regulated power supply for laboratory testing

Specifications regulated power supply

high efficiency>90%, electricity saving over 15%

70% smaller, 60% lighter

touch screen +PLC optional

 Regulated power supply for laboratory testing  output standard size: Output 0-100V, 0-50000A, can be custom according to customers’ requirements.   Company Advantage: 1.Always concentrate on rectifier R & D, production, quality control and service. 2.Various patents obtained for outlook, functions, structures etc. 3.We are factory, have manufacturing ability and good craftwork. 4.Good resources for materials lay firm basis for quality control. 5. High quality, quality control follows ISO9001:2008 and Chinese military standard. 6. Full load testing ability 7. Technical service available before sale and after sale 8. Have rich foreign trade business experience.   Patent frequency conversion cooper transformer replaced power transformer,  lower power loss, greatly enhanced the power efficiency  with electricity saving over 16%, smaller and lighter.                                                                                                                                                                                                                                                                 --Full loading aging testing  for quality assurance     .                                                                          Cooling method: 1.Continuous forced water cooling(well sealed, suitable for acid, alkali & moisture surroundings) 2. Continuous forced air cooling.     

SCR and high frequency switch rectifier comparison
Item and Parameter	SCR	High frequency switch rectifier
Transformer	power frequency transformer, bigger and heavier	frequency conversion transformer, around smaller and lighter with higher efficiency
Control modular	Silicon controlled	IGBT transistor pulse width modulated control
Working frequency	50HZ	Around 35KHZ
Control method	phase shifting trigger	Pulse width modulated control(PWM)
Output wave- filter	No, without	Yes, with distinguishing wave filter effect
Output DC	half wave	high density DC square waveform
Constant voltage precision	<5%	<1% ,even can <1%
Constant current precison	<5%	<1%
Cooled method	water cooled/oil cooled/forced air cooled	forced air cooled\ water cooled
Power efficiency	70%	>90%
Power factor	0-0.9 variable during the process	whole process above 0.9
Control circuit	Complicated with synchronization         requirement, difficult to be integrated	simply adopt professionally used integrated circuit board with corrosion-resistant treatment, full-sealed.
Size	Very big	around 70% smaller than SCR
Weight	Very heavy	around 60% lighter than SCR
On/off with loading	not permitted	can fulfill
Permitted input voltage           fluctuating range	±10%	±15%
Disturbance to electricity           network	big, not easy to get rid of	very small, easy to get rid of
Influence adjustment               speed	common	very quickly
Electricity saving	bad	obvious electricity saving effect, can save electricity over over 15% than SCR
Automatic control effect	general	Intelligent, touch screen + PLC optional

     Product description: 1.IGBT pulse width adjustment control. 2.Standard N+1 modular design, when a module is damaged, power source can still work under rated current, it greatly enhances the reliability. 3.Whole machine’s power efficiency >90%, output frequency around 30KHz, can save electricity over 15% than SCR. 4.Low ripple factor. Inner wave-filtering device optional. 5. 75% size saving, and 60% weight reducing comparing to thyristor controlled system, with the high frequency technology, convenient for moving and planning. 6.Completely sealed box, has good anti-corrosion nature. 7.Over-rounded protection function for over-current, over-voltage,over-heat, short circuit, phase loss etc. 8.Nearby control board or remote PLC control system with LCD light backed touch screen optional.