[GWS-4C anti-jamming automatic dielectric loss tester] GWS 4C interference mediated

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[GWS-4C anti-jamming automatic dielectric loss tester] GWS 4C interference mediated

Information Name:	[GWS-4C anti-jamming automatic dielectric loss tester] GWS 4C interference mediated
Published:	2013-05-03
Validity:	180
Specifications:	[GWS-4C anti-jamming automatic dielectric loss tester] GWS 4C anti-jamming automatic dielectric loss tester manual
Quantity:	0.00
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Detailed Product Description：	[GWS-4C anti-jamming automatic dielectric loss tester GWS-4C interference dielectric loss automatic tester Manual 2012 12 14 9:24:31 GWS-4C-type anti-interference dielectric loss automatic measuring instrument is power plants, substations and other on-site automatic measurement of high voltage electrical equipment dielectric loss tangent values ??and capacitance high-precision instruments. To ensure accurate measurement of the strong electric field interference. Instrument in the GWS-4 type based on the Chinese menu, the operation more simple and convenient. A single operation, the computer automatically complete the whole process of measurement. Is the the ideal dielectric loss measurement equipment. The instrument also applies to the workshops, laboratories, research institutes tgδ measurement of high voltage electrical equipment, and electrical capacity; together with the insulating oil cup to test the insulating oil dielectric loss. The instrument can be used anti-wiring methods to measure ungrounded or grounded high voltage electrical equipment. Inside the instrument is equipped with high-voltage step-up transformer and take a zero closing, anti-lightning and other security measures. During the test added directly to 220V AC power output 2KV, 5KV, 10KV different levels of high-pressure, simple operation, safe. Working principle AC voltage, dielectric to consume part of the energy, this part of the electrical energy into heat energy generated loss. This energy loss is called dielectric loss. When the AC voltage is applied to the dielectric, the dielectric voltage and current into the phase angle difference ψ, ψ complementary angle delta known as the dielectric loss angle tangent the delta tangent tgδ known as the dielectric loss angle. tgδ value is used to measure the parameters of the dielectric loss. Instrument measuring circuit includes a standard circuit (Cn) and a test circuit (Cx), as shown in Figure 1. The standard route back to the built-in high stability standard capacitor measuring circuit, route back to the test and measurement line. The measurement line by sampling resistor and pre-amplifier and A / D conversion device. Standard loop current are measured by measuring the circuit loop current amplitude and the phase difference, and then digitized by the use of single-chip real-time acquisition, to arrive at the capacitance value of the test sample and the dielectric loss tangent vector operation. Inside the instrument have adopted anti-jamming measures to ensure accurate measurement of the external electric field interference. Figure 1 Measurement schematic main technical parameters 1. Conditions of use 5 ° C to -40 ° C RH <80% 2 high-voltage output the 2KV 5KV 10KV third gear capacity 1000VA3. Accuracy of precision tgδ range (reverse method) tg <10%) ( tg \| ?: ± (reading * 2.0% +0.05%) △ C x: ± (the readings * 1.0% +1.0 PF) 10%

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