High Power AC/DC Electronic Load
High Power AC/DC Electronic Load
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 1.875kVA||0 to 180kVA This maximum is achieved by using units in master-slave.|
|Voltage:||50 to 350VRMS||50 to 480VRMS|
|Current:||0 to 18.75ARMS||0 to 900ARMS This maximum is achieved by using units in master-slave.|
|Optional Control:||Analogue, Ethernet, IEEE 488.2, RS-232, USB|
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The ELPA-SINE series of programmable electronic loads feature a comprehensive set of both AC and DC test functions. The 4 digit display simultaneously provides actual values taken by the load.
Users can toggle between various measurements for: voltage, current, power, frequency, crest factor, power factor and harmonics. On request the load can be built with a GPIB, RS-232, USB or LAN remote control interfaces.
- Sine, Step and Squarewave Loading Functions
- Adjustable Leading and Lagging Power Factor
- High Power Configurations to 180kW
- CC, CV, CP, CR and Crest Factor Mode
- Last Setting Memory Function
- DC to 440Hz Operation
Single Phase Connection
Up to 8 ELPA-SINE systems can be arranged in single phase parallel connection. Each electronic load is able to operate independently, so that systems can be reconfigured, expanded or broken up as needs dictate.
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.
The modular approach is useful for test houses and research labs who regularly test different sized power devices. Individual units can be used for the day to day testing of multiple small devices, then grouped together for larger projects.
Three Phase Connection
ELPA-SINE units with identical nominals can be configured in Δ or Y connections for 3 phase applications. Systems can be expanded up to 180kW per phase using the master/slave interface. The setting current value (single phase current value) will be sent to each slave unit automatically, the user does not have to set each unit.
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
Each unit 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
The ELPA-SINE has three inbuilt battery discharge tests. 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. GPIB, RS-232, USB and LAN remote control interfaces can also be specified.
Safety and Protection
A host of protection features guard the unit against over power, voltage, current and temperature.
Form Factor and Enclosures
Units can be treated to a laboratory rack or flight case integration. Having a programmable power system mounted into a flight case on castors is often advantageous, especially when several departments or test cells share the same equipment. Multiple power systems can be fitted into the same flight case.
Door hangers are fitted to flight cases for convenience. Existing ETPS systems can also be retrospectively integrated into new flight cases where requested.
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 1875||1875W||50 - 350VRMS||50 - 500VDC||0 - 18.75ARMS||Add|
|ELPA-SINE 2800-HV||2800W||50 - 480VRMS||50 - 700VDC||0 - 18.75ARMS||Add|
|ELPA-SINE 2800||2800W||50 - 350VRMS||50 - 500VDC||0 - 28ARMS||Add|
|ELPA-SINE 3750-HV||3750W||50 - 480VRMS||50 - 700VDC||0 - 28ARMS||Add|
|ELPA-SINE 3750||3750W||50 - 350VRMS||50 - 500VDC||0 - 37.5ARMS||Add|
|ELPA-SINE 5600||5600W||50 - 350VRMS||50 - 500VDC||0 - 56ARMS||Add|
|ELPA-SINE 7500||7500W||50 - 350VRMS||50 - 500VDC||0 - 75ARMS||Add|
|ELPA-SINE 11250||11250W||50 - 350VRMS||50 - 500VDC||0 - 112.5ARMS||Add|
|ELPA-SINE 15000||15000W||50 - 350VRMS||50 - 500VDC||0 - 112.5ARMS||Add|
|ELPA-SINE 18750||18750W||50 - 350VRMS||50 - 500VDC||0 - 112.5ARMS||Add|
|ELPA-SINE 22500||22500W||50 - 350VRMS||50 - 500VDC||0 - 112.5ARMS||Add|
Frequently asked questions
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