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Wuhan Ultra High Voltage Power Technology Co., Ltd
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Wuhan Ultra High Voltage Power Technology Co., Ltd
Fully automatic anti-interference and inter frequency dielectric loss testing instrument
NegotiableUpdate on 05/20
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Overview
Dielectric loss insulation test can effectively detect the overall moisture deterioration and local defects of electrical equipment insulation, and is widely used in electrical manufacturing, electrical equipment installation, handover, and preventive testing. The fully automatic anti-interference and non frequency dielectric loss testing instrument adopts variable frequency power supply technology, and uses single-chip microcontrollers and electronic technology for automatic frequency conversion, analog-to-digital conversion, and data operation, achieving strong anti-interference ability and fast speed measurement function.
Product Details
Product parameters
technical parameters
| accuracy | Cx: ± (reading x 1%+1pF) |
| TG δ: ± (reading x 1%+0.00040) | |
| Anti-interference index | Frequency conversion anti-interference, can still achieve the above accuracy under 200% interference |
| Range of capacitance | Internal high voltage: 3pF~60000pF/10kV 60pF~1 μ F/0.5kV |
| External high voltage: 3pF~1.5 μ F/10kV, 60pF~30 μ F/0.5kV | |
| Resolution: up to 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: 0.5-10kV |
| Maximum output current: 200mA | |
| Pressure rise and fall method: continuous smooth adjustment | |
| Voltage accuracy: ± (1.5% x reading+10V) | |
| Apply high pressure externally | The maximum test current during positive wiring is 1A, with a frequency range of 40-70Hz for power frequency or variable frequency |
| The maximum test current during reverse wiring is 1A/10kV, with power frequency or frequency conversion of 40-70Hz | |
| CVT self excitation low voltage output | Output voltage 3-50V, output current 3-30A |
| measure time | About 40 seconds is related to the measurement method |
| input power | 180V~270VAC, 50Hz/60Hz ± 1%, powered by mains or generator |
| ambient humidity | -10℃～50℃ |
| relative humidity | ＜90% |
| Overall dimensions | 435×340×340mm2 |
| weight | 31kg (excluding wire package) |
Dielectric loss insulation test can effectively detect the overall moisture deterioration and local defects of electrical equipment insulation, and is widely used in electrical manufacturing, electrical equipment installation, handover, and preventive testing.
Fully automatic anti-interference and inter frequency dielectric loss testing instrumentBy adopting variable frequency power supply technology and utilizing single-chip microcontrollers and electronic technology for automatic frequency conversion, analog-to-digital conversion, and data computation, the system achieves strong anti-interference ability, fast testing speed, high accuracy, and easy operation.
Fully automatic anti-interference and inter frequency dielectric loss testing instrumentThe variable frequency power supply adopts a high-power switching power supply, which outputs pure sine waves of 45Hz and 55Hz, automatically applies voltage, and can provide a maximum voltage of 10kV; Automatically filter out 50Hz interference, suitable for on-site testing in substations and other areas with high electromagnetic interference.
Product features
1. Equipped with CVT self-excited method testing, connect once and measure the capacitance and tg δ of C1 and C2 simultaneously
2. Equipped with reverse wiring low-voltage shielding function, C11 can perform 10kV reverse wiring dielectric loss measurement without disconnecting the wire when the CVT bus is grounded
3. Equipped with external voltage and external CNThe measurement function
4. The instrument has high measurement accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, only a standard oil cup and a dedicated testing line are needed to achieve oil dielectric loss measurement
5. Using frequency conversion technology to eliminate on-site 50Hz power frequency interference, reliable data can be measured even in strong electromagnetic interference environments
6. Overcurrent protection function ensures that the instrument is not damaged in the event of a short circuit or breakdown of the test sample
7. Comes with standard capacitors and high-voltage power supply for easy on-site testing and reduces on-site wiring
8. The instrument adopts a large screen LCD display, and the testing process is both intuitive and easy to operate through Chinese character menu prompts
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