Digital Static and Servo Automatic Voltage Stabilizer (Since 1983)

Features
1. Variable transformer with columnar design for servo voltage stabilizer
Silent design without any moving wheels or brushes for static voltage stabilizer.
2. Digital control system. Intelligent sensing and protection.
3.Efficiency upto 99%
4.Independent or Dependent Three Phase Regulation subject to the order
5.Rich protection functions
6.Manual bypass for servo voltage stabilizer
Automatic bypass for static voltage stabilizer
7. Automatic restart when the grid power recover from a blackout.
8.EMI/RFI filter ( optional ) , Surge protection ( optional ), Remote control with 485 ( Optional )Input VoltageSingle phase:220V or 230V or 240V, Three phase: 380V or 400V or 415VInput Voltage tolerance+/- 15%, +/-20%, +/-30%, +/-45%Frequency50HZ /60HZOutput Voltage Tolerance+/-2% typical ( +/-1% optional )Over load capability300% 1sec, 120% to 200% 20sec, 100% to 120% 15minResponse time<10ms (Static model) , <0.1s (Servo model)Correction time< 100ms (Static model),<1s (Servo model) Efficiency >97% typical (Servomodelsbelow 250kVA) ;
>98% typical (Servomodels above 250kV)
>97% (typical; Static model below 50kVA) ;
>99% (typical; Static model above 50kVA)CoolingNature air convection for models below 150kVA;
Air forces fan for 150kVA and above.ProtectionUnder/Over voltage, over load, over current, short circuit, manual bypass, surge arrester (optional), voltage stabilization before power output;Displayinput voltageof each phase, Output voltageof each phase, Currentofeach phase, Alarm of protectionOperating temperature-15 to 40 ºCHumidity90%
Servo ModelRated Capacity
(KVA)Rated Current
(A)Dimensions (cm)
W x D x HWeight(kg)OVP3-15152375x55x125210OVP3-202031210OVP3-303046220OVP3-505076250OVP3-808012185x60x150340OVP3-100100152360OVP3-120120182370OVP3-15015022895x70x170500OVP3-180180273520OVP3-200200300540OVP3-225225342560OVP3-250250380580OVP3-320320486120x85x215880OVP3-4004006081100OVP3-5005007601350OVP3-600600912120x85x215x21760OVP3-80080012162200OVP3-1000100015202700OVP3-120012001824370x85x215x33000OVP3-1400140021273400OVP3-160016002431500x85x215x44000OVP3-200020003038510x85x215x45200OVP3-250025003800550x90x220x46280OVP3-300030004560750x90x220x67500OVP1-10104555x60x115150OVP1-202090175OVP1-303013655x65x138220OVP1-505022765x90x150290OVP1-808036371x92x162370OVP1-100100455430Note: the weight and dimensions may be changed subject to the order.
Static Model Rated Capacity(KVA)Rated Current(A)Dimensions
(cm)
W x D x HWeight(kg)OVM3-10101535x60x78
(With wheels)54OVM3-20203082OVM3-303046112OVM3-50507639x65x90
(with wheels)150OVM3-808012146x65x120
46x70x120220OVM3-100100152240OVM3-120120182264OVM3-15015022876x66x160350OVM3-180180273387OVM3-200200300410OVM3-225225342425OVM3-250250380110x80x200
615OVM3-320320486700OVM3-400400608760OVM3-5005007601010OVM3-6006009121145OVM3-8008001216180x100x2201700OVM3-1000100015202000OVM3-120012001824240x100x2102350OVM3-140014002127240x100x220OVM3-1600160024312700OVM1-3313.522x50x3722x50x3720OVM1-5522.525OVM1-10104531OVM1-10104528x60x4338OVM1-15156845OVM1-20209135x60x64
(with wheels)59OVM1-303013781OVM1-5050228Note: the weight and dimensions may be changed without noticeCompany Profile:Founded in 1983, GridStone Electric is a leading manufacturer of automatic voltage stabilizer and transformer. The products currently include digital static voltage stabilizer, digital servo voltage optimizer, power factor correction units, LV and MV transformers and reactors, UPS, Variable Frequency Power Source, Oil Immersed Induction Voltage Regulator. Thanks to over 30 years in the business and on going technical research, GridStone have become a competitive high-tech company, and meet the requirements of a constantly growing number of customers through design, production and service.
Besides standard production, GridStone is flexible and strong at custom design and production according to the customers' specification. Expert training and technical support are available to serve the customers quickly and professionally.
GridStone factories are ISO9001 and ISO14001 certified.
Our History
1983, GridStone factory for automatic voltage stabilizer was started, and thfirst servo voltage stabilizer in
China was successfully produced.
1985. Gridstone factory for transformer was started
1998. New office and factory of voltage stabilizer were started in Shanghai,China.
2002. The first static voltage stabilizer was released, and massive productionstarted at end of the year.
2008. Brand name "Shanghai Voltage Regulator" was started in China.
2009. New types digital voltage stabilizers were released. These newproducts are more fast, more reliable
and more intelligent.
2010. The first frequency and voltage regulator with IGBT is released.
2014. New factory for transformer was started.
2016. GridStone brand name is started to be used for all voltagestabilizers and transformers to be sold
abroad.HOW TO CHOOSE VOLTAGE STABILIZER ?