- Energy Meter Field Calibrator
-
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-2000D Transformer Tan Delta Tester
I. Performance Characteristics
1.The instrument adopts Fourier transform digital filtering technology to measure capacitance, dielectric loss, and other parameters. The test results are highly accurate and allow for automated measurements.
2.The instrument utilizes frequency conversion technology to eliminate 50Hz power frequency interference on-site, ensuring reliable data can be measured even in environments with strong electromagnetic interference.
3.It features a full-touch large LCD display, making it easy to operate. The super-large, full-graphics touch screen interface clearly shows each process, so operators do not need additional professional training to use the instrument. The entire process can be conducted with just a simple touch.
4.Storage data: Equipped with a calendar chip and large-capacity memory, the instrument can save detection results at any time, view historical records, and print or output data. Current time and storage time can be displayed and printed as needed.
5.Scientific and advanced data management: Instrument data can be exported via a USB drive, allowing users to view and manage data on any PC using dedicated software.
6.The instrument is easy to operate, with the measurement process controlled by a microprocessor. Once the appropriate measurement method is selected, data collection is completed automatically under the microprocessor’s control.
7.The integrated model comes with standard capacitance and high-voltage power supplies, facilitating field testing and reducing field wiring requirements.
8.The instrument offers high measurement accuracy and can meet the requirements for oil intermediate loss measurement. It can perform the measurement using a standard oil cup and specialized test cables.
9.It features low-voltage shielding functionality for reverse wiring.
10.The instrument is capable of performing AC pressure resistance tests, making it convenient for PT, CT secondary AC voltage tests, and 400V low-voltage system voltage tests.
11.It can identify the frequency of external high-voltage power supplies in the range of 40Hz to 70Hz, allowing the use of either power-frequency power supplies or series resonance power supplies for large-capacity, high-voltage resonant loss tests.
12.The instrument is equipped with a thermal printer for output, includes a calendar clock for easy test reporting, and supports output via a USB drive.
13.The instrument has a computer interface that allows one computer to control up to 32 instruments. It can be integrated into a high-voltage test vehicle for measurement, data processing, and report generation.
14.Ground protection function: If the instrument is not grounded properly or lacks grounding, it will not enter the normal procedure and will not output high voltage. It also features overcurrent protection to prevent damage in case of short circuits or breakdowns during testing.
15.Electric shock protection function: If the operator accidentally experiences an electric shock, the instrument will immediately cut off the high voltage to ensure the safety of the test personnel.
II.Technical Indicators
Accuracy： Cx: ±（reading×1%+1pF）
tgδ: ±（reading×1%+0.00040）
Anti-interference index： Frequency conversion is anti-interference, with 200% interference
Electrical capacity range： Apply high pressure inside：
3pF～60000pF/10kV 60pF～1μF/0.5kV
Extra high pressure： 3pF～1.5μF/10kV 60pF～30μF/0.5kV
Resolution: up to 0.001pF, 4 valid digitstgδ
Scope: unlimited, resolution 0.001%, capacitor, inductor, resistance of the three test products automatic identification.
Test current range：5μA～5A
Internal high voltage: set the voltage range：0.5～10V
Maximum output current: 200 m A
Lift mode: the voltage is set at will. Like 5123V。
Test frequency: 40-70Hz single frequency is set at will. Like the 48.7Hz.50±0.1Hz—50±10Hz
Automatic double frequency conversion is set at will.60±0.1Hz—60±10Hz
Automatic double frequency conversion is set at will.
Frequency accuracy: ± 0.01Hz
External high voltage: the maximum test current 5A is 5 A, power frequency or frequency conversion 40-70Hz
The maximum test current during reverse wiring is 10kV / 5A, and the power frequency or frequency conversion is 40-70Hz
Input power supply: 180V~270VAC, 50Hz ± 1%, mains power or generator power supply
Computer interface: standard RS232 interface, U disk socket (automatic U disk storage data).
Printer: Micro thermal printer ambient temperature: -10℃ ~50℃ relative humidity: <90%
Overall Dimensions: 500 * 377 * 330mm Instrument weight: 26kg
Notes for the Field Test
If the test data is obviously unreasonable, consider the following potential causes:
1.Poor contact between the high-voltage line and the red clip
When using the red clip to connect to the test product, ensure that the red clip has good contact with the product. Poor contact at the connection point can cause discharges, leading to significant data fluctuations! If the drainage line's oxidation layer is too thick, scrape off the coating to avoid bad contact.
2.Poor grounding contact
Inadequate grounding can trigger instrument protection or cause severe data fluctuations. Scrape off any paint or rust to ensure a grounding resistance of 0 ohms.
3.High air humidity
Excessive humidity can cause unstable measurements. If necessary, use shielding to modify the electric field distribution around the test product. This method is controversial, so please refer to relevant regulations for guidance.
4.Power supply from a generator
If using a generator for power supply, ensure the output voltage is stable. High-voltage spikes (burrs) may cause the 380V protection to trigger. To resolve this, you can connect several power filters in series at the generator’s output.
5.Test line issues
Long-term use of test lines can lead to hidden circuit breaks, short circuits between the core wire and shield, or poor plug connections. Regularly maintain the test lines.
When testing standard capacitors, always use fully shielded plug connections to eliminate the impact of additional stray capacitance. Otherwise, the accuracy of the instrument may not be reflected properly.
6.Work mode selection
After connecting the lines, select the correct measurement mode (positive or negative). Using the wrong mode, especially in an interference environment, may affect the results. In such cases, select the frequency conversion and anti-interference mode.
7.Impact of the test method
Damage measurement is highly sensitive to the test method. Distinguish between errors due to the test method or instrument. If issues arise, first check the wiring, then check for possible instrument failures.
8.Instrument failure
Use a multimeter to check for open circuits in the test wires, short circuits between the core wire and shield, or issues with the input power supply (e.g., 220V too high or low). Ensure proper grounding.
To verify instrument functionality, use both positive and negative wiring to test a standard capacitor or a known capacitor. If the results are correct, the instrument is likely functioning properly.
Disconnect all test wires and perform an air test. If the instrument does not work correctly, it may be faulty.
III.Container List Of Instruments
5.1000A models, Inside the wiring package will configure four high-current conductor, respectively, two 50 square, two 35 square root, less than 600 a, you just need two lines of 50 square to normally rise, higher than 600 a, need to another group of wires 35 square in parallel using.
|
No. |
Item |
Qty |
|
1 |
main engine |
1 |
|
2 |
High voltage cable |
1 |
|
3 |
low tension cable |
2 |
|
4 |
power line |
1 |
|
5 |
Ground wire |
1 |
|
6 |
5A Insurance Pipe (Built in) |
2 |
|
7 |
Print paper |
1 |
|
8 |
Instructions |
1 |
|
9 |
Factory test report |
1 |
|
10 |
Certificate of qualification |
1 |
TO KNOW MORE ABOUT Huazheng, PLEASE CONTACT US！
Our experts will solve them in no time.