Profile:
Product Introduction: KDXB(L)-100kVA/100kV Mobile High-Voltage Withstand Test System
The KDXB(L)-100kVA/100kV Mobile High-Voltage Withstand Test System, developed by Wuhan Kaidi Zhengda Electric Co., Ltd., is a state-of-the-art, intelligent, and portable solution designed for high-voltage AC withstand testing in industrial and transportation applications.
This advanced test system is specifically engineered for on-site insulation testing of high-voltage cables and power systems in rail vehicles, including high-speed trains, EMUs (Electric Multiple Units), and metro trains. Utilizing industrial-frequency series resonance technology, the system delivers precise and stable high-voltage output up to 100kV AC, ensuring reliable evaluation of dielectric strength and insulation integrity.
Key Features:
- High Power & Voltage Output: Rated at 100kVA / 100kV / 1A, suitable for testing capacitive loads up to 0.031μF.
- Fully Automatic Operation: Supports auto-tuning, auto-pressurization, timed voltage holding, and automatic shutdown, significantly improving testing efficiency and safety.
- Dual Operation Modes: Offers both automatic and manual modes to meet diverse field requirements.
- Intelligent Touch Control: Equipped with a large-color touchscreen interface for real-time monitoring of voltage, current, frequency, and test duration.
- Comprehensive Protection: Features overvoltage, overcurrent, flashover, zero-voltage interlock, and emergency stop protections to ensure operator and equipment safety.
- Mobile & Modular Design: Split-body structure mounted on movable trolleys—easy to transport, assemble, and operate at job sites.
- Data Management: Stores up to 50 test records, supports USB data export, and optional printer integration for report generation.
- High Measurement Accuracy: 1.0-class precision with less than 0.5% waveform distortion, compliant with international standards including GB/T 16927, GB/T 311, and DL/T 596-2016.
Typical Applications:
- High-voltage cable testing in rail transit systems
- AC withstand voltage tests for transformers, switchgear, and GIS
- Field commissioning and preventive maintenance in power, oil & gas, and aerospace industries
Backed by one-year warranty and lifelong technical support, the KDXB(L)-100kVA/100kV system combines safety, mobility, and smart automation, making it an ideal choice for demanding high-voltage testing environments.
Parameter:
Main technical parameters and functions of the system
1. Rated capacity: 100kVA;
2. Rated voltage: 100kV
3. Rated current: 1A
4. Working frequency: 50Hz power frequency;
5. Distortion rate of output voltage waveform: ≤ 0.5%;
6. Allowable continuous working time: 60 minutes under rated load;
7. Temperature rise ≤ 80K after continuous operation for 60 minutes under rated load;
8. Quality factor of the device itself: Q ≥ 10;
9. System measurement accuracy: effective value of 1.0 level;
10. Input power supply: three-phase 380V voltage, frequency 50Hz;
11. Provide overcurrent, overvoltage, and flashover protection for the test sample;
12. Environmental temperature: -150C-400C, relative humidity: ≤ 90% RH, altitude ≤ 1000 meters;
Test power supply and L/Cx relationship table
Test sample capacitance range: 0.01~0.031uF
Adjustable range of reactor: 326H~1014H
Note: Cx is the capacitance of the test sample
AC power frequency withstand voltage test: use a series resonance test device to conduct cable AC withstand voltage test;
Usage of Reactor: One Adjustable Reactor
Rated capacity: 100kVA
Rated voltage: 100kV
Rated current: 1A
Sample capacitance range (calculated value): 0.01~0.031 μ F
Corresponding inductance: 326H~1014H
System configuration and its parameters
1. Motivate transformer JLB-10kVA/10kV/0.4kV: 1 unit
a) Rated capacity: 10kVA;
b) Input voltage: 400V, single-phase;
c) Output voltage: 10kV
d) Structure: Dry type
e) Weight: Approximately 70kg;
f) After 60 minutes of rated operation, the temperature rise of the coil to the air is ≤ 80K;
2. Industrial frequency power supply CHXB-F -10kW/380V: 1 unit
a) Rated output capacity: 10kW
b) Working power supply: 380 ± 10% V (three-phase), power frequency
c) Output voltage: 0-400V, single-phase,
d) Rated input current: 25A
e) Rated output current: 25A
f) Voltage resolution: 0.01kV
g) Voltage measurement accuracy: 1.5%
h) Running time: 60 minutes continuously at rated capacity
i) The maximum temperature of the component during continuous operation for 60 minutes at rated capacity is ≤ 80K;
j) Noise level: ≤ 50dB
k) Can achieve the following functions
l) 1) The placement of the power supply is vertical and horizontal, which is particularly suitable for on-site operation and observation;
m) 2) The interior and exterior are equipped with special shock-absorbing rubber support feet and protective aluminum boxes, which can effectively reduce the shaking and impact during transportation and lifting. Ensuring the long-term stability and reliability of the power supply;
n) 3) Parameter display: Touch or external mouse large screen LCD interface display system
o) Can display resonant voltage (i.e. the target voltage set before the test), low voltage, low voltage current, withstand voltage time, overvoltage protection, overcurrent protection, and flashover protection;
p) 4) Parameter setting: The large touch LCD color screen directly completes the setting of various parameters, including starting voltage, stage boost and timing, voltage divider ratio, excitation ratio, overvoltage protection, overcurrent protection, flashover protection, test mode, etc;
q) 5) Test mode: Touch screen operation, with three operating states: fully automatic, semi-automatic, and manual. Capable of boosting, tuning (including manual and automatic), segmented boosting and timing, operating status, mode switching, fault prompt functions, etc;
r) 6) Protection function and information prompt: It has multiple protection functions such as high voltage overvoltage protection, low voltage overcurrent protection, overcurrent protection, as well as detuning protection, zero position, flashover protection, emergency stop, undervoltage protection, etc;
s) 7) Data storage function: saving test results (manually saved), printing, uploading, reviewing, etc
t) ① Test results: After the manual or automatic test is completed, the detailed parameters of the test can be displayed in the test results interface. When the test is interrupted, the interruption status can be prompted. The parameters can be saved in a non-volatile memory that can hold 50 test records;
u) ② Data query: The saved test result data can be displayed on the screen, and it also has a USB interface, which can output and print the data or use the printer carried by the device to print; (The printer is optional for the customer, and if the customer has this requirement, it must be specifically stated in the contract)
v) 8) Automatic voltage stabilization function: The system automatically tracks and maintains a stable test voltage based on the set test voltage or manual boost result, with a voltage stability of up to 1.0%;
w) P) Weight: approximately 25kg;
3. Adjustable Reactor CHXB (TL) -100kVA/100kV: 1 unit
a) Rated capacity: 100kVA;
b) Rated voltage: 100kV;
c) Rated current: 1A;
d) Adjustable inductance: 326H~1014H;
e) Quality factor: Q ≥ 20;
f) Structure: Dry type;
g) Weight: Approximately 300kg;
4. Voltage divider FRC-100kV/1000pF: 1 unit
a) Rated voltage: 100kV
b) Measurement accuracy: AC effective value of 1.0 level;
c) Dielectric loss: Tg σ ≤ 0.5%;
d) Voltage division ratio: 1500:1,
e) Voltage division ratio error: ≤ 1.0%;
f) Weight: approximately 25kg;
5. Compensation capacitor BC-100kV/0.01uF: 1 unit
g) Rated voltage: 100kV
h) Capacity: 0.01uF
i) Weight: 25kg
