Goldhome Successfully Completes Acceptance of 20800kVA/260kV PD-Free Parallel Resonant Test System for Korean Customer
November 5, 2026 | Goldhome Company News
On November 5, 2026, a customer from South Korea visited Wuhan Goldhome Hipot Electrical Co., Ltd. to conduct the inspection and acceptance of a 20800kVA/260kV PD-free parallel resonant test system.
During the acceptance process, the customer inspected the equipment configuration and participated in the relevant performance verification tests. The system achieved a partial discharge (PD) level of less than 1 pC during testing, demonstrating excellent low-background-noise performance. The test results met the customer's expectations, and the equipment received positive feedback from the customer.
This successful acceptance highlights Goldhome's technical capabilities in large-capacity high-voltage resonant testing systems and PD-free testing solutions.
20800kVA/260kV PD-Free Parallel Resonant Test System
The 20800kVA/260kV parallel resonant test system is designed for high-voltage AC withstand voltage testing of electrical equipment with large capacitive loads.
The system adopts variable frequency series resonant technology to generate the required high-voltage AC output. By utilizing the resonance principle, it can significantly reduce the power supply capacity required for testing large capacitive loads compared with conventional direct testing methods.
The PD-free design focuses on reducing internal partial discharge and background interference, providing a suitable testing environment for high-voltage insulation performance evaluation and partial discharge measurement.
Typical applications include:
High-voltage power cables
Gas-insulated switchgear (GIS)
Power transformers
High-voltage electrical equipment and insulation systems
Factory acceptance and insulation performance testing
The system is designed to support high-voltage testing requirements in power equipment manufacturing facilities, testing laboratories, and other specialized testing environments.

Partial Discharge Level Achieves Less Than 1 pC
Partial discharge measurement is an important indicator in evaluating the insulation condition of high-voltage electrical equipment.
During the acceptance testing, the 20800kVA/260kV PD-free resonant test system achieved a measured partial discharge level of less than 1 pC.
<badge color="success">PD Level Below 1 pC</badge>
This result demonstrates the system's low partial discharge background and its ability to provide a low-interference environment for high-voltage testing.
For applications requiring highly sensitive partial discharge measurements, reducing background interference is particularly important. A low PD background helps improve measurement conditions and supports the identification of insulation defects in the equipment under test.
The achievement of less than 1 pC during the acceptance process was an important highlight of this project and received positive recognition from the Korean customer.

Korean Customer Gives Positive Feedback During Acceptance
Throughout the acceptance process, Goldhome's technical team worked closely with the customer to review the system configuration, operating functions, and relevant test performance.
The customer inspected the equipment and observed the testing process. Following the successful completion of the acceptance activities, the system's partial discharge performance and overall configuration received positive feedback.
Customer acceptance is an important part of Goldhome's equipment delivery process. It provides an opportunity to verify technical requirements, demonstrate equipment performance, and establish confidence before delivery.
The successful acceptance also reflects the close technical communication and cooperation between Goldhome and its Korean customer.
Goldhome's Expertise in PD-Free High-Voltage Testing Solutions
Manufacturing large-capacity high-voltage resonant test systems with low partial discharge backgrounds requires careful attention to component selection, insulation design, structural layout, shielding, and overall system integration.
Goldhome continues to focus on these technical aspects to provide high-voltage testing equipment that meets different customer requirements.
Wuhan Goldhome Hipot Electrical Co., Ltd. specializes in high-voltage electrical testing equipment and customized testing solutions. Its product range includes:
PD-free AC resonant test systems
Variable frequency series resonant test systems
Lightning impulse test systems
Partial discharge measurement systems
Transformer testing equipment
High-voltage withstand test equipment
The successful acceptance of the 20800kVA/260kV PD-free parallel resonant test system in South Korea marks another important milestone for Goldhome in the international high-voltage testing market.
Goldhome will continue to improve its manufacturing capabilities, testing technologies, and customer service to provide reliable high-voltage testing solutions for customers worldwide.
About Goldhome
Wuhan Goldhome Hipot Electrical Co., Ltd. specializes in high-voltage electrical testing equipment and solutions for power utilities, electrical equipment manufacturers, engineering contractors, and testing laboratories.
Website: www.goldhomehipot.com
WhatsApp:+8618971538425




























