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Qingdao Huaneng Yuanjian Electric Co., Ltd
DC grounding verification and protection misoperation analysis tester
NegotiableUpdate on 05/19
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Overview
Introduction to the main functions of the DC grounding verification and protection misoperation analysis tester $r $n1. It can calibrate insulation monitoring devices or portable grounding search instruments online or offline; The device has a positive grounding test function, which can test the accuracy of the positive grounding test and the accuracy of the positive grounding alarm for the tested device; The device has a negative grounding test function, which can test the accuracy of the negative grounding test and the negative grounding alarm accuracy of the tested device; The $r $n device has a two pole grounding test function, which can detect the two pole grounding function of the tested device. The two pole grounding impedance provides five preset values, and users can set their own combinations;
Product Details
HN7127DC grounding verification and protection misoperation analysis testerMain Function Introduction
1．Can calibrate insulation monitoring devices or portable grounding detectors online or offline;
2．The device has a positive grounding test function, which can test the accuracy of positive grounding test and positive grounding alarm accuracy of the tested device;
3．The device has a negative grounding test function, which can test the accuracy of negative grounding test and negative grounding alarm accuracy of the tested device;
The device has a dual pole grounding test function, which can perform dual pole grounding function testing on the tested device. The dual pole grounding impedance provides five sets of preset values, and users can set their own combinations;
DC grounding verification and protection misoperation analysis tester Main technical indicators
1．Usage environment
a)Working power supply:AC220V±15%
b)Ambient temperature-20℃—45℃
c)Relative humidity:0—90%
2．Controllable DC power supply parameters
a)DC power output:0-280VConfigurable
b)Voltage output control accuracy:0.5%
c)The maximum output current is1.2A
3．AC power supply parameters
a)Output voltage level: AC110V，AC50V
4．DC voltage measurement
a)Resolution of DC voltage measurement:0.1V
b)Accuracy of direct to ground voltage measurement:
0-100V <1%
100V-280V <0.5%
c)Measurement accuracy of negative to ground voltage:
0-100V <1%
100V-280V <0.5%
d)System voltage measurement accuracy:
0-100V <1%
100V-280V <0.5%
5．Positive and negative insulation resistance parameters
a)Adjustable range of positive and negative pole pair insulation resistance:0—255kΩ
b)Positive and negative pole insulation resistance adjustment step size:1kΩ
6．Distributed capacitance parameters of branch positive and negative poles to ground
a)Adjustable range of distributed capacitance for branch positive and negative poles:0—31uF
b)Adjustment step size of distributed capacitance for branch positive and negative poles:1uF
7．System positive and negative pole to ground distributed capacitance parameters
a)Adjustable range of distributed capacitance between positive and negative poles of the system:0—110uF
b)Adjustment step size of distributed capacitance for positive and negative poles of the system:10uF
8．Test setting parameters
a)Number of selectable test point groups:1—5group
b)The testing time interval can be set within the following range:5—999S(seconds)
c)The testing time can be set within the following range:5—999S(seconds)
9. Signal comprehensive testing parameters
a)Signal amplitude:0-110V
b）Signal frequency:0.24Hz-50Hz
DC grounding verification and protection misoperation analysis tester Display and touch screen parameters
a)Display screen size:7inchTFT
b)Display screen resolution:65536Color,800X480
c)Touch screen resolution:4096point
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