Substation
A facility housing transformers, switchgear, and protection for voltage transformation and power routing.
A substation is a critical power system node where transformers, switchgear, protection, control, and busbars perform voltage transformation and power routing.
Types: transmission, distribution, collector (solar/wind), converter (HVDC), customer.
Key components: transformers, circuit breakers, disconnectors, CTs/VTs, relays, SCADA, RMUs.
QDTB supplies: power transformers, prefabricated substations, switchgear, cable branch boxes from planning through commissioning.
Related Products
Related Terms
Power Transformer
A large transformer (>10 MVA) used in transmission networks for stepping voltage between system levels.
Distribution Transformer
A transformer stepping down voltage from the distribution network (11-33 kV) to utilization voltage (400/230V) for end consumers.
Prefabricated Substation
A factory-assembled complete substation integrating transformer, switchgear, and protection for rapid installation.
Current Transformer
An instrument transformer producing secondary current proportional to primary current, for measurement and protection.
More Terms Starting with “S”
Step-Up/Step-Down Transformer
Transformers increasing (step-up) or decreasing (step-down) voltage levels based on the turns ratio.
Short-Circuit Impedance (%Zsc)
Transformer impedance measured with one winding short-circuited, determining fault current and regulation.
Shielded Winding
A transformer winding with shielding to reduce surge voltage stress and improve impulse distribution.
Solar Transformer
A transformer optimized for solar PV plants handling inverter harmonics and variable loading.
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