Published by Hebei Hozee Electric Co., Ltd.
About Us
Hebei Hozee Electric Co., Ltd. is a professional manufacturer specializing in dry type transformers, oil-immersed transformers, single-phase transformers, and supporting core accessories such as laminated iron cores and single-phase wound cores. We provide reliable customized transformer solutions ranging from small-capacity 50kva dry type transformer products to large-scale
2000KVA Dry Type Transformer equipment for global industrial and commercial power projects.
Overview of Dry Type Transformer Maintenance
Dry type transformers are widely used in indoor power distribution, commercial buildings, industrial workshops and fire-proof key areas due to their fireproof, explosion-proof and environmental advantages. Unlike oil-immersed transformers, dry type transformers require no insulating oil, so their maintenance work focuses on dust cleaning, temperature monitoring, insulation inspection and operational condition checking. Whether you adopt a compact 50kva dry type transformer for civil power distribution or a heavy-duty 2000KVA Dry Type Transformer for industrial heavy-load operation, standardized daily maintenance is essential to extend service life, stabilize output voltage and reduce failure rates.
Key Daily Maintenance Steps
1. Regular Dust and Foreign Matter Cleaning
Dust accumulation is the main cause of poor heat dissipation and insulation degradation for dry type transformers. Long-term accumulated dust will block the air duct, cause local overheating, and even trigger insulation breakdown. It is necessary to regularly clean the surface of coils, iron cores and cooling wind channels with dry compressed air or soft brushes. For small-capacity equipment such as the 50kva dry type transformer, quarterly dust cleaning is sufficient for conventional indoor environments. For high-power equipment like the 2000KVA Dry Type Transformer running in dusty industrial workshops, monthly deep cleaning is recommended to ensure unobstructed heat dissipation.
2. Real-Time Temperature Monitoring
Temperature is the most critical operating parameter for dry type transformers. Overload operation and poor ventilation will cause excessive coil temperature, aging insulation and burnt windings. All Hozee dry type transformers are equipped with intelligent temperature sensing devices. Operators need to regularly check the temperature display data, ensure the operating temperature is within the rated range, and verify the normal operation of cooling fans. Especially for the 2000KVA Dry Type Transformer with long-term full-load operation, real-time temperature tracking is required to avoid high-temperature overload damage. For the 50kva dry type transformer with intermittent operation, regular temperature spot checks can effectively prevent hidden dangers caused by abnormal heat accumulation.
3. Insulation Performance Inspection
Regularly use a megohmmeter to measure the insulation resistance between high and low voltage windings and between windings and the ground. Humidity, dust and long-term operation will reduce insulation performance. It is required to conduct a comprehensive insulation test every six months. If the insulation value is lower than the standard range, stop the machine for dehumidification and dust removal treatment to ensure safe and stable operation.
4. Check Wiring and Fasteners
Long-term vibration during operation may cause loose wiring terminals and fasteners. Operators need to regularly check whether the cable joints are loose, discolored or overheated, and tighten the fixed bolts in time. Ensure all connection parts are in good contact to avoid heating and sparking faults caused by poor contact.
5. Environment and Operational Condition Check
Dry type transformers should be placed in a dry, ventilated, dust-free and corrosion-free environment. Avoid long-term operation in high humidity and high temperature environments. Regularly check the surrounding ventilation conditions, ensure no sundries stacking around the equipment, and reserve enough heat dissipation space. At the same time, monitor the load operation status, prohibit long-term overload operation, and match the load reasonably according to the transformer capacity.
Regular Maintenance Cycle Summary
Daily inspection: Check operating temperature, sound and surface cleanliness; Quarterly maintenance: Dust cleaning and terminal fastening; Semi-annual maintenance: Insulation resistance test and fan function inspection; Annual maintenance: Comprehensive performance detection and overall equipment debugging.
Hebei Hozee Electric Co., Ltd. supplies high-quality 50kva dry type transformer, 2000KVA Dry Type Transformer, oil-immersed transformers, single-phase transformers and customized laminated iron cores & single-phase wound cores. All our products are strictly tested before delivery, with stable performance and low failure rate. We provide one-stop product supply and technical after-sales services for global customers.