Multi-channel Electrical Safety Tester AN9636HC(F)/ 37HC(F)

• Five-in-one: ACW/DCW/IR/ACGB/DCGB

• High performance: 1% basic accuracy for safety tester, ARC test, GUARD/RETURN mode

• Automation: RS232/LAN/USB/BARCODE/O/ALARM interfaces

• Informatization: barcode scanning and automatic recognition, optional ESRS measurement and control software

• Audio and video, information technology, and communication technology equipment (IEC62368-1)

• Safety requirements for electrical equipment for measurement, control, and laboratory use(IEC61010-1)

• Terrestrial photovoltaic (PV) modules - Design qualification and type approval (IEC61215-1-2021)

• General principles of low voltage switchgear and control gear Part 1 (IEC60947-1)

Flashover and Arc

In relevant electrical safety regulations and standards, the general requirement for determining the electrical strength test is that under the specified test voltage and test time conditions, the insulator should not experience breakdown or flashover. The destructive discharge along the surface of an insulator is called flashover, while the destructive discharge along the interior of the insulator is called breakdown. An arc is a discharge phenomenon, where an instantaneous spark is generated when current passes through certain insulating media(such as air).

The series analyzer has an arc detection function (ARC); arc levels of 0~9 can be set in ACW and DCW to detect flashover or arc discharge during the ACW/DCW test process.

Protective Design for Operator Safety

When the Interlock control is enabled, this signal can be used as a detection signal for personnel entering the safety test area or for the open grid gate of the test bench. Once the analyzer detects a circuit break in this signal, the output will be stopped, and the test cannot be started.

DUT grounding.This series analyzer has two modes: DUT case grounding(Guard)or floating grounding(Return). When selecting Guard mode, the Return terminal of the analyzer will maintain a safe conductive state with PE to prevent operators from accidentally touching the DUT housing and getting an electric shock during the ACW/DCW test process. In this mode, stray leakage current through the ground will pass through ammeter A1, causing higher leakage current and lower insulation resistance.

Leakage protection GFI. When the leakage current of the high-voltage output HV leaks to the safe PE terminal through the operator or DUT housing, the leakage current will be detected by ammeter A2. When it exceeds the limit. The analyzer will stop the high-voltage output and trigger the GFI alarm.