KJ880 Microcomputer Relay Protection Testing SystemDetailed product description：

The KJ880 microcomputer relay protection testing system has a standard six phase current and six phase voltage output simultaneously, with a current of 30A/phase and a voltage of 125V/phase. The six phase parallel current can reach 180A. It can be used to test various traditional relays and protection devices, as well as various modern microcomputer protections, especially for transformer differential power protection and backup automatic switching devices, making the test more convenient and perfect.

Functions and Characteristics of Microcomputer Relay Protection Testing System
1. Six phase current, six phase voltage output simultaneously, current: 30A/phase, voltage: 125V/phase
2. The main control board adopts a DSP+FPGA structure and a 16 bit DAC output, which can generate a high-density sine wave of 2000 points per week for the base wave, which is the highest level among domestic testers, greatly improving waveform quality and enhancing the accuracy of the tester.
3. The microcomputer relay protection testing system operates independently on a single machine, with a built-in high-performance industrial computer, a frequency range of 300-600MHz, 128M memory, 12G hard drive, running Windows Xp operating system. The panel is equipped with a high-end stainless steel keyboard and a trackball mouse with an 8.4-inch TFT true color LCD display.
4. The microcomputer based relay protection tester is connected to a computer through a USB 2.0 interface, without the need for any adapter cables, making it easy to use.
5. It can perform regular inspections on various relays, protection and safety automatic devices on site, and simulate various complex instantaneous, permanent, and conversion faults for whole group testing. Real time saving of test data, display of vector graphics, drawing of various characteristic curves, online printing of reports, etc.
6. The microcomputer relay protection testing system, due to its six phase current and six phase voltage output, can facilitate the testing of backup automatic switching settings and microcomputer differential protection devices, making the test very perfect.
7. Can be connected to a laptop to run, and the laptop and industrial computer use the same testing software, making it easy to use.

Technical Parameters Table of KJ880 Microcomputer Relay Protection Testing System

AC/DC voltage source	Maximum Voltage	AC6 x 125V DC6 x 150V
	maximum power	AC6 x 75VA DC6 x 100VA
	resolution	1mV
	Precision	0.1%-0.2%
	frequency	Range: 0-1000Hz Accuracy: 0.001HZ
	phase	Accuracy: 0.1 degrees
	harmonic distortion	≤0.1%
	other	Independent amplitude, frequency, and phase separation, short circuit, overload, distortion, distortion protection, fourth circuit The voltage can be set as zero sequence voltage or any other setting
AC/DC current source	Maximum current	AC6 x 30A DC6 x 30A
	maximum power	6 x 300VA 6 x 300VA
	resolution	1mA
	Precision	0.1% -0.2% ultra-high precision small current
	frequency	Range: 0-1000Hz Accuracy: 0.001HZ
	phase	Accuracy: 0.1 degrees
	harmonic distortion	≤0.1%
	other	Independent amplitude, frequency, and phase separation, short circuit, overload, distortion, and distortion protection
Auxiliary DC voltage source	output voltage	DC110V/220V
	maximum power	100W
Discrete input	number of channels	8 pairs
	input method	Empty contact point, DC5-250V，0.5A
	other	Can set anti shake time
Discrete output	number of channels	4 pairs
	output method	DCO-250V，0.5A
Time measurement		Range: 0.001-9.999.999S Accuracy: 0.001S
harmonic		It can simultaneously superimpose 2-20th harmonic in the fundamental current and voltage, and the harmonic content can be set arbitrarily
size		470mm x 405mm x 185mm
weight		About 20Kg
power supply		AC220V ± 10%50HZ ± 10%10A