HYJB-2204 Microcomputer Relay Protection Tester is developed by using the world's advanced DSP technology and switching amplifier technology. It has the characteristics of light weight, high power, high precision and high reliability, and can test electromagnetic type, transistor type, integrated circuit type and microcomputer type relay protection devices. The automatic test management platform for protection devices-relay protection test software is used to control the operation and form a new generation of highly efficient relay protection automatic test system. It can better meet the requirements of research institutions, manufacturers and power production, commissioning and operation units of power systems in countries around the world.
Main technical features:
â– Adopt high-performance DSP controller
The main part of the core uses high-performance DSP control devices and high-resolution, high-precision D / A conversion devices. It has fast operation speed, strong real-time digital signal processing capabilities, high output signal accuracy, good stability, and low distortion. It has good linearity from small signal output to large signal output.
â– High-power, high-reliability switching amplifier technology
The power output part adopts advanced switching amplifier technology, which has the characteristics of high reliability, high efficiency, small size and large output power. The voltage amplifier reaches 0 ～ 125V / phase output, the current amplifier reaches 0 ～ 30A / phase output, and the maximum output power Achieve 300VA / phase.
â– High output accuracy
The output of each analog channel of the tester can reach level 0.2, ensuring the accuracy of the test results.
â– Complete signal indication
All analog, open-in and open-out channels have corresponding indicator lights to display the use status.
â– Complete self-protection function
The tester contains a complete self-protection function to ensure that the tester works in a safe working state.
â– Modular design
Each component of the tester is independent of each other, especially each amplifier is an independent amplifier, which can be used in series or parallel output during use.
â– Automatic identification of potential and empty contacts
Provide eight sets of input channels, each channel can automatically identify the switch input signal with point and empty contact.
â– Matters needing attention
When the tested relay protection device has been turned on, do not perform wiring and other operations. Such operations can only be performed when the power supply of the relay protection is completely disconnected.
The grounding plug must be reliably grounded, otherwise it may cause electric shock.
Do not use this equipment in a place that generates a strong electromagnetic field, such as magnetic resonance imaging (MRI).
When you suspect a problem with the instrument, please do not proceed. Please contact our company.
Keep away from peripheral circuits. When the instrument is connected to power, do not touch external circuits and components.
The working power of the tester should be stable, and the voltage range should be within 220V (-15%-20%), otherwise it is recommended to supply power through a regulated power supply.
Avoid plugging or unplugging the computer communication cable with power on. Before connecting the computer and the tester with the computer communication cable, turn off the computer and the main unit of the test device.
Turn on the power of the tester first, and then connect the test line connected with the protection.
In order to eliminate the static electricity induced by the fuselage during operation, before testing, first reliably ground the host through the ground terminal.
There are cooling holes on the back panel of the tester. To ensure the normal operation of the tester during operation, do not block the cooling holes with foreign objects.
Do not store and use the device in high temperature and high humidity environments.
During the test, if an overload occurs in the output loop of the tester, the tester will interrupt the output process by itself. After the overload is eliminated, the tester will continue to output.
Please keep your relay protection test device clean.
Warning: To avoid electric shock, unplug the power cord of the tester before cleaning, and use a dry cloth to clean the shell of the instrument when cleaning. Before powering on the instrument, make sure that the instrument is completely dry.
Note: Do not immerse the device in liquid or allow any liquid to enter the housing or any opening of the instrument.
Unplug the instrument.
Always check the instrument regularly for cracks or damage. If there is any visible damage, please contact the manufacturer or authorized dealer.
After the test, when the tester is not in use, it should be placed in a special packaging box in time and managed by a dedicated person.
After the test device is used for a long time, if the data accuracy drops, please contact our company so that we can assist you to calibrate the output accuracy of the tester.
Section 2 Technical Parameters
2.1 HYJB-2204 panel layout (omitted)
2.2 Panel function introduction
A. Power input: Connect to the mains to supply power to the device.
B. Power switch: turn on or off the power supply.
C. Fuse box: power protection.
D. Ground terminal: connect the device to the ground reliably to avoid personal injury
E. Switch input terminal: Switch signal of access protection device.
F. Switch output terminal: provide switch on / off signal to the protection device
G. Voltage output terminal: output test voltage.
H. Current output terminal: output test current
I. USB communication interface: control the work of the device through a PC.
J. RJ45 network interface (reserved)
K. Serial port: connect to PC
L. Keyboard and mouse interface, external
M. Keyboard, built-in
N. LCD screen, display software
P. ON indicator: the light indicates that the test is currently in progress
Q. OT alarm light: the device is in an over-temperature state.
R. OC warning light: the voltage source is in an overcurrent state.
2.3 Technical parameters
Item
Technical Parameters
power source
Maximum output voltage
6 × 125V
Maximum output power
6 × 75VA
Resolution
1mV
Accuracy
≤0.2% (5V-110V), ≤0.5% (<5V or> 110V)
Harmonic distortion
≤0.1%
other
The output amplitude, frequency, and phase of each phase are independently adjustable, and can be used as a DC voltage output, and short circuit automatic protection.
Battery
Maximum output current
6 × 30A or 1 × 180A
Maximum output power
6 × 200VA or 1 × 1200VA
Resolution
1mA
Accuracy
≤0.2% (1A-30A), ≤0.5% (0.2A-1A)
Harmonic distortion
≤0.1%
other
The output amplitude, frequency and phase of each phase are independently adjustable, and can be used as DC current output with automatic protection against overload.
Phase
range
-360 ° —— + 360 °
Accuracy
0.1 °
frequency
range
10-1000Hz
Resolution
50μHz
drift
5ppm
Switch input
Number of input ports
8 pairs
Response time
100μs
Timing range
1ms-999,999.999s
Input
Empty contact (ON <5KΩ, OFF> 10KΩ) or with potential, withstand voltage 250VDC
other
Anti-shake time can be set
Switch output
Number of output ports
4 pairs
output method
Empty contact, withstand voltage 250VDC, capacity 250VA
size
440mm × 180mm × 320mm (width × height × depth)
weight
16Kg
Power supply
Single-phase 220VAC (± 15%), frequency 50 / 60Hz, power 2.5KW / 15A
Section 3 Operation steps
Start experimenting:
Step 1: Connect the power socket of the tester to the socket of the power supply with a power cord.
Step 2: Connect the USB interface of the tester and the USB of the PC with a USB communication cable.
Step 3: Connect the ground terminal of the tester to the ground wire in the field (this step can be omitted for the case where the ground wire of the power supply is already grounded).
Step 4: Connect the tester voltage A, B, C output channels and the non-polar terminal N and the analog input terminals VA, VB, VC, and VN of the protection device with test wires.
Step 5: Connect the tester current A, B, C output channels, non-polar terminal N and the analog input terminals IA, IB, IC, and IN of the protection device with test wires.
Step 6: Turn on the power of the tester.
Step 7: Run the PC test software when the PC is already running.
After passing the above steps, you can perform normal tests.
After the test is completed:
Step 1: Exit the test software.
Step 2: Power off the tester.
Step 3: Disconnect all cables.
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