HZ-2000F Transformer Dielectric Loss Tester
I. Performance Feature
1.The instrument uses Fourier transform digital filtering technology to measure capacitance, dielectric loss, and other parameters, ensuring high precision in test results and convenient automatic measurement.
2.The instrument adopts frequency conversion technology to eliminate 50Hz power frequency interference in the field, enabling reliable data measurement even in environments with strong electromagnetic interference.
3.Equipped with a large full-touch LCD screen, the instrument is easy to operate. The intuitive graphical interface clearly displays each process, so operators do not need additional professional training. The entire measurement process can be controlled with a touch.
4.Data storage: The instrument is equipped with a calendar chip and large-capacity memory, allowing test results to be saved, accessed, and printed at any time. The current time and storage time can be displayed and printed as well.
5.Scientific and advanced data management: Data can be exported via USB drive and managed through special software on any PC.
6.The instrument is user-friendly, with the measurement process controlled by a microprocessor. Once the appropriate measurement method is selected, the microprocessor automatically completes the data measurement.
7.The integrated model includes a standard capacitor and high-voltage power supply, simplifying field testing and reducing the need for complex wiring.
8.The instrument offers high measurement accuracy, meeting the requirements for oil transformer dielectric loss testing. By adding a standard oil cup and special test leads, it can measure oil dielectric loss.
9.It features reverse wiring low-voltage shielding. When the 220kV CVT bus is grounded, the 10kV reverse wiring transformer dielectric loss test can be performed on the C11 without removing the wires.
10.The instrument is capable of performing AC withstand testing, which is useful for testing PT and CT secondary-side AC withstand voltage as well as 400V low-voltage systems.
11.The instrument can identify the frequency of an external high-voltage power supply (40Hz–70Hz) and allows the use of frequency or serial resonant power supplies for large-capacity and high-voltage dielectric loss tests.
12.With the CVT test function, the instrument can perform a self-excitation test on the CVT, and set four protection limits for high voltage/current and low voltage/current to ensure safety for both the operator and equipment.
13.During CVT testing, the instrument automatically tests the capacitance and dielectric loss values of C1 and C2, as well as the total capacitance and dielectric loss values of the CVT equipment.
14.CVT ratio measurement function: The instrument can measure the CVT ratio, polarity, and phase error.
15.Equipped with a thermal printer, the instrument can print test reports with a built-in calendar clock. It also supports USB data output.
16.The instrument has a computer interface that allows control of up to 32 instruments. This feature is ideal for integrating into a comprehensive high-voltage test vehicle, enabling measurement, data processing, and report generation.
17.Grounding protection function: If the instrument is not properly grounded, it will not enter normal operation and will not output high voltage. It also includes over-current protection to prevent damage in the event of a short circuit or breakdown.
18.Electric shock protection function: If the operator accidentally contacts the live parts, the instrument will immediately cut off the high voltage, ensuring the safety of the operator.
II.Technical Indicators
Accuracy： Cx: ±（readings×1%+1pF）
tgδ: ±（readings×1%+0.00040）
Anti-interference index: frequency conversion anti-interference, can still achieve the above accuracy under the interference of 200%.
Capacitance range：
Internal high voltage：3pF～60000pF/10kV 60pF～1.5μF/0.5kV
External high voltage： 3pF～1.5μF/10kV 60pF～30μF/0.5kV
Resolution: up to 0.001 pF, 4-bit significant digits
Tgδ range： no limi,The resolution is 0.001%. The capacitance, inductance and resistance can be identified automatically.
Test current range：10μA～5A
Internal high voltage：
Setting Voltage Range：0.5～10kV
Resolution: 1V Accuracy: ±(1.5%×reading+10V)
Maximum output current：200mA
Boost and drop voltage mode: the voltage is set at will. Such as 5123 v.
Test frequency: 40-70Hz single frequency can be set at will. For example, 48.7 Hz.
50± 0.1Hz to 50±10Hz automatic dual frequency conversion optional setting.
60± 0.1Hz to 60±10Hz automatic dual frequency conversion optional setting.
Frequency accuracy: ±0.01Hz
External high voltage: maximum test current 5A, power frequency or frequency conversion of 40-70Hz during positive connection
Maximum test current 10kV/5A, power frequency or frequency conversion 40-70Hz
CVT self-excitation method low voltage output: output voltage 3～50V, output current 3～30A
CVT ratio measurement:
Ratio accuracy: ±reading × 1% Ratio measurement range: 10～99999
Phase accuracy: ±0.1° Phase measurement range: 0～359.9°
Measurement time: about 40s, related to measurement method
Input power: 180V ~ 270VAC, 50Hz±1%, municipal or generator power supply
Computer interface: standard RS232 interface, U disk socket (automatic U disk storage data).
Printer: micro thermal printer
environment temperature: -10℃ ~ 50℃
relative humidity: <90%
Overall dimension: 430×330×350mm
Weight: 28kg
III.Packing List of Instrument
|
No. |
Item |
Qty |
|
1 |
Power line |
1 |
|
2 |
Ground lead |
1 |
|
3 |
CVT Black test line |
1 |
|
4 |
CVT Red test line |
1 |
|
5 |
Print paper |
1 |
|
6 |
Cx Cn cable |
2 |
|
7 |
High voltage cable |
1 |
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