Equipment Overview:

Experimental analysis of silicone rubber corona aging, research on AC/DC corona aging characteristics, composite insulator
material corona aging experimental equipment, organic insulation material corona aging test system, corona aging test box system,Suitable for scientific research institutions, the developed solid insulation material corona aging resistance testing system can

Equipment reference standards:

Refer to the American ASTM D2275-14 "Standard Test Method for Surface Voltage Resistance of Solid Electrical Insulation Materials
to Partial Discharge (Corona)" test standard.

Main components:

1) Corona generation device, 2) Measurement system, 3) Protection system, 4) Environmental control and monitoring system. The
actual device of the corona aging resistance testing system for solid insulation materials is shown in Figure 1 physical diagram

Main technical parameters:

(1) Corona generation device:
1. Using YDT-5/50 power frequency corona free test transformer, voltage range: 0-50KV
2. The voltage regulator automatically returns to zero after tripping;
3. Zero position closing, with automatic voltage rise and fall;
4. Imported leakage protector, reliable protection of personal safety;
5. Overcurrent protection, threshold and other safety protection functions;
6. Voltage and current display, measurement accuracy ± 0.2%, breakdown voltage maintained;
7. Experimental electrode: The electrode adopts the traditional needle plate mode to simulate the tip corona discharge in the
field. A stainless steel needle electrode with a curvature radius of 0.2mm is used as the upper electrode, and a copper plate
electrode is used as the lower electrode with a diameter of 30mm. The entire electrode system consists of 5 sets of needle plate
electrodes, as shown in Figure 3 (high-voltage oil immersed capacitors)
8. Electrode spacing: 100mm
9. Number of electrodes: 5
10. The distance between the needle tip electrode and the sample is adjustable, with an adjustable distance of 15mm
11. Rated capacity of high-voltage transformer: 5KVA;
12. Rated input/output voltage: 200V/50KV;
13. Rated input/output current: 20A/0.04A;
14. Control system: Adopting PLC control
15. Five speed options for boosting: 5V, 50V, 100V, 500V, 1000, 2000V can be set arbitrarily;
16. Equipped with leakage, overload, short circuit, breakdown, and high-voltage protection functions;
17. Instrument components: composed of an electric contact voltage regulator, control box, protective resistor, and electrode box;
18. This device can perform corona aging, voltage breakdown, and withstand voltage tests simultaneously;
19. Voltage breakdown equipped with stainless steel electrodes of grade 25 and grade 75, and a set of high-temperature testing
test bench
20. The corona aging test is equipped with 5 sets of needle electrodes, copper plate electrodes, and a set of corona aging sample
racks
21. A set of professional testing software
22. A set of branded computers equipped with a printer:
(2) Environmental control devices
1. Temperature sensor: Using Taiwan's P-T-100 high-precision sensor
2. Temperature and Humidity Control Method: Balanced Temperature and Humidity Control Method (BTHC) PID Intelligent Adjustment
3. Temperature range: -10 ℃~150 ℃ can be set
4. Humidity range 20-98% RH
5. Temperature and humidity control accuracy: ± 0.2 ℃; ± 2.5% RH
6. Uniformity inside the temperature and humidity chamber: ± 0.5 ℃~± 0.2 ℃; ± 4.0% RH
7. Controller resolution accuracy: ± 0.01% ℃; ± 1% R.H
8. Heating rate: ≥ 2.5 ° C/min
9. Cooling rate: average 1 ° C/min
10. Temperature deviation: ≤ ± 0.5 ℃ at -10~+99 ℃, ≤ ± 1.0 ℃ at 100~+150 ℃
11. Humidity deviation ± 2.5% RH (>75% RH), ± 4.0% RH (≤ 75% RH)
12. High quality cold-rolled steel plate outer shell material, electrostatic high-temperature baking paint inner box material,
stainless steel plate (SUS304)
13. Heat insulation material: high-density polyurethane foam+glass fiber
14. The observation window is a three-layer vacuum glass window
15. Lighting inside the box: Wide angle projection lighting equipment, double-layer doors with sealed doors
16. Space size inside the test box: 500 * 500 * 600mm
17. Insulation treatment shall be applied to the indoor walls of the test room, with a voltage resistance level of 50KV
(3) Dimensions of AC/DC corona aging testing machine:
Corona generation device size: 850 * 740 * 1500mm;
Environmental control device size: 700 * 1100 * 1700mm;
(4) Data acquisition system for AC/DC corona aging testing machine
1. Using Advantech's 16 bit PCI high-precision data acquisition card, the input signal voltage range is ± 5V or ± 10V, and the
sampling rate is 3MS/s. Can simultaneously collect multiple corona current and voltage signals, and send the measurement results
to the computer for processing.
2. The friendly LabView software interface can display the waveform of corona voltage; It can display the charge amount of
positive and negative half cycles of corona discharge current, as well as the trend of discharge energy over time.
3. After the experiment, the test data can be generated into a report and printed or saved.
(5) Main accessories of AC/DC corona aging testing machine
1. 1 corona generator
2. 1 environmental control device
3. One branded computer
4. A set of professional collection software
5. Put in one