High Voltage AC Dielectric Test System for Transformer Cable Insulation Strength Testing
The power-frequency withstand voltage test device is designed to verify the insulation strength and withstand capability of high-voltage electrical equipment. It is widely applied in power utilities, industrial and mining facilities, laboratories, and research institutions. The system features a modular two-part configuration, integrating a control unit for test operation and regulation with a high-voltage boost unit for generating the required test voltage.
Models:
- SXTC‑I Pointer‑type Control Box
- SXTC‑II Digital Display Control Box
- SXTC‑III Manual Control Console
- SXTC‑IV Electric Control Console
- SXTC‑V Intelligent Control Console
- SXTC‑VI Industrial PC Control Console
| Model | Capacity (kVA) | Power Supply Voltage (V) | Control Mode | Printing Function | Display |
|---|---|---|---|---|---|
| SXTC‑I | 0.5‑50 | 220/380 | Manual | — | Pointer / Digital Display |
| SXTC‑II | 0.5‑500 (Voltage regulator externally fitted for ≥100kVA) |
220/380 | Electric | — | Pointer / Digital Display |
| SXTC‑III | 0.5‑500 (Voltage regulator externally fitted for ≥100kVA) |
220/380 | Full‑automatic | ✔ | Chinese display, USB interface (optional) |
| SXTC‑IV | 0.5‑500 (Voltage regulator externally fitted for ≥100kVA) |
220/380 | Industrial PC Control | ✔ | Computer Display |
| Model | Insulation Type | Voltage Level | Capacity Range | Control Mode | Remarks |
|---|---|---|---|---|---|
| YDQ(Z) | SF6 Gas | Single‑unit: 50‑500kV; Cascade: 200‑800kV |
5‑500kVA | Manual / Auto | Matched with intelligent control box/console for intelligent control |
| YDJ(Z) | Transformer Oil | Single‑unit: 50‑200kV; Cascade: 200‑800kV |
2‑300kVA | Manual / Auto | Matched with intelligent control box/console for intelligent control |
| GTB(Z) | Epoxy Resin | Single‑unit: 50‑100kV; Cascade: 100‑300kV |
2‑50kVA | Manual / Auto | Matched with intelligent control box/console for intelligent control |
- Flexible Configuration & Broad Compatibility — The control and high-voltage boosting sections can be freely matched to meet different testing voltage and capacity requirements.
- Robust and Reliable Construction — Optimized engineering design and a well-structured mechanical layout ensure dependable operation and long service life.
- AC/DC Dual-Mode Testing — One system supports both AC and DC withstand voltage tests while maintaining a compact footprint for easier transportation and on-site deployment.
- Scalable High-Voltage Output — The equipment can operate independently as a single unit or be connected in cascade when higher test voltages are required.
- Versatile Control Solutions — Available control configurations include manual operation, motorized control, fully automatic operation, and industrial computer-based control.
- Convenient Data Management — Depending on the configuration, the system can support test result printing, USB data transfer, PC communication, and a bilingual Chinese-English operating interface.
- Multiple High-Voltage Transformer Options — Oil-filled, epoxy resin dry-type, SF₆ gas-insulated, and corona-free designs are available to accommodate different test environments and application requirements
Q1. What are the main components of the test system?
A: The system consists of two main sections:
• SXTC Series Control Unit — provides voltage regulation, measurement, control and protection.
• YD Series Test Transformer — steps up the input voltage to the required high-voltage test level.
The control section and boosting section can be selected and combined according to the customer's testing requirements.
Q2. What types of SXTC control units are available?
A: The SXTC series provides several control configurations, including pointer-type, digital display, manual control console, electric control console, intelligent control console and industrial PC control. The available configuration depends on the required capacity and level of automation.
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