Standards:

Applications:

Product Information:

Compliance Standards

GB/T 1408-2006 — Test Method for Electric Strength of Insulating Materials

GB/T 1695-2005 — Test Method for Power Frequency Breakdown Strength and Withstand Voltage Strength of Vulcanized Rubber

GB/T 3333 — Test Method for Power Frequency Voltage Breakdown of Cable Paper

HG/T 3330 — Test Method for Breakdown Strength of Insulating Varnish Films

GB/T 12656 — Test Method for Power Frequency Voltage Breakdown of Capacitor Paper

ASTM D149 — Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

Scope of Application and Functions

This instrument is mainly used for testing the breakdown strength and withstand voltage performance of solid insulating materials under power frequency voltage or DC voltage conditions.

Applicable materials include: plastics, rubber, laminated materials, films, resins, mica, ceramics, glass, insulating varnishes, and various insulating components.

System Configuration

Control Module

This instrument is controlled by PC host software and is a new third-generation dielectric strength testing device independently developed by our company. The core control system is based on Siemens PLC control. The data acquisition section is completed by a Siemens digital integrated module, and communication between the system and the computer is carried out via an opto-isolated data cable, effectively eliminating electromagnetic interference during the testing process. Voltage and current measurements are performed using high-precision sensors.

Voltage Regulation Module

This module is mainly used for voltage regulation and allows adjustment of the voltage ramp rate. It is equipped with high-voltage zero-return limit and high-voltage step-up limit functions. The main hardware components include a voltage regulator and a motor system.

The software is user-friendly and capable of real-time display of the voltage rise curve and leakage current dynamic curve. The voltage ramp rate is continuously adjustable, allowing users to set the desired ramp speed to achieve smooth and accurate voltage increase. The system automatically stops testing after breakdown occurs, automatically records test results, displays test data, and provides accurate judgment. Test data can also be saved, analyzed, and printed.

High Voltage Module

This module primarily uses a high-voltage generator to increase the voltage from a low level according to a preset ramp rate. The core components consist mainly of a transformer and supporting anti-interference accessories.

Test Module

This section mainly consists of supporting test electrodes, a test oil tank, and a test support frame. It can also be operated in a high-temperature test environment according to user requirements.

Software Functions

01. Software Platform

WINDOWS-based operating platform with an intuitive user interface for convenient operation.

02. Curve Display

Real-time dynamic display of test curves during the testing process.

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Professional Excellence Comes from Focus

Carefully manufacturing every instrument and taking responsibility for product quality to ensure worry-free use.

03. Data Export

Test results can be exported to Excel.

04. Test Report

Users can customize report names and print test reports.

05. Test Modes

Flexible selection between DC testing and AC testing.

06. Test Methods

Users can select among:

Breakdown Voltage Test

Withstand Voltage Test

Gradient Test

07. Parameter Settings

Flexible parameter configuration according to different test modes and methods.

08. Sample Settings

Flexible configuration of specimen parameters according to different testing standards.

09. Continuous Operation

During continuous testing, users can terminate the current test directly in the software and proceed to the next test.

10. Test Status Monitoring

Real-time display of testing status, including:

Safety door status

Voltage ramp indication

Zero-return reset indication

Other system operation indicators

Technical Requirements

No.	Item	Parameters	Remarks
	Equipment Model	DDJ-10KV / DDJ-20KV / DDJ-50KV
01	Electrical Capacity	1 KVA / 2 KVA / 3 KVA
02	Output Voltage	AC/DC–10KV / AC/DC–20KV / AC/DC–50KV
03	Input Voltage	AC–220V / 50Hz
04	Voltage Ramp Rate	0.1 KV/s–5 KV/s	Manually Adjustable
05	Voltage Rise Mode	Constant Ramp / Step Ramp / Withstand Voltage Test
06	Breakdown Stop Condition	Voltage Trigger Stop / Current Trigger Stop
07	Test Medium	Air Test / Oil Bath Test / High-Temperature Test	High Temperature Optional
08	Data Acquisition	Photoelectric Isolation Communication, Strong Anti-Interference Capability
09	Voltage Accuracy	≤1.5%
10	Leakage Current	0–100 mA	Sensor Range
11	Voltage Sensor	0–100 V	Sensor Range
12	Electrode Specification	Sheet Electrodes: φ25 mm × 2. φ75 mm × 1	Custom Electrode Available
13	Discharge Method	Automatic Electric Discharge
14	Electrode Movement	Manual Placement / Automatic Lifting	Automatic Lifting Optional
15	Test Oil Tank	L × W × H: 300 × 150 × 200 mm	Equipped with Floating Support for Easy Sample Replacement
16	Test Illumination	Built-in Lighting System
17	Exhaust System	Built-in Exhaust Fan
18	Test Indication	Integrated Multi-Color Tower Light for Test Status Indication
19	Test Door	Pneumatic Test Door / Sliding Door	Sliding Door for Automatic Electrode Lifting Version
20	Safety Protection	Overvoltage Protection / Overcurrent Protection / Short Circuit Protection / Leakage Protection
21	Operating Environment	Room Temperature, Humidity ≤65%
22	Main Unit Dimensions	L × W × H: 1000 × 700 × 1400 mm
23	Test Chamber Dimensions	L × W × H: 1000 × 500 × 550 mm
24	Observation Window	Glass Window Size: 800 × 300 mm	Large Viewing Window for Easy Observation
25	Equipment Weight	Approx. 150 kg