Energy-efficient transformers: Substations often use energy-efficient transformers that are designed to minimize energy losses. These transformers are typically made of high-quality materials and incorporate advanced insulation and cooling systems that help to improve efficiency and reduce energy consumption.
Renewable energy sources: Many substations are designed to incorporate renewable energy sources such as wind and solar power. By using these sources, substations can reduce their reliance on traditional fossil fuels and help to reduce energy consumption and greenhouse gas emissions.
Advanced monitoring systems: Substations often incorporate advanced monitoring and control systems that allow for real-time monitoring of the power distribution system. By identifying areas where energy consumption is high or inefficiencies are present, these systems can help to optimize energy usage and reduce waste.
Energy storage systems: Some substations are equipped with energy storage systems that allow them to store excess energy during periods of low demand. This stored energy can then be used during periods of high demand, helping to reduce energy consumption and improve overall system efficiency.
Smart grid technologies: Substations can be part of a smart grid system, which uses advanced technologies to optimize energy usage and reduce waste. For example, smart grid systems can allow substations to communicate with other components of the power distribution system, such as homes and businesses, to manage energy usage more efficiently.

Specification

Rated Voltage	12/17.5/24kV	36kV
Standard applicable	IEC 62271 – 202 (IEC 61330)	IEC 62271 – 202 (IEC 61330)
Normal ambient temperature	40 ° C	40 ° C
Maximum ambient temperature	50 ° C	50 ° C
Enclosure construction	Modular	Modular
Ventilation	Natural	Natural
Temperature class (Std.)	K 10	K 10
MV and LV compartment	IP 54	IP 54
Transformer compartment	IP 23	IP 23
Rated voltage (kV)	12/24kV	36kV
Power frequency (kV rms)	28/50	70
Impulse (kV p)	75/125	170
Rated frequency (Hz)	50/60	50/60
Rated normal current (A)	630	630
Breaking capacity (A)	630	630
Making capacity (kA)	52.5 / 40	50
Rated normal current (A)	630	630
Breaking capacity (kA)	21/16	20
Making capacity (kA)	52.5 / 40	50
Rated power (kVA) – oil type	2500	2000
Rated power (kVA) – Dry type	2500	2000
Rated secondary voltage (V)	433	433
Vector group	Dyn 11	Dyn 11
Tapping range	+ 5 in steps of 2.5%	+ 5 in steps of 2.5%
IP	Yes	Yes
Internal arc	Yes	Yes
Enclosure class	Yes	Yes
Impact test	Yes	Yes
Short circuit test on earthing	Yes	Yes