POM2-3333 Intelligent Merging Unit Testing Device

POM2-3333 Intelligent Tester is equipped with 6*12.5A and 6*120V outputs, 8 pairs of BI, 4 pairs of BO and 6 fiber optic ports, built-in GPS, supporting PPS, IRIG-B, PTP/IEEE1588 time synchronization. Integrated design with 10.4inch screen, it is embedded with Windows 7 system locally so that it could be possible to do testing without laptop.

POM2-3333 Intelligent Tester

Intelligent Tester

POM2-3333 could be used for testing various kinds of digital protection relays and different types of MU with electronic transformer input, magnetic transformer input and electromagnetic transformer input, integrate with reliable analog output and high-speed digital signal process. It is with 0.05% high accuracy of analog outputs and strong abnormal SMV function.

For testing MU, it could do the following testings.

SMV accuracy test

Check MU amplitude,frequency,phase error between the current and volrage input and SMV output.

SMV channel delay

Check MU time delay between the current and voltage input and SMV output.

SMV Abnormal

Real-time analyze and statistics for the exceptions that will influence MU’s normal work, such as frame drop, disordering, repeat, out-of-step, SN deviation, and abnormal quality etc.

SMV dispersion

Real-time statistic on SMV interval.

GOOSE abnormal

Real-time analysis and statistics for the exceptions that will influence MU’s proper work, such as time of GOOSE deflection, time of TEST deflection, Sq loss, Sq repeating, St loss, St repeating, code error, invalid survival time, communication-timeout recovering time, and communication-outage recovering time, etc.

Synchronization accuracy

Test MU's the time synchronization accuracy between MU and POM2-3333.

Timekeeping accuracy

Test MU's time keeping accuracy after it is cut off the synchronization signal from test set and clock source.

Power Error

Test MU error range btween input power and output power.

Voltage Switch and parallel logic

Send disconnector place according GOOSE message or binary contact, and finish the test of PT voltage concatenation of MU and transferring of voltage.

SMV and GOOSE analysis

Analyze the SMV and GOOSE.

And besides MU testings, POM2-3333 also support all kinds of digital relay testings, such as Distance;Differential, Line differential,Auto-reclosing;Directional;Synchronization;Time inversed current/voltage;Frequency relay;Overcurrent/voltage, under voltage;Harmonics;CB Operate;Transplay for comtrade files,etc.

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