ZBDEL series feedback DC electronic load-ZhongChuang Electric

Products Description

Product overview:

The ZBDEL series power supply features a dual-stage architecture with a DC-DC three-level/carrier phase-shifting circuit, complemented by an SVPWM-based DC/AC inverter circuit in the downstream stage. Its specially designed power frequency transformer isolates the grid through unique filtering technology. The front-end employs a four-quadrant operating three-phase half-bridge circuit that optimizes power factor and current harmonic control while maintaining stable DC bus voltage. The bus system utilizes film capacitor support for superior high-frequency performance and extended service life.

Product features:

● Built-in AC isolation transformer +LC AC/DC filter, input and output electrical isolation;

● Use Infineon high voltage IGBT module two-stage conversion, pure digital frequency isolation power supply;

● Energy can be fed back to the grid: it has both power supply and load characteristics;

● The carrier phase shift circuit is adopted on the DC/DC side to make the DC output side more accurate and the ripple smaller;

● It can achieve the characteristics of wide voltage range, high precision and fast dynamic response;

● Output has constant voltage, constant voltage current limiting, constant current, constant power, constant resistance mode.

App industries:

It is applied to photovoltaic inverter, PCS (bidirectional energy storage inverter) test, charging pile module test, motor controller test, new energy vehicle test and other fields.

unit type	ZBDEL40 -800/24-100-	ZBDEL60 -1000/24-200-1	ZBDEL80 -1000/24-300-	ZBDEL150 -1000/24-500-	ZBDEL300 -1000/24-800-	ZBDEL400 -1000/24-900-	ZBDEL500 -1000/24-1000-1	ZBDEL600 -1000/24-1200-
power rating	40kW	60kW	80kW	150kW	300kW	400kW	500kW	600kW
rated current	100A	200A	300A	500A	800A	900A	1000A	1200A
rated voltage	400V	300V	265V	300V	375V	445V	500V	500V
voltage range	24-800V	24-1000V (standard) /24-1200V (optional) /48-1500V (optional)
Input DC characteristics
number of channels	Single channel/bis channel (optional)
Beesize power	1.2 Pe(60s)
peak point current	12 le(60s)
Source effect	50.1%FS
The negative side effect	0.14FS
voltage accuracy	s0.14FS
Current accuracy	50.1%FS
voltage ripple	30.2%FS
response time	≤3ms (10W-90% sudden load)
switching period	66ms(-90%-+90% switch)
device efficiency	≥94%
Output exchange indicators
Power supply type	Three phase four wire +PE
Voltage range of the grid	360-440V
Frequency range of power grid	47-53Hz
power factor	≥099
current harmonics	THDi≤3%
system function
work pattern	Constant voltage/constant current/constant power
isolation method	Power frequency isolation transformer
Remote compensation	Adaptive compensation line voltage drop
defencive function	Overvoltage, undervoltage, phase loss, overcurrent, short circuit, overload, overheating, emergency stop and other protection
Display and communications
Local operation	LCD display screen
Select Communications	RS 485/LAN/CAN
protocol	Standard Modbus RTU/Modbus TCP/IP/CAN2.0
Safety performance
compression strength	2000Vdc/60s/ no breakdown
insulation resistance	=20MQ@500Vdc
earthing resistance	s100mΩ
noise	≤65dB(A)
service environment
work environment	The ambient temperature is-20℃-45℃, and the relative humidity is 0-95%, which can work continuously for 24 hours
cooling-down method	Fan forced air cooling
levels of protection	IP 21
above sea level	No more than 5000m@>2000m reduced use
Size (W-DH) mm	650-650+1600 (including mobile wheels)	1000-1000-1860 (including mobile wheels)	1000*1000 ·18601000-1000-1860 (With moving wheels) (With moving wheels)		1800*1000 ·1840	1800-1000 +1840	20001240 2080	2000-1240 +2080

DC test power supply

ZBDEL series feedback DC electronic load

Products Description