| Brand | Ametek Programmable Power |
|---|---|
| Power (single chassis) | 15 kVA / 22.5 kVA / 30 kVA / 45 kVA / 90 kVA |
| Max parallel power | Up to 1.08 MVA (12× 90 kVA) |
| Output Voltage | 0–166 V and 0–333 V line-to-neutral (dual range) |
| Phases | 1-phase and 3-phase |
Tahoe Series — Precision Programmable AC & DC Source
The California Instruments Tahoe Series is a high-power, two-quadrant precision programmable AC and DC source covering 15 kVA to 1.08 MVA. Built on silicon-carbide (SiC) switching technology, the Tahoe delivers high efficiency and exceptional waveform fidelity for demanding AC and DC power simulation and product test applications.
- Power range: 15 kVA, 22.5 kVA, 30 kVA and 45 kVA chassis; parallel configurations up to 1.08 MVA
- Two-quadrant operation: precision AC source and AC/DC power source (not regenerative)
- Silicon-carbide (SiC) switching for high efficiency and reduced heat generation
- Dual output voltage range: 0–166 V and 0–333 V line-to-neutral
- 500 µs transient time resolution
- Compatible with CTSHL harmonics and flicker compliance test system
- 2-year standard warranty
| Model | Power (kVA) | Chassis Config | Phases | Quadrants | DC Output |
|---|---|---|---|---|---|
| TA0015A1 | 15 | Single (15 kVA) | 1-phase | 2Q | Yes |
| TA0022A1 | 22.5 | Single (45 kVA base) | 1/3-phase | 2Q | Yes |
| TA0030A1 | 30 | Single (45 kVA base) | 1/3-phase | 2Q | Yes |
| TA0045A1 | 45 | Single (45 kVA base) | 1/3-phase | 2Q | Yes |
| TA0090A1 | 90 | Single (90 kVA base) | 3-phase | 2Q | Yes |
| TA0180A2 | 180 | 2× 90 kVA parallel | 3-phase | 2Q | Yes |
| TA0270A3 | 270 | 3× 90 kVA parallel | 3-phase | 2Q | Yes |
The Tahoe Series addresses applications where a high-quality, high-power AC/DC source is needed without the cost premium of full regenerative (four-quadrant) operation. It covers frequency conversion, avionics power bus simulation, high-power product test, burn-in and industrial drive testing. SiC technology significantly reduces switching losses compared to IGBT-based predecessors, resulting in lower cooling requirements and higher overall system efficiency. Up to six 45 kVA units or twelve 90 kVA units can be connected in parallel, reaching 270 kVA and 1.08 MVA respectively. The Tahoe shares the same user interface, control software and mechanical platform as the Sequoia, simplifying lab management when both series are deployed.
High-Power AC/DC at Lower Cost
Two-quadrant design delivers 15 kVA to 1.08 MVA AC/DC simulation without regenerative hardware — the cost-effective choice when energy recovery is not required.
SiC Efficiency
Silicon-carbide switching reduces losses and heat versus IGBT designs, enabling higher density and lower cooling costs at scale.
Massively Scalable
Up to twelve 90 kVA chassis paralleled for 1.08 MVA output — a single scalable platform from lab bench to grid-scale test.
CTSHL Ready
Direct compatibility with the CTSHL harmonics and flicker compliance system for high-power EN IEC 61000-3-x testing.
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