Malaysia Princeton Data Center Downstream 33kV GIS Substation Equipment Supply Project

Overview:
The 33kV GIS substation downstream of Princeton Data Center (Malaysia’s first Uptime Tier III-certified facility) serves as the critical power hub guaranteeing 99.999% operational continuity. It confronted triple extreme challenges: corrosive tropical climate (annual humidity >85%), spatial constraints (40% footprint of conventional substations due to underground installation), and 25kA short-circuit current surges from escalating computational loads.

As the sole equipment provider, SH Power delivered its proprietary SH-40.5/T630A-25KA SF6 gas-insulated ring main unit with circuit breaker. Key innovations included: a laser-welded stainless steel gas tank (leakage rate <0.5%/year, IP67 rating) resisting salt spray corrosion; modular compact design (800mm depth, back-to-back installable) overcoming space limitations; vacuum interrupter units (validated by 25kA/4s thermal stability test, 10,000 mechanical operations) ensuring fault current interruption; and embedded DTU for real-time SF6 density/temperature monitoring with “Four Remote” functions (telemetry, teleindication, telecontrol, telesetting) . Commissioned 18 days ahead of schedule, the substation now supports 30% additional DC load capacity, setting a benchmark for urban high-density substations in Southeast Asia.