Advanced AC Load with Adjustable PF
Advanced AC Load with Adjustable PF
While primarily aimed at AC applications, the ELPA-SINE can also be used for DC testing. A comprehensive feature set is provided as standard.
|Power:||0 to 3.75kVA||0 to 3.75kVA|
|Voltage:||50 to 350VRMS||50 to 350VRMS|
|Current:||0 to 37.5ARMS||0 to 37.5ARMS|
|Standard Control:||HMI, Analogue, Ethernet|
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The ELPA-SINE is an advanced series of electronic loads, aimed at both AC and DC test applications. A comprehensive feature set is provided, as well multiple inbuilt tests.
When in constant current operation the user can select between sine, square and DC waveforms. Peak currents can be simulated with the crest factor mode. A power factor can be set with adjustments from unity to 0 lagging or leading. The desired wave can be recalled from the front panel or selected via an optional computer interface. A turbo mode is included as standard. This provides the ability to test currents up to double the maximum current range for up to 1 second, ideal for inrush current testing.
- Sine, Step and Squarewave Loading Functions
- Adjustable Leading and Lagging Power Factor
- CC, CV, CP, CR and Crest Factor Mode
- Last Setting Memory Function
- DC to 440Hz Operation
Our rental system can be combined in parallel with any ELPA-SINE 3750 units you have previously purchased, providing they have the same nominal outputs. This allows any short term requirements outside of usual operating ranges to be met. Up to 8 ELPA-SINE systems can be arranged in single phase parallel connection.
The current is actively shared between each load. The ammeter of the master unit shows the total current that is the sum of all ammeters, The voltmeters of the slaves will show SL1 and SL2.
Operating Ranges and Features
The ELPA-SINE is able to operate at maximum current across most of its voltage range. This allows one system to test many different types of AC and DC devices. When operating below 50V, the maximum amount of current that the load can sink decreases. Example values for this derating at low voltages are provided below.
When in constant current operation the user can select between sine, square and DC waveforms. An adjustable frequency up to 440Hz is provided. Peak currents can be simulated with the crest factor mode. A leading or lagging power factor can be set with adjustments from unity to 0 lagging or leading. The desired wave can be recalled from the front panel or selected via an optional computer interface. The load can also be operated in constant power, voltage, resistance or linear CC modes.
Multiple inbuilt tests include UPS efficiency, PV inverter efficiency, UPS back-up time, battery discharge time, UPS transfer time, short circuit and fuse/breaker trip testing. Other interesting features of the ELPA-SINE include a turbo mode which can test currents up to double the maximum current of the unit up to 1 second, ideal for inrush current testing.
Rectifier Load Simulation
The electronic load features a rectifier load mode. This allows users to test IEC test specification requirements for the UPS, IEC 62040-3 UPS Efficiency Measurement Non-Linear and IEC 61683.
Battery Discharge Function
Three inbuilt battery discharge tests are provided. The battery tests allow the user to set a voltage threshold to stop the discharge, avoiding accidental damage to the battery. Capacity in Ah, discharge time and voltage can all be read from the display.
Interfaces and Control
Front panel control is provided as standard, as well as an anologue and LAN remote control interface.
Safety and Protection
A host of protection features guard the unit against over power, voltage, current and temperature.
Form Factor and Enclosures
The electronic load is delivered mounted in a flight case with locking castors. Door hangers are also fitted for convenience.
Adjustable frequency is possible from 40-440Hz, making the units ideal for testing aerospace power sources. The ability to also sink DC sources helps to ensure that the ELPA-SINE is the perfect all-round lab kit.
|Max Power||Voltage Range AC||Voltage Range DC||Current Range|
|ELPA-SINE 3750-r||3750W||50 - 350VRMS||50 - 500VDC||0 - 37.5ARMS||Add|
Frequently asked questions
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