In the wave of rapid construction of new power systems and intelligent distribution networks, factory testing, type testing, and insulation performance verification of high-voltage electrical equipment have become core links for power equipment manufacturers to control product quality, meet State Grid connection standards, and avoid potential safety hazards in power grid operation. As a leading domestic manufacturer of professional high-voltage power testing equipment , Shanghai DEMIKS Power Technology Co., Ltd. (DEMIKS POWER, website: www.demikspower.com) has long focused on the fields of high-voltage insulation testing and electrical performance testing. With its mature hardware equipment system, practical industry solutions, and one-stop closed-loop technical services, it provides in-depth services to many leading power industry manufacturers.
Recently, our deep partner, Beijing Haochuang Ruitong Power Equipment Co., Ltd., has successfully implemented a large-scale quality inspection project, and the two parties have reached a long-term and stable strategic supply cooperation agreement. Shanghai DEMIKS continues to provide Beijing Haochuang Ruitong with customized high-voltage power testing equipment for its entire production line and type testing laboratory, helping this national-level specialized and innovative small giant and Shenzhen Stock Exchange-listed smart power distribution leader to complete the factory testing and third-party type testing of its entire series of power distribution products.
About the partner company: Beijing Haochuang Ruitong Power Equipment Co., Ltd.
Beijing Haochuang Ruitong Power Equipment Co., Ltd. is a leading high-tech enterprise in the domestic intelligent power distribution network sector. With over a decade of experience in the R&D, production, and sales of intelligent power distribution equipment, the company focuses on manufacturing core equipment for the distribution network side of new power systems. Its core products cover: intelligent integrated primary and secondary ring main units, environmentally friendly gas-insulated ring main units, intelligent pole-mounted switches, high and low voltage switchgear, prefabricated substations, cable branch boxes, intelligent distribution transformer terminals, and distribution line fault indicators , among other integrated primary and secondary power distribution equipment. These products are widely used in power distribution network upgrades in various provinces and cities of the State Grid and Southern Power Grid, power distribution projects in industrial parks, and power distribution projects supporting new energy power plants. The company enjoys a high level of industry recognition in the domestic intelligent power distribution equipment manufacturing field.
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These high-voltage/high and low voltage power distribution switchgear and transformer equipment have stringent national standards and mandatory requirements for electrical insulation strength, lightning impulse resistance, and partial discharge indicators. All products must undergo factory quality inspection and third-party type testing, and must be verified by professional and compliant high-voltage power testing equipment. This is the core reason why Haichuang Ruitong chose to establish a long-term partnership with DEMIKS, a professional testing equipment manufacturer.
Compatible with Haochuang Ruitong production lines | DEMIKS core supply testing equipment list
In response to Beijing Haochuang Ruitong’s factory testing, type testing, and laboratory testing needs for all categories of intelligent power distribution equipment, Shanghai DEMIKS can supply high-voltage power testing equipment in bulk across its entire product line. This equipment precisely matches national testing standards for ring main units, prefabricated substations, pole-mounted switches, and high and low voltage switchgear. The core equipment categories are as follows:
- Insulation withstand voltage testing series (core essential equipment)
We conduct power frequency withstand voltage, DC withstand voltage, and insulation resistance tests on Haochuang Ruitong’s high and low voltage switchgear, ring main units, transformer cabinets, insulating bushings, and switch insulation accessories. Our complete set of frequency conversion series resonant withstand voltage test equipment, DC high voltage generator, power frequency test transformer, insulation resistance tester , and high voltage dielectric loss tester perfectly meet the factory insulation screening and type withstand voltage test standards for power distribution equipment, and identify potential hazards such as insulation breakdown, creepage, and leakage.
Insulation Withstand Voltage Test
Power-frequency Withstand Voltage and DC Withstand Voltage Tests: Evaluate the insulation strength of composite bushings and internal vacuum interrupters. Supporting equipment: variable-frequency series resonance device, power-frequency test transformer, DC high-voltage generator.
