How much is the low current arc resistance tester

NegotiableUpdate on 02/16

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

High voltage and low current arc resistance tester for electrical insulation materials such as plastics, resin adhesives, and insulating paints used in industries such as motors, appliances, and household appliances. The evaluation of arc resistance performance is mainly applicable to solid insulation materials such as plastics, films, resins, mica, ceramics, glass, insulating oil, insulating paint, cardboard, and other media; The arc resistance testing machine is computer-controlled, and the test curve can be observed online during the testing process; Automatically store test conditions and test results data, and can access, display, and print them.

Product Details

High voltage and low current arc resistance testerExperimental process description:

process	Arc current/mA	Switching time/second	Duration/second	Test duration/second
1/8-10	10	1/4s on/7/4s off	60	60
1/4-10	10	1/4s on/7/4s off	60	120
1/2-10	10	1/4s on/7/4s off	60	180
10	10	conduct	60	240
20	20	conduct	60	300
30	30	conduct	60	360
40	40	conduct	60	420

High voltage and low current arc resistance testerMain technical requirements:
1. Input voltage: AC 220V
2. Output voltage: AC 0-20 KV;
3. Electrical capacity: 1.5 KVA
4. Test method: intermittent arc, continuous arc
5. Test current: 10MA-20MA-30MA-40MA optional
6. Test voltage control error: ≤ 2%
7. Arc on-off time error:<5ms
8. Test voltage continuously adjustable: 0-20 KV
9. Electrode specification: Stainless steel plate-shaped electrode 25.4mm * 12.7mm * 0.15mm
Tungsten steel electrode ￠ 2.4mm * 70mm
Electrode configuration angle 110 degrees
Electrode weight: 50G
10. Safety protection measures: (1) Overpressure protection
(2) Overcurrent protection
(3) Short circuit protection
(4) Security door opening protection
(5) Software misoperation protection

Arc resistance
The ability of plastic materials to resist deterioration caused by high-voltage arc action is usually expressed in seconds by the time required for a standard arc flame to cause carbonization on the surface of the material until the surface conducts electricity and the arc disappears.
The method is to add two stainless steel electrodes separated by a certain distance on the plate-shaped sample, and generate an arc between the two poles with high voltage and small current or low voltage and large current as needed. At first, the intermittent time gradually shortened, and then it became a continuous arc with gradually increasing current. The material was subjected to increasingly harsh arc conditions, which eventually caused damage. Arc resistance is of great significance for insulation materials used in high-voltage switches or low-voltage high current switches, as they are often subjected to arc action during switch opening and closing. Only materials with good arc resistance can be selected.

structural composition

This instrument is divided into left and right structures. The upper left side is a small test chamber with built-in test electrode system, high-voltage output socket, test ammeter, etc; Sealed with tempered glass doors for easy observation and ensuring safety. The low-voltage terminal post is equipped with protective resistors for the high-voltage circuit, and the lower left side contains the high-voltage test transformer and voltage regulator.

On the right side of the instrument is the electrical box, which contains the PLC and touch screen of the control system, as well as various control circuits.