KDZD43 handheld secondary defect elimination tester is a set of high-end testing equipment that follows the domestic power industry standards and has a high degree of automation. The equipment uses the power supply and digital electronic technology, adopts the miniature high-precision current and voltage amplifier module, built-in large-capacity lithium battery pack power supply, with high output accuracy, small size, light weight and other characteristics, the instrument uses high-definition full touch screen operation, rich testing functions. It can be used in power grid company, power plant, power construction company, protection device manufacturers, petrochemical enterprises, rail transit traction power supply system and other users of electrical secondary equipment operation maintenance and debugging work. Especially suitable for outdoor maintenance test of distribution network automation device of power system, it can complete the action logic test of protection device.

Technical characteristics
Current and voltage output accuracy of 0.05%, smooth waveform, good stability, meet a variety of test requirements;
Handheld design, small size, light weight, the whole weight 3g, easy to carry;
The internal structure is modular, and the instrument output is stable and reliable.
Chassis structure and operation panel design using multiple shortcut function keys, easy and efficient operation;
10.1 inch HD capacitive touch screen, touch screen operation, easy and fast operation;
Built-in lithium battery pack power supply, and with emergency battery jack, can be external backup battery work; It also supports external "charging treasure" power supply.
Three-phase 10A current continuous output time can be greater than 4 hours, standby time is greater than 10 hours;
The instrument adopts embedded Linux operating system, which is more stable than Windows CE operating system.
The test software module is suitable for Linux operating environment, more suitable for touch operation, parameter input and various control functions are simple and easy to use, convenient and fast;
Support a variety of online modes, through RS232 serial port, RJ45 Ethernet interface, wireless WIFI three ways to control the tester;

Main technical parameters
Alternating current
Range: 4×0~12A/ phase
Accuracy: (0A~0.2A)< 0.1mA; (0.2 ~ 12 A) A plus or minus 0.05%
Resolution: 1mA
Output power Pmax: 4×12A/ phase ≥20VA/ phase
Current rise and fall time: <100us
Total harmonic distortion: <0.1%(0.2A ~lmax)
Frequency: 10Hz ~1kHz
Amplitude-frequency characteristics: ≤+0.05%~+0.5%(10Hz~1kHz)
Output time: ≤12A, continuous output
Abnormal condition alarm: overheating, overload, distortion, open circuit automatic detection and alarm AC voltage
Output range: 4×0~130V/ phase
Accuracy: (0v~4V)<±2mV; (4 v ~ 130 v) plus or minus 0.05%
Resolution: 10 mV (10V~130V)
Output power Pmax: 4×130V/ phase ≥35VA/ phase
Voltage rise and fall time: <100us
Total harmonic distortion: ≤0.1%(2V~130V)
Frequency: 10Hz ~1kHz
Amplitude-frequency characteristics: ≤+0.05%~+0.5%(10Hz~1kHz)
Output time: Continuous output under rated conditions
Abnormal condition alarm: overheating, overload, distortion, short circuit automatic detection and alarm
Current and voltage synchronization error: ≤10us frequency
Sinusoidal signal: 10Hz~1000Hz; <1mHz (10Hz~450Hz)
Accuracy: <10mHz (450 Hz~1000Hz)
Resolution: 0.01Hz
Output characteristics: It can superimpose 2~21 harmonics of any amplitude < less than the rated value
phase
Phase Angle range: 0 to 359.99°
Accuracy: ±0.1°
Resolution: 0.01° DC
Output range: 4 x 0 to 10A/
Phase accuracy: (0A~0.2A)<±1mA; (0.2 A ~ 10 A) plus or minus 0.5%
Resolution: 1mA DC voltage
Output range: 4×150V/ phase
Accuracy: (0v~2V)<±2mV; (2 v ~ 150 v) plus or minus 0.2%
Resolution: (0v~10V)1mV, (10V~150V)10mV input
Quantity: 4 pairs
Open in characteristics: 4 open in contact adaptive empty node or potential; With potential contact turnover level 20~250v (DC) electrical isolation: 4 pairs of electrical isolation out
Quantity: 4 pairs
Type: 4 pairs of fast opening contacts (response time <100us)
DC capacity: Vmax: 300v (DC) /lmax: 0.3A
Number of USB ports: 2
Synchronous interface
GPS: 1, built-in GPS receiver module
IRIG-B: one ST port
Electrical B code /PPS timing: 1 to timing, 1 to timing, Phoenix wiring hole seat
 
Power supply
Input (AC) : 100-240V to 50-60Hz 1.5A
Output (DC) : 17V - 5A
Lithium battery power supply: built-in large capacity lithium battery pack
External power supply: Supports the power supply of an external battery pack
HDMI video interface
HDMI video interface: 1. The device interface can be mirrored into the projection through the HDMI interface to facilitate the learning of device operation and the testing and training of smart substation
Machine size and weight
Display: 10.1 inch capacitive LCD (touch screen)
Size: 317mm *243mm*86mm (W×H×D)
Weight: 3.0kg