Variable Frequency Resonant Test System for High Voltage Switchgear Testing
The SXBP Variable Frequency Resonant Test System is engineered to conduct AC withstand voltage tests on 10kV to 500kV electrical equipment in substations. By matching the inductive reactance of the reactor with the capacitive reactance of the test object at a specific frequency, the system achieves a high-quality factor (Q), enabling high-voltage output with remarkably low input power and ensuring minimal waveform distortion for safe and efficient testing.
Key Features
- High Efficiency & Compact Design: Utilizes reactive power compensation, drawing less than 1/10 of the test object's apparent power for reduced input requirements and compact, cost-effective design.
- Exceptional Output Waveform Quality: Series resonance circuit ensures nearly pure sinusoidal current with extremely low total harmonic distortion (THD).
- Inherent Fault Current Limitation: Natural short-circuit current limitation to less than 1/10 of pre-fault test current during insulation failures.
- Safe Arc Quenching & Voltage Recovery: Automatic arc extinction with controlled, gradual voltage recovery preventing dangerous spikes.
Applications
- Transformer Insulation Withstand Tests
- Commissioning & Maintenance Tests for MV/HV Cables
- Factory & On-site Tests for GIS Components
- Insulation Integrity Verification of Insulators/Bushings
- Accuracy & Safety Tests for Instrument Transformers
- Generators & Large Motors during Maintenance
- A Wide Range of High-Voltage Equipment
Common Configurations
| Model |
Test Object |
Main Configurations |
Frequency Range |
Test Voltage |
| SXBP-27/54/108-108 |
31500kVA/35KV Power Transformer |
AC power source: 10KW 1 unit
Exciting Transformer: 10KW 1 unit
Reactor: 27KV/1A 4 Units
Capacitive Voltage Divider |
20-300Hz |
120KV |
| SXBP-54/108/216-216 |
110KV Circuit breaker and busbar |
AC power source: 15KW 1 unit
Exciting Transformer: 15KW 1 unit
Reactor: 65KV/2A 4 Units
Capacitive Voltage Divider |
20-300Hz |
300KV |
| SXBP-65/130/260-520 |
110KV Circuit Breaker and busbar |
AC power source: 30KW 1 Unit
Exciting Transformer: 30KW 1 Unit
Reactor: 45KV/1A 6 Units
Capacitive Voltage Divider |
20-300Hz |
200KV |
| SXBP-45/90/135/180/270-270 |
110KV Insulator, switchgear, GIS |
AC power source: 20KW 1 unit
Exciting Transformer: 20KW 1 unit
Reactor: 45KV/1A Six Units
Capacitive Voltage Divider |
20-300Hz |
200KV |
| SXBP18/36/54 |
10KV (300mm²) cable 2000m |
AC power source: 5KW 1 Unit
Exciting Transformer: 5KW 1 Unit
Reactor: 27KV/1A 2 units or 18KV/1A 3 units
Capacitive Voltage Divider |
20-300Hz |
60KV |
Note: Model SXBP-27/54/108-108: SXBP is the model series, 27/54/108 indicates voltage of one reactor (kV)/voltage of two reactors in series connection/voltage of four reactors in series connection. 108 is the total capacity (KVA). For equipment with smaller capacity and lower voltage, additional reactors can be added to increase capacity, and more dividers to increase test voltage.
About Sansion Power Electric
Established in 2005, Sansion Power Electric brings over 20 years of experience in R&D, manufacturing, and marketing of power electrical testing products. Our solutions are widely used in power electric, railroad, energy conservation, environment protection, water conservancy, petrochemical industry, aerospace, and other fields.
Our facilities include R&D department, instruments manufacturing workshop, HV workshop, sample exhibition room, HV testing laboratory, quality control department, and more. With over 80 employees including 20 technical engineers, we maintain ISO9001 quality system certification and ensure all products conform to international IEC and Chinese state standards.
Certifications
Packing & Delivery
Customer Visit
Frequently Asked Questions
Q1: Is your company a sales company or a manufacturer?
A: Sansion Power Electric Co., Ltd. is an industrial and trade enterprise with its own factory, self-produced and self-sold. Founded in 2005, we have twenty years of production experience with reliable production lines, test rooms, and R&D centers.
Q2: Whether the goods are in stock, whether they can be customized, and how long the delivery time is?
A: We manufacture to order according to customer requirements using the latest technology. Delivery time is typically within 10 working days under normal circumstances.
Q3: Is the quality guaranteed?
A: We use imported components extensively and conduct three quality inspections before shipment. Export products are uniformly packed in non-fumigation wooden boxes.
Q4: What are the after-sales terms?
A: We offer free consulting service, one year warranty, and provide support through email communication, video calls, and on-site technical assistance to resolve any after-sales problems promptly.
Q5: What are the cooperative countries or regions?
A: Our products have been successfully exported to the United States, France, Brazil, Australia, Spain, Portugal, Oman, Russia, the Netherlands, Indonesia, Bangladesh, Saudi Arabia, Chile, Colombia, Panama, Malaysia, and other countries and regions.
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