I  Introduction:

Relay Protection microcomputer test device plays a key role in operating electricity Power systems reliably and safely. It is the testing device used in Professional field of microcomputer protection, relay protection, excitation measurement, Fault recorder. 

II  Performance

1.Output voltage and current Combine  flexibly 

Output 6 phase voltage and 6 phase current can be arbitrarily combined to realize the conventional 4 phase Voltage and 3 phase current mode, 6 phase voltage mode, 6 phase current mode, and 12 phase output mode. Not only compatible with the traditional various test Methods, but also can be convenient for three-phase transformer differential Test and plant power fast cutting and standby self-switching test.

2Operation method 

the Device can also be directly connected to a laptop or desktop computer for Operation, which is convenient and fast with stable performance.

3.New hi-fi linear power amplifier  

Output terminal has always insisted on using high fidelity, High reliability  linear power amplifier Module type, It is not a switch mode power amplifier,  and It will not produce high and medium Frequency interference on the site, so it ensures smooth waveform accuracy from Large current to small current.

4. High performance host.

the output part is Controlled by DSP, which has the advantages of fast operation speed, strong Real-time digital signal processing ability, transmission bandwidth, control High resolution D/A conversion.the output waveform is  high precision, low distortion and good Linearity.  It adopts a large number of Advanced technology and precision components and materials, and professional Design, so small in size, light in weight, full in function, easy to carry, can Be started up to work, flow test is very convenient.

5.Strong function of software  

 It can complete all kinds of large complex check work requiring for high degree automation, such as three phase differential test, auxiliary power supply for fast cutting and automatic input test, line protection by synchronism checking voltage reclosing and so on. and it can easily test and scanning all kinds of protection setting for fault playback, storage real-time test data, display vector chart, online print reports, etc.  

6 Independent DC power output   

the device is equipped with a way of 110v DC and 220v DC special adjustable power output.

7.Completed interface,

 USB directly connect with PC and other external devices, without any adapter Cable, easy to use.

8.Self-protection 

Use reasonable design of the heat dissipation structure, has various reliable and perfect protection and power soft start, along with fault self-diagnosis and locking function.

III Technical Parameter:

AC Current source	Amplitude Range: 6 (0-30A)     Accuracy: 0.1%
	Six-phase Current parallel output max: 180A
	Phase current long-term allowable working values: 10A
	Power: 300VA / phase
DC Current source	Amplitude: 20A
	Phase Power: 300VA
	Phase Accuracy: 0.2%
AC Voltage source	Amplitude range: 6  (0--125V)      Accuracy: 0.1%
	Line voltage range: 0--250V
	Phase voltage / line voltage Output power: 70VA / 100VA
DC Voltage source	Phase voltage output amplitude: 0~± 150V     Accuracy: 0.2%
	Line voltage output amplitude: 0~± 300V
	Phase voltage / line voltage Output power: 90VA / 180VA
DC auxiliary voltage source	110V (0.6A)
Switch Terminals	Switch input terminals: 8 pairs
	Air access point: 1--20mA, 110V internal device active
	Potential flip: 0--6VDC low      15--250VDC high
	Switch output terminals: four pairs of empty contacts
	breaking capacity: 110V / 2A, 220V / 1A.
Time Measurement range	1ms ~ 9999s accuracy 1ms
Frequency Range	0--1000Hz   Accuracy: 0.001Hz    Harmonic times: 2--20 times
Phase	0--360 °       Accuracy: 0.1 °
Power Source	AC220V ± 10% 50Hz    10A