10KV digital insulation resistance tester

10KV digital insulation resistance testerThe instrument adopts an embedded industrial microcontroller real-time operating system, combined with an ultra-thin wire head and a graphic dot matrix LCD display. It has multiple voltage output levels (500V, 1000V, 2500V, 5000V), large capacity, strong anti-interference, synchronous display of pointers and numbers, dual-use of AC and DC, simple operation, automatic calculation of various insulation indicators (absorption ratio, polarization index), and anti power failure function for various measurement results. It is an ideal testing instrument for measuring insulation resistance of large capacity transformers, mutual inductors, generators, high-voltage motors, power capacitors, power cables, lightning arresters, and other devices. Execution standards: DL/T845.1-2004, DL/T474.1-2006.

1. characteristic
   The anti-interference insulation resistance tester is designed and developed to evaluate the electrical insulation quality of large high-voltage transformers, motors, generators, long-distance power cables, tubular busbars, etc. under strong interference in high-voltage substations and power plants. It is particularly suitable for testing sites with high capacitance and strong interference above 110kV.
   Strictly designed according to safety standards, output voltage: 500v 1000v, 2500v, 5000v.
   This instrument has an automatic calibration function, which automatically calibrates the accuracy before testing.
   This instrument has the functions of measuring the actual live voltage of the test sample, measuring the leakage current, and automatic discharge. Through the actual live voltage measurement function of the test sample, it can be intuitively seen whether the drop voltage of the test instrument with load meets the national requirements. Moreover, the insulation condition of the test sample can be visually observed through the functions of measuring the live voltage and leakage current of the actual test sample.
   ● It can automatically measure and memorize R15S, R60S, and R10min values, and automatically display the polarization index (PI), induced absorption ratio (DAR) test values, and test time.
   Anti interference performance, the instrument still ensures testing accuracy when the interference current reaches 2mA, with strong anti-interference ability, especially used in large capacity transformers of 110KV and above and long-distance power cable power systems.
   ● Automatic discharge: Advanced high-voltage discharge technology is used to quickly discharge capacitive test samples, and the discharge voltage is measured in real time during discharge (the test voltage of the sample is up to 0V). For example, if the test sample voltage is 5000V during testing, the discharge will be reduced from 5000V to 0V when stopping the test (displayed in real time and intuitively). The discharge voltage will be monitored in real time. When "wire removal safety" occurs, the operator can only perform wire removal operation.
   Due to the high voltage output during the charging process, the induction voltage of the charging socket is relatively high. Therefore, during the boost measurement, it is not allowed to touch the charging socket at will, nor can the boost measurement be started while charging.
   When the battery is low, please fully charge it before continuing to use it. Do not measure while charging, as this will burn out the charger!
   The coexistence of analog pointers and digital displays, where the numbers reflect the accuracy of the insulation resistance of the test sample, and analog pointers can reflect the dynamic changes in insulation resistance during the testing process.
   ● Alarm function during boost, buzzer warning with high voltage output, keep away from the test site, and the warning sound will automatically stop after the test is completed.
   ●10KV digital insulation resistance testerStrong carrying capacity and anti-interference ability.
   ● Digital display of battery level and under voltage alarm protection function (intelligent battery charging management).
   ● Automatic shutdown function: This instrument has an automatic shutdown function, which will automatically shut down 5 minutes after the measurement is completed.
   Short circuit protection, stop testing for high leakage current in short circuit state.

2. Technical parameters:
   

3. Rated voltage (V)	Measurement range (M Ω)	Error (M Ω)	Resolution (M Ω)
   500~2500	0~99.9	Δ≤±(2% RDG +0.2)	0.1
   5000		Δ≤±(2% RDG +0.5)	0.1
   500~5000	100~999	Δ≤±(3% RDG +2)	0.1
   500~5000	1000~9999	Δ≤±5% RDG	10
   2500~5000	10000~49999	Δ≤±5% RDG	100
   5000	50000~99000	Δ≤±5% RDG	100
   5000	100000~200000	Δ≤±10% RDG±5	100
   5000v	0.2 T-10T
   Measure voltage (kV)	Rated voltage multiplied by (1 ± 10%), with a load resistance not lower than the range of (1% RDG+1d)
   Absorption ratio and polarization index measurement range	Measurement range: 1~19.99; Maximum error: ± (5% RDG+1d)
   Residual pressure self release time	Basic error of digital display value £ 30s (0.1uF)
   anti-interference capability	2mA AC 50Hz (with accessories capable of withstanding an induced voltage of 30kv)
   Output voltage display error	2%RDG + 1d