Gas-Insulated Transformer
A transformer using SF6 or alternative gases as insulation instead of oil for fire safety and compact design.
A gas-insulated transformer uses pressurized gas (SF6 or eco-friendly alternatives) instead of oil for insulation and cooling.
Advantages: zero fire risk, no contamination, compact footprint, suitable for underground/indoor. Used in subways, offshore, sensitive areas.
SF6 concerns (high GWP) drive alternative gases (fluoroketones). Modern designs maintain comparable dielectric performance.
QDTB can supply GIT solutions where oil-free is mandated. For most applications, dry-type transformers offer practical oil-free alternatives.
Related Products
Related Terms
Dry-Type Transformer
A transformer using air or solid insulation instead of liquid, ideal for indoor applications with fire safety priority.
Dielectric Strength
The maximum electric field an insulating material can withstand before breakdown, measured in kV/mm.
Distribution Transformer
A transformer stepping down voltage from the distribution network (11-33 kV) to utilization voltage (400/230V) for end consumers.
More Terms Starting with “G”
Generator Step-Up Transformer (GSU)
A large power transformer stepping up generator voltage (11-25 kV) to transmission levels for grid connection.
Grounding Transformer
A transformer providing a neutral point for grounding in ungrounded or delta-connected systems.
GB Standards
Chinese national standards (Guobiao) for transformers including GB 1094, equivalent to IEC 60076 with local adaptations.
More in “Transformer Types”
Autotransformer
A transformer with a single winding acting as both primary and secondary, providing voltage conversion through electromagnetic induction and direct electrical connection.
Amorphous Alloy Transformer
A distribution transformer using amorphous metal core material achieving 60-70% lower no-load losses than conventional silicon steel cores.
Box-Type Substation (Prefabricated)
A factory-assembled compact substation integrating transformer, HV/LV switchgear, and protection in a weatherproof enclosure.
Need help with transformer selection?
QDTB engineers can help you choose the right equipment based on your specific requirements