Voltage Range (AC): Low Range: 0-166 Vrms L-N High Range: 0-333 Vrms L-N
Voltage Range (DC): Low Range: 0-220Vdc High Range: 0-440Vdc
Tariff fees or manufacture imposed surcharges may be applicable.
Overview
The California Instruments Tahoe Series combines intelligence and flexibility with high power to create an advanced platform of programmable AC/DC power sources.
Using a state-of-the-art SiC power switching architecture and Digital Signal Processing, the Tahoe Series combines a robust, high-power AC/DC source with an advanced power analyzer in a single-floor standing chassis.
This easy-to-configure high-power source covers a wide spectrum of single and three-phase AC power sources or single-channel and multi-channel DC power supplies at an affordable cost. Tahoe Series can fulfill your power test requirement with add-on test application routines for military and commercial avionics testing.
Features and Capabilities:
Dual Voltage ranges that support over-voltage testing on 480V-based systems
Separate terminal blocks for single-phase and three-phase AC power supply outputs
High Power AC and DC Source
Auto paralleling for higher power system expansion
Single and three-phase modes
Arbitrary & Harmonic Waveform Generation
Standard LXI LAN, USB, and RS-232, Optional GPIB
Step, list, and pulse voltage transients with down to 500usec resolution
Complete avionics power quality test suites
15kVA to 1MVA Power Levels
Intuitive 5" color display for ease of navigation
Internationally accepted test routines for EMI/EMC, Safety Compliance
Output Specifications
Power: 90kVA / 90kW 1 or 3Φ
Modes: AC, DC, AC+DC (Source mode only)
Voltage Range (AC): Low Range: 0-166 Vrms L-N High Range: 0-333 Vrms L-N
Voltage Range (DC): Low Range: 0-220Vdc High Range: 0-440Vdc
Output Coupling: Standard configurations: DC coupled. Optional 3rd AC coupled range: 0- 444, 555, 666, or 721Vrms L-N
Voltage Accuracy: AC and DC Modes: +/-0.2% FS; AC+DC Mode: +/- 0.3%
Voltage Resolution: 0.1V, AC, DC, AC + DC modes
Voltage Distortion: <66Hz: 0.5%, 66-500Hz: 1%, >500Hz: 1.5%
Current Per Φ (FSV): 180.7/90.1 Arms, 91/68.2 Adc
Current Per Φ (max): 250/125 Arms, 125.8/94.6 Adc
Constant Power Mode: Operation at higher currents but constant power is possible from 72% of Voltage range (138% of rated current) declining to 100% of rated current at 100 % of voltage range.
Frequency Range DC: DC, 16-550Hz, DC, 16-905Hz with HF Option
Frequency Accuracy +/-0.01% + (resolution/2)
Frequency Resolution: ≤81.91Hz: 0.01Hz, 82.0 to 819.1Hz: 0.1Hz, >819.1Hz: 1Hz (With LKM/LKS option , 1Hz from 16 Hz to 905 Hz)
Voltage Stability: 0.25% over 8 hours at constant line, load, & temperature, with external sense leads connected
Simple Operation
The Tahoe Series can be operated completely from its menu-driven front panel controller. The full-color touch display shows menus, setup data, and read-back measurements. RS-232C, USB, and LAN
remote control interfaces and instrument drivers for popular ATE programming environments are available. This allows the Tahoe Series to be easily integrated into an automated test system.
With the programmable arbitrary waveform generator, the user can generate application-specific waveforms, obtain time and frequency domain measurements, and capture actual voltage and current waveforms.
Configurations
The Tahoe Series offers five single chassis configurations: 15kVA, 22.5kVA, 30kVA, 45kVA, and 90kVA. For high programmable AC power requirements, multi-cabinet models are available. These systems offer Reflex capability, allowing flexible user reconfiguration as needed. This ability to reconfigure the system greatly expands your test coverage and is not commonly found in power systems.
Choice of Voltage Ranges
The Tahoe Series offers dual range 0 - 166V & 0 - 333V line to neutral direct coupled output. These models provide a maximum three-phase AC power supply output capability of 287 VAC & 576 VAC line to line respectively. For applications requiring more than 333 V L-N (or 576 V L-L), optional transformer coupled ranges up to 715 V L-N and 1,238 V L-L are available.
High Crest Factor
With support for high crest factor loads, the Tahoe can drive difficult nonlinear loads with ease. Since many modern products use switching power supplies, they tend to pull high repetitive peak currents. The TA30 with a crest factor rating of 4.5, for example, can deliver up to 300 Amps of repetitive peak current (166 V AC range) per phase to handle three-phase loads. Refer to the specifications for peak repetitive currents for each model.
Remote Control
Standard RS232C, USB, and LAN, along with optional GPIB remote control interfaces, allow the programming of all instrument functions from an external computer. The popular SCPI command protocol is used for programming.
