JB-802 Microcomputer Relay Protection Tester

JB-802 Microcomputer Relay Protection Comprehensive TesterOn the basis of referring to the "Technical Conditions for Microcomputer Relay Protection Test Equipment (Discussion Draft)" issued by the Ministry of Electric Power, extensively listening to user opinions, summarizing the advantages and disadvantages of similar products in China, and fully utilizing modern advanced microelectronics technology and devices, a new type of miniaturized microcomputer relay protection tester is developed. It adopts an advanced structure that operates independently on a single machine and can also be connected to a laptop for operation. The host is equipped with a new generation high-speed digital signal processor microcomputer, a true 16 bit DAC module, a new modular high fidelity high-power amplifier, a large screen LCD display, and a flexible and convenient rotating mouse controller. Single machine independent operation already has strong functionality and can perform most experiments, while connecting to a computer for operation has even more powerful operational capabilities. Small size and high precision. It has the performance and advanced functions of a large testing instrument, as well as the advantages of a small and flexible testing instrument, easy operation, and high reliability, with a high cost performance ratio. It is a handy tool for relay protection workers.

2、 Product nickname

Microcomputer relay protection tester, microcomputer relay protection calibrator, six phase microcomputer relay protection tester, six phase relay protection calibration device.

3、 Product Features

lThe classic Windows XP operating interface is user-friendly and easy to operate. In order to facilitate user use, a large number of keyboard shortcuts have been defined, making the operation "one click in place";

lHigh performance embedded industrial control computers and 8.4-inch high-resolution color TFT LCD screens can provide rich and intuitive information, including the current working status of the equipment, next step work prompts, and various help information;

lEquipped with an ultra-thin industrial keyboard and optical mouse, various operations can be completed through the keyboard or mouse just like operating a regular PC;

lEquipped with an external USB interface for convenient data access and software maintenance;

lAll projects can be tested without the need for external devices, automatically displaying and recording test data, and completing the depiction of vector diagrams and characteristic curves;

lBy using a high-performance D/A converter, the waveform generated has high accuracy, good linearity, and excellent transient response and amplitude frequency characteristics. Ensure waveform accuracy and other required indicators throughout the entire measurement range;

lThe waveform generated using the * algorithm is different from the waveform generation method of curve fitting, ensuring that the signal is a pure sine wave;

lCan directly output AC voltage, AC current, DC voltage, DC current, with variable amplitude, phase, frequency, and 2nd to 40th harmonics;

lThe power amplification part adopts a new high-power high fidelity linear power amplifier circuit, which has high output power and low ripple interference. Each phase voltage can output 120V and current can output 40A. When the output current reaches 40A, the output power can reach 450VA/phase or more, and the waveform can still ensure no distortion or peak shaving;

lIn addition to providing traditional Ua, Ub, Uc, Ia, Ib, Ic, there is also a fourth voltage Ux output. Ux can be used for various functions, such as outputting various 3Uo, outputting the synchronous voltage of the line during line protection testing, etc;

lIt has 8 input ports and 4 pairs of output ports with open contacts. The input interface can automatically adapt to passive (air contact) and active inputs, and can automatically adapt to the polarity of active inputs. It can work normally within the input voltage range of ± 250V;

lProvide various automatic testing software modules and GPS synchronization triggering tests (optional), etc;

lGPS synchronization triggering error is less than 50 μ S;

lIt can complete various complex verification tasks, conveniently test and scan various protection settings, and perform fault replay. Can store test data in real-time, display vector graphics, print reports, etc;

lAdopting a carefully designed chassis structure, with small size, good heat dissipation, light weight, easy portability, and convenient flow testing;

lThe instrument has self-protection function, adopts a reasonably designed heat dissipation structure, and has reliable and complete multiple protection measures and power soft start, as well as certain fault self diagnosis and locking functions.

4、 Product parameters

1.2.1 AC current source

lSingle phase output: 3 × 40A

lThree phase parallel connection: 120A

lMaximum output power: ≥ 450VA/phase

lThe amplitude, frequency, and phase of each phase's output current can be independently adjusted

lOutput accuracy: 0.1A~0.: ± 10mA

0.～10A：±0.1%

10A～40A：±0.2%

lResolution: 0.1A~10A: 1mA

l10A～40A：10mA

lContinuous output time:

Continuous output within the range of 0-10A

Continuous output time ≥ 60 seconds within the range of 10A to 20A

Continuous output time ≥ 10 seconds within the range of>20A

1.2.2 AC voltage source

lSingle phase output: 4 × 120V

lMaximum output power: ≥ 60VA/phase

lA voltage source with a shared neutral point for all four phases; The fourth voltage can be set as zero sequence voltage or any other setting

lThe output amplitude, frequency, and phase of each phase can be independently adjusted

lOutput accuracy: 1V~5V: ± 10mV

5V～120V：±0.1%

lResolution: 1V~10V: 1mV

10V～120V：10mV

1.2.3 DC current source

lSingle phase output: -10A to+10A

lMaximum output power: ≥ 200VA

lOutput accuracy: ± 0.~± 1A: ± 10mA

±1A～±10A：±0.2%

lResolution: ± 0~± 1A: 1mA

±1A～±10A：10mA

1.2.4 DC voltage source

lSingle phase output: -150V to+150V

lMaximum output power: ≥ 100VA

lOutput accuracy: ± 1V to ± 10V: ± 10mV

±10V～±150V：±0.2%

lResolution: ± 1V to ± 10V: 1mV

±10V～±150V：10mV

1.2.5 DeliveryCurrent voltage, current source angle

lPhase angle range: 0 °~360 °

lPhase angle accuracy: ± 0.2 °

lPhase angle resolution: 0.1 °

1.2.6 DeliveryCurrent voltage, current source frequency

lFrequency range: 1-2000Hz

l频率精度： 1Hz～100Hz：±0.001Hz

100Hz～2000Hz：±0.01Hz

lFrequency resolution: 1mHz

lCapable of outputting harmonics of any amplitude from 2 to 40 times

1.2.7 Synchronization

Voltage and current synchronicity ≤ 10 μ S

1.2.8 Input volume

l8-way independent switch contact input

lCompatible with idle contacts and active contacts ranging from 15V to 250V, capable of automatically identifying the polarity of active contacts

lTiming accuracy: ≤ 1mS when less than 1S

1.2.9 Output quantity

l4 pairs of programmable switch air contact outputs

lContact capacity: 250VDC, 0

250VAC，0.

1.2.10 Power Supply

lAC input voltage

Rated value: 220V ± 10%

Reference value: 220V ± 2%

lAC power supply frequency:

Rated value: 50Hz ± 10%

Reference value: 50Hz ± 2%

1.2.11Box size and weight

l箱体尺寸： 360mm×190mm×420mm（W×H×D）

lWeight: Approximately 20kg

1.2.12 Environmental conditions for use

lEnvironmental temperature: -10 ℃ to+45 ℃

lRelative humidity: ≤ 90%

lAtmospheric pressure: 80-110kPa