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NR5220 series current transformer secondary loop load tester

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Product patent

Product description

Product Introduction

　　Current transformer secondary loop load tester uses a single power input port, and only two test ports are needed to complete the CT/PT (current transformer/voltage transformer) load test project. The wiring method is very simple, which effectively reduces labor intensity and greatly improves work efficiency. The instrument uses a large-screen LCD display, simple operation, clear graphical display, intuitive and convenient, and compared with similar products, it is smaller in size and lighter in weight, and is very suitable for electric power test use.

Main Feature

　　◆ Three-phase three-wire, three-phase four-wire, single-phase automatic measurement can be realized;

　　◆ The instrument has automatic range switching function to ensure test accuracy;

　　◆ The use of electronic principle circuit combined with DSP technology makes the test stable and strong anti-interference ability;

　　◆ After the measurement is completed, various parameters related to the load are automatically calculated, which is convenient for customers to analyze and test;

　　◆ In the secondary load test, a clamp-type ammeter is used to sample the current without disconnecting the secondary circuit. It can realize online measurement without power failure;

　　◆ It can store 480 sets of measurement data, which can be maintained for ten years after power failure;

　　◆ Large screen display with Chinese interface, with RS-232 communication interface.

Technical Parameters

　　◆ PT secondary load test instrument main technical indicators

　　⊙Admittance measurement accuracy:

　　DX=±(X×2%+Y×2%)±2 words

　　DY=±( Y×2%+ X×2%×34.38)±2 words

　　◆ The main technical indicators of CT secondary load test instrument

　　⊙Resistance measurement range: 0.1Ω-50.0Ω

　　⊙Impedance measurement accuracy:

　　DX=±(X×2%+Y×2%)±2 words

　　DY=±( Y×2%+ X×2%×34.38)±2 words