Suitable for damp deterioration, local defects, electrical manufacturing, equipment installation, handover and preventive test
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Dielectric loss measurement is a very basic method in insulation test, which can effectively find out the whole damp deterioration and local defects of insulation of electrical equipment.It is widely used in electrical manufacturing, electrical equipment installation, handover and preventive test.The measurement of dielectric loss of transformer, mutual inductor, reactor, capacitor, bushing and lightning arrester is the most basic method to measure its insulation performance.The dielectric loss tester has broken through the traditional bridge measurement method, adopting frequency conversion power supply technology, using single chip microcomputer and modern electronic technology to carry out automatic frequency conversion, mode/number conversion and data operation.Strong anti-interference ability, fast test speed, high precision, automatic digitization, easy operation;Power supply adopts high-power switching power supply, output 45Hz and 55Hz pure sinusoidal wave, automatically pressurize, can provide up to 10 kv voltage;Automatic filter 50Hz interference, suitable for substation and other electromagnetic interference large field test.Widely used in the power industry transformer, transformer, casing, capacitor, lightning arrester and other equipment dielectric loss measurement.
Product names：Dielectric loss tester, anti-interference dielectric loss tester, automatic dielectric loss tester, dissimilar frequency dielectric loss tester, dissimilar frequency dielectric loss tester, anti-interference dielectric loss tester, automatic dielectric loss tester
| Accuracy | Cx | ±（reading×1%+1pF） |
| tgδ | ±（reading×1%+0.00040） | |
| Anti-interference index | Frequency conversion anti-interference, can still achieve the above accuracy under 200% interference | |
| Capacitance range | Internal HV | 3pF～60000pF/10kV 60pF～1μF/0.5kV |
| External HV | 3pF～1.5μF/10kV 60pF～30μF/0.5kV | |
| Resolution | Maximum 0.001pF, 4 significant digits | |
| tgδThe scope of | Unlimited resolution, 0.001%, capacitance, inductance, resistance three kinds of automatic identification | |
| Test current range | 10μA～1A | |
| Power | 2kVA | |
| Internal HV | Set voltage range | 0.5～10kV |
| Maximum output current | 200mA | |
| Step-up and step-down mode | Continuous smoothing regulation | |
| The test frequency：45、50、55、60、65HzSingle frequency ; 45/55Hz、55/65Hz、47.5/52.5HzAutomatic double frequency conversion | ||
| Frequency accuracy | ±0.01Hz | |
| External HV | Maximum test current 10kV/1A in reverse connection, power frequency or frequency conversion 40-70hz | |
| Maximum test current 10kV/1A, power frequency or frequency conversion 40-70hz during reverse wiring | ||
| CVT self-excited low voltage output | Output voltage 3 ~ 50V, output current 3 ~ 30A | |
| Measuring time | About 40s, depending on how you measure it | |
| The input power | 180V ~ 270VAC, 50Hz±1%, Municipal or generator power supply | |
| Computer interface | Standard RS232 interface | |
| The printer | Weihuang A7 thermal micro printer | |
| Environment temperature | -10℃～50℃ | |
| Relative humidity | <90% | |
| Dimensions | 460×360×350mm3 | |
| Instrument weight | 28kg | |
1.The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice.In case of misappropriation or copying, legal liability will be investigated.
2.For more information about huatian products, please enter Product center . Service email：qiao@hvtest.cc
1、The dielectric loss tester USES complex current method to measure capacitance, dielectric loss and other parameters.The precision of the test results is high, which is convenient for automatic measurement
2、The dielectric loss tester USES frequency conversion technology to eliminate 50Hz power frequency interference in the field, which can provide reliable data even in the environment of strong electromagnetic interference
3、The dielectric loss tester adopts large-screen liquid crystal display, and the testing process is intuitive and easy to operate through Chinese menu prompts
4、The dielectric loss tester is easy to operate, and the measurement process is controlled by the microprocessor. As long as the appropriate measurement method is selected, the data measurement can be completed automatically under the control of the microprocessor
5、Integrated model with standard capacitor and high voltage power supply for field testing and field wiring reduction
6、The measuring accuracy of dielectric loss tester is high, which can meet the requirements of oil dielectric loss measurement. Therefore, the measurement of oil dielectric loss can be achieved only by equipped with standard oil cup and special test line
7、With the CVT test function, the self-excitation test of CVT can be realized. No external accessories are needed. Only one measurement is required
8、The reverse wiring test adopts ivddv technology, which eliminates the phenomenon of unstable reverse wiring data in the past
9、It has reverse wiring and low voltage shielding function. When 220kV CVT bus is grounded, 10kV reverse wiring dielectric loss measurement can be carried out on C11 without disconnecting the wires
10、With the function of measuring high voltage dielectric loss, it can use high voltage transformer or series resonance to conduct dielectric loss test over 10kV voltage
11、Grounding protection function. When the dielectric loss tester is not grounded or has poor grounding, the dielectric loss tester does not enter the normal program and does not output high voltage.Overcurrent protection function, the dielectric loss tester is not damaged when the sample is short-circuited or broken down
12. Electric shock protection function. When the operator of the dielectric loss tester accidentally touches the electric shock, the dielectric loss tester will immediately cut off the high voltage to ensure the safety of the tester
Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.
email： qiao@hvtest.cc
WhatsApp： +8615871365102
