Combined Substation (American Style) YB25-12/0.4 - Product

Overview:

This product is developed by absorbing the latest advanced foreign technology and adapting it to the domestic situation. The entire product is characterized by its compact size, easy installation and maintenance, low noise, low loss, anti-theft features, strong overload capacity, and comprehensive protection. It is suitable for new residential areas, green belts, parks, stations, hotels, construction sites, airports, and similar locations.

The YB25-12/0.4 combined box-type substation (American style) is suitable for 10kV ring network power supply, dual power supply, or terminal power supply systems, serving as a device for transformation, metering, compensation control, and protection.

Operating Conditions:

Altitude not exceeding 1000 meters;
Ambient temperature: -35°C to +40°C;
Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%;
Installation site: Should be free from fire, explosion hazards, chemical corrosive gases, and should have good ventilation. The ground inclination should not exceed 3°.

Item	Unit	Parameter
Rated Voltage	kV	10/0.4 (High Voltage/Low Voltage)
Maximum Operating Voltage	kV	12 (High Voltage Side)
Rated Frequency	Hz	50
Rated Capacity	kVA	50-1600
1-Minute Power Frequency Withstand Voltage	kV	35
Lightning Impulse Voltage	kV	75
Cooling Method		Oil-immersed Self-cooling
High Voltage Backup Fuse Breaking Current	kA	50
Plug-in Fuse Breaking Current	kA	2.5
Ambient Temperature	°C	-35 to +40
Coil Permissible Temperature Rise	°C	65
No-load Voltage Regulation		±5% or ±2×2.5%
Noise Level	dB	50
Protection Level		IP43