Automatic anti-interference precision dielectric loss measuring instrument

1Automatic anti-interference precision dielectric loss measuring instrumentRated parameters:

1. Frequency conversion anti-interference

Adopting frequency conversion anti-interference technology, in200%Accurate measurement can still be made under interference, and the test data is stable, making it particularly suitable for conducting anti-interference dielectric loss tests on site.

2. High precision measurement

Using digital filteringBy utilizing techniques such as bridge self calibration and frequency tracking, combined with high-precision three terminal standard capacitors, high-precision dielectric loss measurement has been achieved/The accuracy and stability of reverse wiring measurement are consistent.

3. Multi level security protection to ensure personal and equipment safety

High voltage protection:Short circuit, breakdown or high voltage current fluctuation of the test sample can cut off the output high voltage in a short-circuit manner.

Low voltage protection:Wrong connection380VPower fluctuations or sudden power outages will activate protection and will not cause overvoltage.

Grounding protection:When the instrument is poorly grounded and the casing carries dangerous voltage, activate the grounding protection.

C V T：The four protection limits of high voltage and current, low voltage and current, will not damage the equipment; Misselected menu will not output excitation voltage.

prevent“Rong Sheng”： Voltage rise may occur when measuring large capacity test samples“Rong Sheng”Effect: The instrument can automatically track the output voltage and maintain a constant test voltage.

抗震性能：The instrument adopts seismic design, which can withstand strong long-distance transportation vibrations and bumps without damage.

high-voltage cable：For high-voltage insulated wires, they can be dragged to the ground for use.

4. Powerful functionality

（1）Having positive/Reverse wiring, internal/External standard capacitor, internal/Multiple modes of external high voltage combination, integrated structure, capable of conducting various conventional dielectric loss tests without the need for any external auxiliary equipment.

（2）Chinese graphic menu with large screen backlightLCDDisplay clearer. Rich test data, automatically distinguishing between capacitive, inductive, and resistive samples.

（3）Equipped with an external standard capacitor interface, it automatically tracks the frequency of the external test power supply40Hz~70HzSupport large capacity and high voltage dielectric loss tests for power frequency power supplies and series resonant power supplies.

（4）automatic recognition50Hz / 60HzSystem power supply, supporting generator power supply, can measure normally even with large frequency fluctuations.

（5）The input resistance of all ranges of the instrument is lower than2ΩEliminating the impact of additional capacitance on the test line.

（6）Built in series and parallel dielectric loss measurement models, compatible with calibration tables and dielectric loss standards, facilitating instrument calibration.

（7）An external oil cup can be used for insulation oil dielectric loss testing, and an external solid material measuring electrode can be used for solid insulation material dielectric loss testing.

（8）CVTWhen using the self-excited method for measurement,C₁/C₂It can be measured simultaneously with one wiring, automatically compensating for the effects of bus grounding and standard capacitor voltage division, without the need for wire replacement or external accessories.CVTThe self-excited high-voltage connection line can drag the ground.

（9）Equipped with a calendar clock and can be stored locally100Group measurement data, with built-in micro printer for printing and output.

（10）Equipped with computer interface. Through this interface, measurement, data processing, and report output can be achieved, as well as upgrading the internal measurement software of the instrument. A computer can control32The instrument can be integrated into the comprehensive high-voltage test vehicle.

IIAutomatic anti-interference precision dielectric loss measuring instrumentKey Features:

Accuracy: Cx: ± (reading x 1%+1pF)

tgδ: ± (reading x 1%+0.00040)

Anti interference indicators: Frequency conversion anti-interference, can still achieve the above accuracy under 200% interference

Range of capacitance: insideShihigh pressure： 3pF～60000pF/10kV 60pF～1.2μF/0.5kV

outsideShiHigh voltage: 3pF～1.5μF/10kV 60pF～30μF/0.5kV

resolution：最高0.001pF，4 significant digits

Range of TG δ: Unrestricted, with a resolution of 0.001%, automatic identification of three types of samples: capacitance, inductance, and resistance

Test current range：10μA to 5A

Apply high pressure internally:Set voltage range: 100~10000V

Maximum output current: 200mA

Boosting and lowering method: Continuous smooth adjustment

Voltage accuracy:±（reading×1%）

Voltage resolution: 1V

Test frequency： 45~65Hz integer frequencyStep by step1Hz

49/51Hz、 59/61Hz automatic dual frequency conversion

Frequency accuracy:±0.01Hz

External high pressure: Maximum test current during positive wiring5A

Maximum test current during reverse wiring10000V / 5A

Test frequency: 30~300Hz

CVTSelf excitation method low voltage output: output voltage3～50VOutput current3～30A

Measurement time: about 30 seconds, depending on the measurement method

Input power supply: 180V～270VAC，50Hz/60Hz±1%，Powered by mains or generator

Computer interface: standardRS232interface, optional wireless Bluetooth communication

Printer: Comes with a mini printer

Ambient temperature -10℃～50℃

Relative humidity:<90%，No condensation