NR802 Microprocessor-based Protection Relay Test Set

NR802 microprocessor-based protection relay test set is adopted advanced structure which can run independently on the machine or connected with a laptop or computer to operate. The host computer is equipped with a new generation of high-speed digital signal processor a true 16-bit DAC module a new modular high fidelity high-power amplifier a large screen LCD and a flexible and convenient rotating mouse controller. Stand-alone operation has a strong function can carry out most of the tests connecting computer operation has more powerful operation functions. Small volume and high precision. It not only has the superior performance and advanced function of large-scale tester but also has the advantages of small-scale tester such as small size flexible simple operation high reliability and high-performance price ratio. It is a good tool for the replay protection workers.

Product Functions and Characteristics
(1) Flexible combination of voltage current output
NR802 is with 4-phase voltage and 3-phase current output that can carry out combination of various types of output protection testing easily. Each phase voltage can output to 120V the trip-combination current can output to 120A the fourth phase voltage Ux is the multi-function that can be set to four kinds 3U0 or synchronization voltage or other certain voltage output.
(2) Easy stand-alone operation
Device panel set a trackball mouse optimized keyboard and large-screen TFT LCD built-in a full set of English windows platform operating software. Boot to use easy to operate.
(3) Two operation modes
In addition to the stand-alone operation the device can connect with laptop and desktop computer to operate. The two operation functions are exactly the same and truly dual operation mode.
(4) New high-fidelity linear amplifier
The output terminal always adopts modular linear amplifier with high-fidelity and high reliability not use switching amplifier. Testing on site will not generate medium or high frequency interference and guaranteed the smooth and precision waveform which from high-current to small-current.
(5) High-performance of host
The output part adopts DSP control high speed of calculation powerful real-time digital signal processing capability widely transmission frequency controlled high-resolution D/A converter. High precision of output waveform good linearity distortion. Adopting lots of advanced technology and precision components materials and with professional structural designed which make the device small light full-functions easy to carry boot to use and the flow testing is very convenient.
(6) Powerful software function
It can complete a variety of large and complex calibration task with highly automation that can test and scan varies protection value easily make fault recurrence real-time storing of test data display vector and online printing reports. 6-phase can test three-phase differential protection conveniently.
(7) Separate and special DC power output
802 Series setting 110V and 220V special adjustable DC power output. With separate dedicated DC power output 802 device has a special way adjustable DC 110V and 220V power supply output.
(8) Complete interface
The device panel has a built-in keyboard and mouse can be stand-alone operating and also operating by connected keyboard and mouse beside there are USB interface and RS232 interface that can connect with computer and other external devices.
(9) Perfect self-protection
Self-protection
Adopting reasonable cooling structure with a variety of reliable and comprehensive protection measure and soft starting power and some self-diagnostic and interlocking function.
(10) Light & highly integrated stand-alone and unitary structure
Adopt a large number of well-designed ultra-light and high-tech smart structures which make the machine extremely light and small.

(1) AC current output
    Output accuracy: 0.5%
    Phase current output (effective value): 0~40A
    Three parallel phase current output (effective value): 0~120A
    Phase current value with long time under permission (effective value): 10A
    Phase current maximum power output: 420VA
    Three parallel phase current maximum power output: 900VA
    Three parallel phase current maximum work time: 10s
    Frequency range (base wave): 20~1000Hz
    Harmonic frequency: 1~20 times
(2) DC current output
    Output accuracy: 0.5%
    Current output: 0 ~ ± 10 A/each phase 0 ~ ± 30 A/three parallel
    Maximum output of load voltage: 20V
(3) AC voltage output
    Output accuracy: 0.5%
   Phase voltage output (effective value): 0 ~ 120v
    Line voltage output (effective value): 0 ~ 240v
Phase voltage/line voltage power output: 80VA/100VA
Frequency range (base wave): 20 ~ 1000Hz
    Harmonic frequency: 1 ~ 20 times
(4) DC voltage output
    Output accuracy: 0.5%
    Phase voltage output amplitude: 0 ~ ± 160v
    Line voltage output amplitude: 0 ~ ± 320v
    Phase voltage/line voltage power output: 70VA/140VA
(5) The switch quantity and time measurement

	NR802	Note
Switch value input	8 channels	Idle contact: 1~20mA 24V Potential contacts’ access: “0”: 0~ +6V; “1”: +11 V~+250V
Switch value output	4 pairs	DC: 220V／0.2A；AC: 220V／0.5A
Time measurement	Measuring range: 0.1ms ~ 9999s measuring accuracy: 0.1ms