Single Unit Serving Two Purposes with Remarkable Functions

APL-II integrates the functions of a DC power supply and a regenerative electronic load into a single unit, thus offering space and cost savings as well as increased work efficiency.

Space Saving

The use of a current type inverter switching circuit and the high frequency isolation method makes APL-II a compact, space-saving product.

Auto Switch between Power Running and Regeneration

APL-II can switch between the DC power supply function and the electronic load function without the need to change the existing wiring connection. When used as a power supply for a motor-driving inverter, APL-II automatically absorbs the energy from motor operation and returns the absorbed energy to the AC power system.

Functions

Compact Body Supporting Four Operating Modes

APL-II allows you to set one of the four operating modes⎯Constant Voltage (CV), Constant Current (CC), Constant Resistance (CR) and Constant Power (CP)⎯as appropriate for your purpose.

Parallel Connection

You can connect up to four APL-II units in parallel, including the master unit. This allows you to adjust the current capacity of the power supply, as appropriate for your purpose, and provide the adjusted power.

Product Name: APL-II

Item		Specifications				Remarks
Model		MWBFP2-1020	MWBFP2-1040	MWBFP2-1050	MWBFP2-1080
AC	System Power Voltage	3Φ / 200V ±10%
	System Power Frequency	50 / 60 Hz
	Power Factor of System Power	98%				When operating as a load at the rated power
	System Power Distortion Rate	Total rate ≤ 5%, Rate on each side ≤ 3%		Total rate ≤ 6%, Rate on each side ≤ 4%	Total rate ≤ 5%, Rate on each side ≤ 3%	When operating as a load at the rated power
	Rated Capacity	±12kVA			±13kVA
DC	DC Input/Output Operating Voltage	0 ˜ 200V	0 ˜ 400V	0 ˜ 500V	0 ˜ 800V	Power supply mode
		50 ˜ 200V	100 ˜ 400V	120 ˜ 500V	200 ˜ 800V	Load mode
	DC Input/Output Current	0 ˜ ±50A	0 ˜ ±25A	0 ˜ ±20A	0 ˜ ±12.5A	"-" indicates that APL-II is operating as a load.
	DC Input/Output Power	±10kW				"-" indicates that APL-II is operating as a load.
CV Mode	Constant Voltage Precision	±1.0%FS				When operating as a load at the rated power
	Voltage Setting Range	1 ˜ 200V	1 ˜ 400V	1 ˜ 500V	1 ˜ 800V	Power supply mode
	Ripple Noise	±1.0%rms				In relation to the rated value
CC Mode	Constant Current Precision	±1.0%FS				When operating as a load at the rated power
	Current Setting Range	0 ˜ ±50A	0 ˜ ±25A	0 ˜ ±20A	0 ˜ ±12.5A	"-" indicates that APL-II is operating as a load.
	Ripple Noise	±1.0%rms				In relation to the rated value
CP Mode	Constant Power Precision	±1.0%FS			±2.0%FS	When operating as a load at the rated power
	Power Setting Range	±10kW				"-" indicates that APL-II is operating as a load.
CR Mode	Constant Resistance Precision	±1.0%FS			±2.0%FS	Only when operating as a load
	Resistance Setting Range	1.0 ˜ 200Ω	2.0 ˜ 400Ω	1.0 ˜ 500Ω	4.0 ˜ 800Ω	Minimum resolution 0.1Ω
Load Regulation		±1.0%				CV / CC MAX (in relation to the rated value)
Line Regulation		±1.0%
Efficiency		85%				When operating at the rated power
Other	Operating Temperature Range	0 ˜ 40℃
	Operating Humidity Range	0 ˜ 80%RH				No condensation allowed
	Elevation	1000 m or lower
	Operating Environment	To be used indoor with air conditioning.				No corrosive gas and no other hazardous substance allowed
	Dielectric Strength Voltage between Input/Output and Housing	AC1500V / 1minute			AC2500V / 1minute
	Protections	Over-voltage protection, over-current protection, over-heat protection, internal blown fuse detection and emergency stop (in the device)
	Size	W430mm x D600mm x H305mm			W430mm x D800mm x H305mm	Excluding the terminal block, handle, etc.
	Weight	Approx. 53 kg			Approx. 65 kg

< Options >

Product Name	Serial No.	Remarks
I-V Simulation Software	MWBFP2-SIM	The output characteristics of a solar cell or fuel cell can be simulated.
Remote Operation Software	MWBFP2-RMT	Battery charging/discharging tests can be conducted.
Mounting Rack	MWBFP-ACS-01

Power Supply for Inverter Driving

APL-II can be used as a DC power supply for a motor-driving inverter. Plus, supporting the bidirectional power supply function as a standard feature, APL-II can absorb the regenerative energy produced during motor braking.

Solar Cell Simulation Function (Option)

When used with the optional I-V simulation software, APL-II can operate as a simulated solar cell.

• Download of I-V characteristic data (max. 9 hours' worth of data)
• I-V system console to monitor the status of the simulated operation
• Remote control of I-V data through an external analog input

Battery Simulation Function (Option)

When used with the optional I-V simulation software, APL-II can operate as a simulated battery.

• Download of I-V characteristic data (max. 9 hours' worth of data)
• I-V system console to monitor the status of the simulated operation
• Remote control of I-V data through an external analog input

Battery Charging/Discharging Function (Option)

By setting a charging/discharging pattern using the optional remote operation software, you can use APL-II as a battery durability tester.