For outdoor power distribution equipment such as outdoor intelligent pole-mounted switches, ring main units, and prefabricated substations, our fully automatic lightning impulse voltage generator can simulate the over–voltage conditions of the power grid lightning strike. It can complete standard full-wave and chopped-wave lightning impulse tests to verify the lightning over-voltage resistance of outdoor power distribution equipment and meet the mandatory testing requirements for outdoor equipment connected to the State Grid.
Simulate lightning over-voltage of power grid to evaluate the impulse withstand capability of components and bus bar insulation inside the cabinet. Supporting Equipment: Automatic Lightning Impulse Voltage Generator
For integrated primary and secondary power distribution equipment and gas-insulated ring main units with sealed cavities, we conduct micro-discharge detection. Our ultra-high frequency partial discharge detector and fully automatic multi-channel partial discharge test system accurately capture hidden insulation defects inside the equipment, preventing internal discharge burn-out faults in power distribution equipment during long-term grid-connected operation, and are compatible with the high-standard partial discharge acceptance specifications of the power industry. Detect hidden internal insulation bubbles and discharge defects inside gas-filled cabinets, solid-sealed components and bus-bar connectors (mandatory indicators stipulated by State Grid)Supporting equipment: Multi-channel Partial Discharge Test System
- Other supporting electrical testing and experimental equipment
In addition, DEMIKS can provide a complete set of auxiliary testing equipment, including a transformer comprehensive testing system, a high-voltage switch mechanical characteristic tester, a loop resistance tester, and a grounding resistance testing device, covering the entire process of Haochuang Ruitong’s workshop from semi-finished product sampling inspection to full-item factory inspection of finished products.
Beyond equipment supply | DEMIKS provides one-stop closed-loop value-added technology services
Unlike ordinary equipment suppliers, Shanghai DEMIKS Power Technology Co. LTD, as a manufacturer of full-process high-voltage testing equipment, provides power equipment manufacturers with a full-chain value-added service including equipment installation, after-sales service, and technical support . For Haochuang Ruitong and other similar power distribution manufacturing companies across the industry, it provides the following standardized supporting services:
- On-site installation and commissioning : Professional engineers will provide on-site installation, wiring and commissioning, and range calibration nationwide to ensure the equipment is in place, connected and calibrated to the customer’s existing laboratory conditions and put into production quickly.
- On-site practical training : One-on-one on-site practical training and teaching of safe operation procedures are provided for quality inspectors and laboratory engineers, and the special test operation procedures of the power distribution industry are explained.
- Specialized technical exchanges : Free specialized technical seminars on industry standard interpretation, type test scheme customization, and difficult testing issues of power distribution equipment;
- Lifetime after-sales maintenance : lifetime technical consultation for equipment, regular on-site inspections, expedited fault repair, equipment range calibration, and upgrade and renovation services for old equipment.
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On-site comissioning and training
Choose DEMIKS POWER: The preferred high-voltage testing equipment partner for power distribution equipment manufacturers
Through in-depth cooperation with Beijing Haochuang Ruitong Power, a leading listed company, Shanghai DEMIKS Power Equipment has been further validated to be fully compatible with the quality inspection conditions, State Grid acceptance standards, and large-scale mass production testing needs of mainstream domestic intelligent power distribution equipment manufacturers.
Whether you are a manufacturer of complete power systems, producing ring main units, prefabricated substations, high-voltage switches, and distribution terminals, or a third-party power testing laboratory or power supply bureau testing center, if you need to conduct high-voltage electrical tests such as insulation withstand voltage, lightning impulse, and partial discharge, Shanghai DEMIKS POWER is the preferred choice . Our full range of equipment meets the acceptance standards of leading large-scale power distribution companies, with readily available bulk supply and nationwide closed-loop technical services.
✅ Direct from the factory | ✅ Verified by benchmark projects | ✅ Customized for all work conditions | ✅ Nationwide on-site service
For more information on high-voltage power testing equipment, please visit our website: www.demikspower.com
