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上海浦東申高電容器有限公司 

High Precision manual C, L & tan δ (Dissipation Factor) Measuring Bridge 
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QS30 is designed for highest precision determining the capacitance and dielectric dissipation factor tand of liquid and solid insulants, cables, capacitors, line transformers, generators, motors, bushings etc.Furthermore it can also be used for power loss measurement on shunt reactors or similar apparatus. The system performs manual measurement of Dissipation Factor (tan δ) & Power Factor (cos φ)and Capacitance. It’s designed to help you modernize your testing facility at an affordable price and, it’s simple to operate. Technical Index ·The capacitance ratio Cx/Cs (when the rated ratio is 1:1) is 0 ～ 1.111110. The step is 0.000001. The ratio (K) range includes ten steps: 1000, 500, 200, 100, 50, 20, 10, 5, 2 and 1. The measuring range of capacitance depends on the capacitance of the standard capacitor Cs, i.e. Cx = Cs ·K·(Cx/Cs) ·The measuring accuracy of capacitance ratio: when the reading of the first wheel of capacitance ratio is full scale, it shall be not more than: When tgδ< 3×103 should be ±0.00005 tgδ≥3×103 ±0.00005±0.005×tgδx ·The range of tgδ is 0.111110 ～ +0.111110正大国际彩票，the step is 0.000001。 ·The measuring accuracy of tgδx is not more than ±0.5% tgδx±5×105The display of measured capacitance: Cx =（0.1～1111.1110）Cn ·This display is the first six effective figures of measured capacitance value.Tgδ display of measured capacitance: tgδ= 1.11×101 ~ 1.11×101 ·The display value is former three figures number of measured tgδ and obtained by scientific notation. ·The accuracy of display of capacitance and tgδ: Capacitance: ±0.5%×tgδx±0.00005 Tgδ: ±0.5% tgδx±5×105 ·The Max operation current of bridge: The Max permissible current of standard bridge arm is 15mA. The Max current passed the measured arm depends on the ratio value.

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