
Overview of BREAKDOWN VOLTAGE TESTER
This tester is for evaluating the dielectric strength (volt endurance/ volt destruction) of solid electric insulating material.
By exchanging the electrodes, the tester can also be used for board, sheet, textile, film, tape, tube, varnish, and paint.
Recent applications also include insulating film in lithium-ion batteries.
After setting the specimen between the two electrodes, voltage is applied mid-air or in-bath until the specimen insulation destructs.
The results are evaluated either by the insulation strength or destruction voltage level.
The tester is capable of both the short-time test and step-by-step test.
The tester can also be used for enamel coatings using the twistpair method by exchanging the electrodes.
Reference Standards
JIS C2110, (C3003), C3216-5, IEC-60851-5
Specification
| Specifications are subject to change without notice. | |
|---|---|
Max. Output Voltage | AC5–100 kV |
Max. Current | 20–100mA |
Transformer Capacity | 0.1–10kVA |
Sample | Solid electrical insulating materials (films, sheets, tubes, coatings, etc.), winding wire (enameled wires) |
Test Method | Beakdown voltage test (short-time test, rapid step voltage test), step voltage test, dielectric withstand tests (proof test) |
Electrodes | Selected according to the reference standard, sample, and test method |
Display / Condition settings | Touchscreen display |
Safety Devices | Earth Leakage Breaker, Emergency stop button, Safety cover with internal wire mesh and safety door lock, key-operated ready switch, two-hand button operation for test start, overvoltage prevention device, signal tower (illuminates and buzzes during test) |
Options | Oil bath test specification, CSV file output |
Power Source | AC 200 V 1-phase 15-75 A 50/60 Hz |
Dimensions and Weight (Approx.) | Varies according to the product specifications. |

Overview of TWISTING DEVICE (FOR BREAKDOWN VOLTAGE TEST)
This device is used for enabling the twistpair method for enamel insulation testing, particularly for the No.199 BREAKDOWN VOLTAGE TESTER.
The test specimen is folded in half, attached to the chucks of the device, and twisted at the set tension for twistpair method testing.
The No.199 BREAKDOWN VOLTAGE TESTER can be used for testing.
Reference Standards
JIS (C3003), C3216-5, IEC-60851-5
Specification
| Specifications are subject to change without notice. | ||
|---|---|---|
Number of Twist Stations | 1-Station | 3 or 5-Station |
Twist Method | Twist by handwheel | Twist by an electric motor |
Load | 0.029N–108 N (select 2 weights) | |
Wire Diameter | 0.050–3.200 mm | |
Rotational Speed | ― | 60 rpm |
Safety Devices | ― | Safety cover with interlock, earth leakage breaker, emergency stop botton |
Accessories | 39 N weight | ― |
| Power Source | ― | AC 100 V 1-phase 15 A 50/60 Hz |
Dimensions and Weight (Approx. ) | W250×D250×H750mm, 20kg | Varies according to the product specifications. |
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