Load switch tester

On load switch testerPerformance characteristics

1. It can measure parameters such as transition waveform, transition time, transition resistance, and three-phase synchronicity.
2. Screen dot matrix LCD display, hierarchical Chinese menu, easy and fast operation.
3. Intelligent testing and result analysis, amplifying or reducing waveform test results.
4. Three independent voltage regulators are suitable for measurements without windings, while three independent constant current sources are suitable for measurements with and without windings.
5. Six independent signal processing, high-speed A/D conversion, 10KHz high-speed sampling, reflecting parameter changes.
6. The built-in uninterruptible power storage can store three sets of waveforms and data, which can be archived, accessed, and analyzed.
7. Comes with a perpetual calendar, displaying date and time, and can automatically print.
8. The instrument is equipped with a high-speed printer that can print test results.

On load switch testerprecautions

1. Be sure to read the instructions carefully before using the instrument.
2. The operation of the instrument should have general knowledge of the use of electrical equipment or instruments.
3. It can work normally within the range of environmental temperature -5 ℃ to 40 ℃ and relative humidity ≤ 80%, but when used outdoors, it should be avoided from being exposed to rain and direct sunlight on the LCD screen.
4. The power switch must be turned on after all the leads are connected.
5. After the test is completed, the test line should be removed only after the discharge is finished.
6. Do not move the test cable clamp during the testing process.
7. If the current is small, two or more wires can be connected in parallel as one measurement, and unused wires should be short circuited to the black wire.
8. There is a protective grounding wire on the power socket. Please insert the plug into the three eye socket with grounding wire.

transformerLoad switch tester

Number, gear position, shifting direction, winding method, charging current and corresponding testing range, trigger resistance and other items can be set to facilitate response to different on-site situations.
Automatic gear switching: When automatic gear switching is selected, the charging current on the transformer does not stop, and there is no need to reset the parameters of the transformer. It can achieve continuous speed testing and save testing time;
Winding method: wiring method (this algorithm with fixed resistance must be correct); The △ type test is completed by testing one group according to the wiring displayed on the screen, and then testing the other group.
Take out the test cable clamp from the accessory box, and clamp the 8 red, green, yellow, and black cable clamps respectively at the high-voltage output terminal and neutral point of the transformer. Two cables of the same color are clamped at the same place, one of which is inserted into the current terminal (IA/IB/IC/IO), and the other end is inserted into the voltage terminal (UA/UB/UC/UO). Short circuit and ground the secondary output terminal of the transformer with a small clip. Then insert the test line into the instrument, check for errors, turn on the power switch of the instrument, and start the test. The following process will be displayed on the screen. When "Please switch the adapter switch" is displayed, please switch the switch and wait for the test results. When the switch is activated, the instrument tests the transition time and transition resistance.