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NR9400 series automatic transformer comprehensive test system

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Product patent

Product description

Product Introduction

　　1The system meets the detection test of current transformer, electromagnetic voltage transformer, capacitive voltage transformer and other parts;
2Human computer interaction terminal and integrated test device. The test device includes intelligent measurement module, power distribution module, automatic switching line module and wiring prompt module;
3Automatically call intelligent measurement module, power supply module and switching device, start detection item by item, and automatically complete voltage and current output, parameter measurement, gear switching and data upload of each test item.

Detection capability

Serial number	Test object name	category	entry name
1	Current transformer	Class B	Temperature rise test
			Accuracy test
			Power frequency withstand voltage test of primary terminal
			Power frequency withstand voltage test between sections
			Power frequency withstand voltage test of secondary terminal
			Measurement of secondary winding resistance (RCT)
			Measurement of secondary circuit time constant (TS) (applicable to current transformers with accuracy levels of TPY, TPX and TPS)
			Test of rated inflection point potential (EK) and excitation current under EK (applicable to current transformers with accuracy levels of TPY, TPX and TPS)
			Interturn overvoltage test
			Measurement of remanence coefficient (applicable to current transformers with accuracy levels of TPY, TPX and TPS)
			Measurement of instrument security factor (FS) of current transformer for measurement (indirect method)
2	Electromagnetic voltage transformer	Class B	Temperature rise test
			Accuracy test
			Excitation characteristic measurement
			Power frequency withstand voltage test of primary terminal
			Power frequency withstand voltage test between sections
			Power frequency withstand voltage test of secondary terminal
3	Capacitive voltage transformer	Class B	Temperature rise test
			Accuracy test
			Power frequency withstand voltage test of primary terminal
			Power frequency withstand voltage test between sections
			Power frequency withstand voltage test of secondary terminal