The European Box Type Substation is a prefabricated modular power distribution unit that integrates a medium-voltage switchgear, distribution transformer, and low-voltage control cabinet into a single, compact, weatherproof enclosure. Developed with European engineering standards, it provides a highly reliable and safe solution for 12–24kV power distribution applications.

 

Our technical configuration balances international standards with the conditions in Indonesia, ensuring optimal performance and longevity. This substation combines medium-voltage switchgear, a transformer, and low-voltage panels within a weatherproof, factory-assembled enclosure. It offers a simplified yet advanced solution for distributing power efficiently and safely in various sectors.

Key Technical Specifications

 

Parameter			Nilai
High Voltage Part	Rated voltage	kV	12
	Rated frequency	Hz	50
	Rated current of main busbar	A	630
	1min power frequency withstand voltage (to earth and between phases/disconnecting fracture)	kV	42/48
	Lightning impulse withstand voltage (to earth and between phases/disconnecting fracture)	kV	75/85
	Rated short time withstand current	kA/s	25/2
	Rated peak withstand current	kA	63
	Rated short time making current	kA	50
	Rated transfer current	A	1500
	Breaking current of fuse	kA	31.5-40
Low Voltage Part	Rated voltage	V	400
	Rated current of main circuit	A	100-4000
	Rated limiting short circuit breaking ability	kA	80
	Rated operating short circuit breaking ability	kA	50(65)
	Rated short time withstand current	kA/1s	50(65)
Low Voltage Part	Branch current, compensating capacity		According to requirements of users
Transformer	Rated capacity	kVA	30-2000
	Impedance voltage	%	4 | 4.5
	Tapping range	%	±2×2.5 ±5
	Connection symbol		Y2N DYN5
Enclosure	Protection level of enclosure	dB	IP43
	Sound level		≤50

Every product by PT. Jeko Elektrindo Jaya is engineered with a commitment to quality, safety, and long-term reliability. Our technical specifications reflect global standards while being adapted to meet the real-world demands of the Indonesian power infrastructure. Discover the core features that make our solutions trusted across industries.

 

Assembly Drawing & Mounting Dimensions

• 24kV / 400V Compact Substation (CSS) : For standard PLN distribution networks and Often used in housing complexes, shopping centers, and industrial parks
• Mini CSS with Dry-Type Transformer : Safer for indoor or high-risk areas (hospitals, commercial zones)
• Solar-Ready CSS : Integrated with inverters for PV solar plant connection to PLN grid

• The European Box Type Substation integrates MV switchgear, transformer, and LV switchgear into a compact, enclosed unit, typically mounted outdoors.
• This configuration is the hallmark of Compact Substations (CSS), widely used across Europe, Asia, and urban Indonesian settings.
• Unlike American-style pad-mounts, European-style substations focus more on modularity, enclosure-based design, and above-ground access.