The California Instruments 3091LD is a multi-mode AC electronic load designed for precise testing of AC power generation equipment, including Uninterruptible Power Supplies (UPS) and AC sources. It is also suitable for testing active or passive current-carrying devices such as switches, circuit breakers, fuses, connectors, and power semiconductors. The 3091LD can emulate a wide range of AC load conditions, including high crest factor and variable power factor loads, to simulate real-world scenarios and enhance product reliability. It offers flexible solutions for various AC power test applications and can be configured for higher power or three-phase operation by combining a master unit with auxiliary units.
### Technical Specifications
* **Power Dissipation:**
* 3000 W @ 0-37° C
* 2400 W @ 38-50° C
* Max. Peak Power: 13 kW (up to 20% duty cycle)
* **Voltage:**
* Range: 50 to 350 VRMS
* Max. Peak Voltage: 500 VPEAK
* **Current:**
* Range: 0 to 30 ARMS
* Max. Peak/Surge Current: 90 APEAK Surge; 300 APEAK for 50 ms
* **Frequency:**
* Range: 45 to 440 Hz
* **Operating Modes:**
* **Constant Power (CP):** Emulates loads such as switching power supplies.
* **Constant Resistance (CR):** Emulates conventional resistive loads, programmable from 2.5 to 1000 Ohms.
* **Constant Current (CC):** Provides a constant current load, suitable for voltage regulation testing. Range: 0 to 30 ARMS. Accuracy: 0.2% of full scale. Resolution: 0.05% of full scale.
* **Constant Voltage (CV):** Emulates a shunt regulator load, for testing current source products. Range: 50 to 350 VRMS. Accuracy: 0.2% of full scale. Resolution: 0.05% of full scale.
* **Short Circuit (SC):** Provides a short condition to test EUT’s short circuit protection. Max. Surge current: 300 APEAK for up to 50 ms.
* **Crest Factor:**
* Range: 1.4142 to 4.0 (limited to 90 Apeak)
* Accuracy: 1% of full scale
* **Power Factor:**
* Range: 0 to 1 lead or lag (limited by Crest Factor settings)
* Accuracy: 1% of full scale
* **Measurements:**
* Built-in measurement functions to eliminate the need for external test equipment.
* **Interfaces:**
* IEEE-488 (GPIB) – Standard
* RS232C
* **Control:**
* Menu-driven front panel for direct operation.
* Remote control via IEEE-488 and RS232C interfaces using SCPI protocol.
* Windows™ Graphical User Interface (GUI) for expanded measurement and display capabilities, with saving and printing of test results.
* **Master/Auxiliary Configuration:**
* A master 3091LD unit can be combined with one or more auxiliary 3091 units for higher power or three-phase applications. The master unit consolidates measurements for system integration.
* **Physical:**
* Dimensions: 8.75” (222 mm) H x 16.88” (429 mm) W x 25” (635 mm) D
* Weight: 74 lbs / 34 Kg
Why Choose Aumictech for California Instruments 3091LD?
At Aumictech, we specialize in supplying high-end AC electronic load equipment. Whether you need precise simulation of real-world AC power conditions, robust testing of power generation equipment, or reliable emulation of complex load scenarios, our team ensures the California Instruments 3091LD delivers maximum performance for your application.
