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Prefabricated Kiosk Substation

Factory-assembled outdoor substations for integrated medium- and low-voltage power distribution.

Wafr supplies prefabricated kiosk substations that integrate high-voltage switchgear, a transformer, and low-voltage switchgear within a steel outdoor enclosure. Designed for outdoor installation, these systems provide a compact solution for receiving, transforming and distributing electrical power while reducing on-site installation complexity.

Key Specifications

SpecificationConfiguration
Rated Frequency50 / 60 Hz
Rated Voltage (High-Voltage Section)6 / 10 / 35 kV
Maximum Working Voltage6.9 / 11.5 / 40.5 kV
Power Frequency Withstand Voltage (grounding / interphase & isolation fracture)32/36, 42/48, 95/118 kV
Lightning Impulse Voltage (grounding / interphase & isolation fracture)60/70, 75/85, 185/215 kV
High-Voltage Rated Current400 / 630 A
High-Voltage Rated Short-Term Withstand Current12.5 (2s) / 16 (2s) / 20 (2s) kA
High-Voltage Rated Peak Withstand Current31.5 / 40 / 50 kA
Low-Voltage Rated Voltage380 / 220 V
Low-Voltage Main Circuit Current100 to 3,200 A
Low-Voltage Rated Short-Term Withstand Current15 / 30 / 50 kA
Low-Voltage Rated Peak Withstand Current30 / 63 / 110 kA
Branch Current10–800 A
Number of Branch Circuits1 to 12
Compensation Capacity0–360 kvar
Transformer Rated Capacity50–2,000 kVA
Short-Circuit Impedance4 / 6%
Tap Range±2×2.5% / ±5%
Connecting GroupYynD / Dyn11

Available Configurations

High-Voltage Section

6 kV, 10 kV or 35 kV

Low-Voltage Section

380 / 220 V with main circuit current up to 3,200 A

Transformer Section

50 to 2,000 kVA

Branch Circuits

1 to 12 circuits

Connection Group

YynD or Dyn11

Product Composition

Product Features

  1. Convenient installation: The internal equipment installation and commissioning of the kiosk substation is completed in the factory before delivery; site installation only needs to fix the substation on the pre-made base and connect the inlet and outlet cables.
  2. High mobility: The mobile substation is suitable for temporary electrical engineering, and can be relocated and installed elsewhere for continued use without wasting resources.
  3. Low cost of construction: Mobile substations save about 50% in cost compared to civil engineering rooms, shorten the construction period by half, and do not require personnel on duty during the operation phase.
  4. Low on-site construction volume: The mobile substation does not require a separate distribution room, only a simple base needs to be built, greatly reducing the construction amount.

Key Features

  • Factory-assembled and commissioned before delivery
  • Integrated high-voltage, transformer and low-voltage sections
  • Outdoor steel kiosk construction
  • Reduced on-site installation requirements
  • Relocatable design for temporary or changing power needs
  • Simple base installation with reduced civil works
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Start with a simple general inquiry to start the conversation. Or tell Wafr what equipment you need, where it is going and when the project needs it.