I. Use

Type HZQB2612 automatic voltage tester is a multi-purpose AC voltage test instrument designed according to GB/T4074.5-2008 and IEC60851-5:2004 standards.

1.1 The breakdown voltage test of electromagnetic wire (voltage 0~15000V) is used to detect the breakdown voltage performance of enameled round wire and enameled flat wire of 0.02mm and above at room temperature. It can carry out the following test methods: round rod method: diameter 0.1mm and below the enameled round line; twisted twisted method: diameter 0.1mm above 2.5mm and below the enameled round line, steel bead method: winding flat line and diameter 2.5mm above the enameled round line.

1.2 It can be used for withstand test of electrical products and instruments, with withstand time 0~999S。

II. Main Technical Indicators Of The Instrument

2.1 Test voltage: the nominal voltage is 50 HZ approximate sinusoidal waveform AC voltage, the peak coefficient is 2 ± 5%, 0~15000V is optional, the test voltage value error is ± 3%.

2.2 When a 5±0.5mA current is passed through the high voltage loop, the instrument sends out a high voltage breakdown signal, and displays the breakdown voltage value, and the test voltage drop is not more than 2%.

2.3 The boost speed of the test voltage is shown in Table (I), and the boost speed error is ± 10%。

2.4 The capacity of test transformer> 500VA and load short circuit current> 50 mA.

2.5 The voltage holding time of the withstand voltage test ranges from 0 to 999 S seconds, and the error is less than 1 second.

2.6 Others:

Working environment: (1) the temperature is 0~40℃

(2) Relative humidity is 85%

External power supply: 220V ± 5%, 50 HZ

The instrument must be powered by an AC stationary power supply.(Steady power supply power 2 KVA) and reliable grounding, otherwise it will affect the test accuracy and service life of the instrument。

2.7 Power consumption: <1000W

2.8 Overall dimensions: 5456501700mm

2.9 Weight: about 100kg

III. Working Principle And Characteristics Of The Instrument

3.1 Working Principle:

The instrument uses the AC high voltage method to measure the breakdown voltage value or the sample withstand voltage value. According to the selected test voltage, the instrument outputs the AC voltage at both ends of the sample at a certain boost speed. Once the sample breakdown or the high voltage circuit reaches 5±0.5mA current, the high voltage will be automatically cut off, the instrument emits sound and light alarm, the digital voltmeter shows the breakdown voltage value and keeps it for a period of time, the voltage will automatically drop and the instrument will reset。

3.2 Feature:

The instrument can hold five groups of samples at a time, and can complete the breakdown or pressure withstand test of any sample one by one or separately according to the selected sample. The instrument is equipped with current detection in the primary and secondary circuits of the test voltage, and the comparison device, so the action current is sensitive and accurate. The test box door of the instrument has the safety interlock device and the indication, and has the reliable safety protection measures. It can be matched with the external temperature box and can conduct high temperature breakdown and pressure test.

The instrument has simple operation, stable performance and reliable performance. Using aluminum alloy instrument cabinet, beautiful appearance。