GridStone Electric

The prime function of OptiV MAX II dynamic voltage restorer (DVR) is to reduce the voltage sags on power lines that supply power to sensitive equipments. The DVR is principally accountable for restoring the quality of voltage supplied to the end-user in case the voltage from the supply is not suitable to be used for sensitive devices. DVR allow consumers to isolate and protect devices from disturbances developed by sags and swells on the distribution network or power lines. Additionally, DVRs can also be used to address the trouble of harmonics generated by non-linear load in manufacturing machinery setup.

Working principle
Cascade a compensated transformer between power supply and load,primary coil of the transformer could provide compensated voltage with same frequency,phase lock,voltage amplitude to keep output voltage stable.

Because of the dynamic compension of the inverter,DC power could provide power to inverter,if there is flash or voltage drop of grid voltage,inverter could compensate within 1ms.

PWM is base on sin. wave,it could compensate voltage harmonic wave effectively by collecting and comparision of voltage wave and standard wave,it will make sure that output THD less than 3%.

Input voltage：3Ф380V±20% (3 phase 4 lines) (permitted short drop 50%)
Input frequency：40-70Hz；
Output voltage：3Ф380V±5% (setting)；
Voltage stablity accuracy：±1%；
Main control part：IGBT；
Compensated mode：MPWM, inverter compensation (inverter inside)
Compensated time：≤2ms；
Harmonic wave compensated voltage: THD≤2%；
Voltage adjustable mode：3 phase adjusting respectively,3 phase auto balance
Harmonic wave resistance：Able to work under serious wave distortion.
Sharp peek resistance：Input 4000V single pulse，output less than 40V；
Wave filter：0.15M—10M，differential mode 70 to 100 dB,common mode 100dB。

DVR Dynamic Voltage Restorer（3 phase output）
Model	Capacity （kVA）		Output current （A）	Dimension LxWxH（mm)
DVR13003 DVR33003	3		4.2	350×650×670 (with wheel)
DVR13006 DVR33006	6		8.4
DVR13010 DVR33010	10		15
DVR13015 DVR33015	15		23	460×700×1170 (with wheel)
DVR13020 DVR33020	20		30
DVR33030	30		45
DVR33045	45		68	780×650×1450
DVR33060	60		91
DVR33075	75		114	950×700×1600
DVR33090	90		137
DVR33120	120		183
DVR33150	150		228	1200×750×1800
DVR33200	200		304
DVR33250	250		380	1400×800×2000
DVR33300	300		456
DVR33350	350		532	1500×1050×2000
DVR33400	400		608
DVR33500	500		760	1500×1050×2000 （2 machines in a carbinet）
DVR33600	600		912
DVR33800	800		1216
DVR331000	1000		1520	1500×1050×2000 (3 machines in a carbinet)
DVR331200	1000		1823
DVR331400	1000		2127	1500×1050×2000 (4 machines in a carbinet)
DVR331600	1000		2431
DVR331800	1000		2735	1500×1050×2000 (5 machines in a carbinet)
DVR332000	1000		3038
DVR Dynamic Voltage Restorer（Single output）
DVR11-500W		0.5	2.1	425×436×173 (4U highness)
DVR11001		1	4.2
DVR11002		2	8.5	350×650×670 (with wheel)
DVR11003		3	13
DVR11005		5	21
DVR11010 DVR31010		10	42
DVR11015 DVR31015		15	63	460×700×1170 (with wheel)
DVR11020 DVR31020		20	84
DVR11030 DVR31030		30	126
DVR11045 DVR31045		45	189	780×650×1450
DVR31060		60	252
DVR31075		75	315	950×700×1600
DVR31090		90	378
DVR31120		120	504	1200×750×1800
DVR31150		150	630
DVR31200		200	840	1400×800×2000
DVR31300		300	1350

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