NR1200 Microprocessor-based Protection Relay Test Set

NR1200 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.

Characteristics

(1) Flexible combination of voltage output and current output
The output voltage and output current can reach six-phase and also can arbitrary combine with regular four-phase-voltage and three-phase current six phase-voltage six phase current and 12-phase output mode. It not only compatible with the traditional way of various tests but also used for three-phase transformer differential test and auxiliary power fast switchover and automatic bus transfer test easily.
(2) 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.
(3) 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.
(4) 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.
(5) Powerful software function
It can complete a variety of large and complex calibration task with highly automatization 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.
(6) Separate and special DC power output
Setting 110V and 220V special adjustable DC power output.
(7) Completely interface
The device has a USB interface to communicate with computers and other external devices.
(8) Perfect self-protection function
Reasonable thermal structure designs comprehensive and reliable hardware protection measures with a power soft-start function and functions of software self-diagnostics and fault output latch.

2.1 Product parameter

Current channel	Standard 6-phase
Voltage channel	Standard 6-phase
The range of AC current output	30A / phase or 180A in 6-phase parallel
The range of DC current output	DC 10A / phase
The range of AC voltage output	AC 120V / phase
The range of DC voltage output	DC 160V / phase

2.2 Rated parameter

AC current output	Output accuracy: 0.5%
	6 phase current output (RMS): 0~30A per phase
	3 phase current output (RMS): 0~60A per phase
	6 phase current output (RMS) in parallel: 0~180A
	Phase current value allowed to work for a long time (RMS): 10A
	The max output power of phase-current: 300VA
	The max output power when the max output of 6 phase current in parallel: 1000VA
	The allowed working time when the max output of 6-phase current in parallel: 10s
	The range of frequency (fundamental wave): 20~1000Hz
	Harmonic frequency: 1~20 times
DC current output	Output accuracy: 0.5%
	Current output: 0 ~ ± 10A per phase
	Maximum output of load voltage: 20V
AC voltage output	Output accuracy: 0.5%
	phase-voltage output (RMS): 0 ~ 120V
	line-voltage output (RMS): 0 ~ 240V
	The power output of phase-voltage / line-voltage: 80VA / 100VA
	The range of frequency (fundamental wave): 20 ~ 1000Hz
	Harmonic frequency: 1 ~ 20 times
DC voltage output	Output accuracy: 0.5%
	Phase-voltage output amplitude: 0 ~ ± 160V
	Line-voltage output amplitude: 0 ~ ± 320V
	The power output of phase-voltage/ line-voltage: 70VA /140VA
Switch value and time measurement	8 channels of switch input	Idle contact: 1~20mA 24V Potential contacts’ access: “0”: 0 ~ +6V; “1”: +11 V ~ +250V
	4 pairs of switch output	DC: 220V/0.2A; AC: 220V/0.5A
	Time measurement	Measuring range: 0.1ms ~ 9999s measuring accuracy: 0.1ms