The Variable Frequency Dielectric Loss Tester, also known as the Variable Frequency Dielectric Loss Measuring Instrument, is a high-precision instrument used for fully automatic measurement of the dielectric loss tangent (tgδ) and capacitance of various high-voltage power equipment at power plants, substations, and other field sites. Due to the adoption of frequency conversion technology, accurate measurement can be ensured under strong electric field interference. The instrument uses a Chinese menu operation, and the microcomputer automatically completes the entire measurement process. This instrument is also suitable for measuring the tgδ and capacitance of high-voltage electrical equipment in workshops, laboratories, and scientific research institutions.
This instrument can measure high-voltage electrical equipment that is ungrounded or directly grounded using the positive or reverse connection method. It can also measure the tgδ of capacitive voltage transformers and the capacitance of main capacitors C1 and C2.
The instrument is internally equipped with a high-voltage step-up transformer and incorporates safety protection measures such as zero-crossing switching and lightning protection. During the test, high voltages of different levels from 0.5KV to 10kV are output, making operation simple and safe.
Features of the Tester
◆ Simple operation, Chinese display, and printing
◆ Convenient to use, no conversion required
◆ The Variable Frequency Dielectric Loss Tester has its own high voltage, strong anti-interference capability, and short test time.
Characteristics of the Tester
Tester Parameters
| 1. | Due to the adoption of frequency conversion technology, accurate measurement can be ensured under strong electric field interference. |
| 2. | The instrument uses a Chinese menu operation, and the microcomputer automatically completes the entire measurement process. |
| 3、 | This instrument is also suitable for measuring the tgδ and capacitance of high-voltage electrical equipment in workshops, laboratories, and scientific research institutions; it also has the advantages of being convenient, simple, and accurate for loss testing of insulating oil. |
| 4、 | This instrument can measure high-voltage electrical equipment that is ungrounded or directly grounded using the positive or reverse connection method. It can also measure the capacitance of the capacitive voltage transformer's tgδ and main capacitors C1 and C2. |
| 5、 | The instrument is internally equipped with a high-voltage step-up transformer and incorporates safety protection measures such as zero-crossing switching and lightning protection. During the test, high voltages of different levels from 0.5KV to 10kV are output, making operation simple and safe. |
1、High voltage output: 0.5 to 10kV, with an increase of 500V per step, totaling 20 steps
High voltage output cable, can be used dragging on the ground
Three frequencies: 45Hz, 50Hz, 55Hz
2、Capacity: 1500VA
3、Accuracy: tgδ: ±(reading*1.0%+0.08%)
Cx: ±(reading*1.5%+5PF)
4、Resolution: tgδ: 0.01% Cx: 1pF
5、Measurement range: 0.1% < tgδ < 50%
3PF< Cx < 60000PF
At 10KV, Cx ≤30000PF
At 5KV, Cx ≤60000PF
6、Power supply: AC 220V士10% 50士1Hz
7、Harmonic adaptation: ≤3%
8、Operating conditions: -15℃－50℃ relative humidity <80%
9、Dimensions: 460（L）×335（W）×340（H）
10、Weight: 30 kg
