Volt-Ampere Ratio Polarity Tester
Darui Electric recommends
Main Technical Features
★Comprehensive functions, meeting the test requirements for various types of CTs (such as protection, metering, TP types) including excitation characteristics (i.e., volt-ampere characteristics), ratio, polarity, secondary winding resistance, secondary burden, ratio error, and phase error, and also applicable to various types of PT electromagnetic units for excitation characteristics, ratio, polarity, secondary winding resistance, ratio error, and phase error tests.
★Automatically provides knee point voltage/current, 10% (5%) error curve, accuracy limit factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance, and other CT, PT parameters.
★Tests comply with GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207 and other instrument transformer standards, and automatically selects the appropriate standard based on the type and class of the transformer.
★Based on advanced low-frequency method testing principle, capable of handling CT tests with knee points up to 30KV.
★User-friendly and aesthetically pleasing interface, full Chinese graphical interface.
★The device can store 1000 sets of test data, which is not lost upon power failure. After testing, use a USB drive to save to a PC, analyze data with software, and generate WORD reports.
★Simple and convenient testing, one-click completion of CT DC resistance, excitation, ratio, and polarity tests, and except for burden test, all other CT tests use the same wiring method.
★Easy to carry, device weight <9Kg.
Device Panel Description
The device panel structure is as shown in the right figure, with wiring terminals from left to right:
Red and black S1, S2 terminals: Test power output
Red and black S1, S2 terminals: Output voltage feedback measurement
Red and black P1, P2 terminals: Induced voltage measurement terminals
LCD display: Chinese display interface
Micro printer: Prints test data and curves
Rotary mouse: Input values and operation commands
Main Technical Parameters
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