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Sr Electrical Engineer - Isolation & Power Integrity
Omega Solutions Inc
Berkeley, USA
Full-time
Senior · 8+ years experience
Onsite
USD 50-55 hourly / hour
Discovered 1 weeks ago
EPLANCADUL508AIEC 60664-1IEC 61439DFMEA
Free
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EPLANCADUL508A
Key Skills for This Role
EPLANCADUL508AIEC 60664-1IEC 61439DFMEA
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- Team is scaling responsibilities across a small full-time group.
- Increasing complexity in battery energy storage systems (BESS).
- Need a dedicated owner for isolation + power distribution workstreams.
- Current team has been handling this work, but needs focused expertise to proactively identify and solve system-level issues.
- Focused on system-level power distribution + isolation strategy (not PCB design).
- Supporting complex BESS (battery energy storage) systems.
- This person will partner closely with Shraddha (design owner) and help drive execution, analysis, and system understanding.
- Design the robust power distribution system with the balanced 3-phase and split-phase AC loads (600V+).
- Define the isolation specifications (clearance, creepage, and dielectric withstand specifications) for the HVDC (2kV+), HVAC (600V) and LVDC (<50V) systems.
- Design the custom isolation barriers compliant with UL508A, IEC 60664-1, or equivalent.
- Define component- and material-level isolation specifications for all parts in the signal and power path between the 50VDC, 600V AC domain and the 2 kV DC battery domain.
- Specify the component level isolation specifications/test criteria for the electrical components. Design custom isolation barriers for components that do not natively meet required isolation criteria.
- Ensure isolation architecture is compliant with UL508A and is fully captured in DFMEA.
- Drive isolation reviews with compliance, safety, and mechanical design stakeholders.
- Build and maintain a per-phase ampacity rollup for all 600V AC loads, covering both 3-phase and split-phase consumers.
- Develop a load power budget across the system's defined operating modes, identifying worst-case loading.
- Analyze phase balance and flag imbalance risks to the upstream breaker; recommend rebalancing or load-shedding strategies.
- Size upstream protection and feeder conductors; coordinate with the panel designer on implementation.
- Present design reviews and defend technical decisions to cross-functional stakeholders.
- ~50% focused on power/load analysis, ampacity, and distribution modeling.
- ~50% focused on understanding BESS system architecture and how power flows through it.
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