Gridstone Electric Co., Ltd.  

Product Name: Power Electrical Electronic Low Voltage Isolation Transformer Auto Transformer K Rate Dry Transformer Model NO.: SGB Brand: Gridstone Shape of Core: Ring Frequency Characteristics: Power Frequency Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Isolation Transformer Certification: ISO9001-2000, CCC Winding Type: Separated Winding Transformer Cooling Method: Dry-type Transformer Core: Core-type Transformer Phase: Three Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio Trademark: GridStone Transport Package: Wooden Box Specification: 1kVA to 3000kVA Origin: Shanghai, China Product Description Features1. Galvanic isolation between the stabilizer and the main power supply 2. Change the voltage grade3. Improve the balance of the phase voltage and provide a steady neutral point.4. Protection from voltage surge and cancel the triplen harmonics.SpecificationCapacity1KVA-3000KVAVoltage Grade<= AC1140VInput Voltage rangeRated voltage±10%Output VoltageRated voltage±3% when input voltage is at the rated voltage.Frequency50Hzor60HzDielectric Strength3500V / 10mA / 60sLoadingcapabilityWhen the transformer is 100% loaded, it can take 3 times current in short time.Insulation≥100MΩ(DC500V)Insulation GradeFWorking Temperature-15°C--+45°CHumidity<95℅Temperature increase<100KNoise<55dbSuccessful Projects:TimeCustomerProductSolution for the problemFeb.2018SiemensAVR/Transformer 800kVARegulate the voltage for the product testing in Siemens factory of frequency converter.Feb. 2018GEAVR 200kVA;Isolation transformer 150kVA, 100kVAProvide stable power For GE medical equipment in PhilippinesJan.2018SiemensCombined unit of AVR and Transformer 200kVA;Isolation transformer 150kVA, 100kVAProvide stable power for Siemens medical equipment in Philippine2011 to nowElekta(famous medical equipment company from Sweden)150kVA Digital Static AVR120pcs per year.Stabilize the voltage for their medical equipment.Oct. 2017Borgwarner OptiV Plus voltage optimizer/ stabilizer2500kVA, 2pcsTo provide stable voltage to the production line and save energy2013CRRCAir cooling Automatic voltage regulator 800kVARegulate and stabilize the voltage for production and testing for China High Speed TrainsDec.2014China National Chemical Engineering Co.Ltd.OptiV Plus voltage optimizer/ stabilizer2500kVA, 2pcsThis is to provide safe and stable voltage for projects to destroy the Japanese chemical weapons left during World War II. Save the energy cost.June. 2014Shanghai YunyangOptiV MAX voltage stabilizer 1250kVA, 2pcsStabilize the power for the stadium.Save the energy cost. June 2014McQuay InternationalOptiV Plus voltage regulator/ optimizer2500kVA , 1pcRegulate the voltages for the production of air conditioners. Drop the voltages to 380V, Save the energy cost.2013China ZSHDSmart Static AVR combined with Isolation Transformer.OptiV MAX200kVA, 300kVARegulate voltage for production of chemical products.June 2013OKUMA(Japan)Air cooling AVR 100kVARegulate input voltage for OKUMA Numerical Control Machine2014Befficient (Australia)Smart control AVR 150kVA, 200kVA, 400kVAOptimize the voltages for the customers for energy saving.Product Detailsabout usAs the inventor and manufacturer of the first SBW compensated power regulator in China, Shanghai voltage regulator factory has excellent and reliable technology. We have mature technology in small power voltage regulator, high power voltage regulator, variable frequency power supply and voltage regulator.In October 1997, the first set of sbw-2000kva high-power compensated AC voltage regulator developed and manufactured by us was successfully put on the market in China, marking that China's high-power compensated voltage regulator has entered a mature stage. In August 1998, the State Science and Technology Commission issued the document "gkcbbz No. 121" to promote our products to the whole country.In December 2010, we launched variable-frequency power supply to the market, and in June 2012, we successfully launched CFP series of variable-frequency, frequency stabilized, voltage regulated power supply. In August 2014, sbw-st-2500kva AC400V ± 30% compensation voltage regulating power supply with the widest power range in China was successfully produced.From 2015 to 2018, we customized a number of special test and test power supplies for Siemens, abb, Schneider, Omron and other foreign electric companies.Our products are well-known for their mature and reliable applications in various industries such as transportation, electric power, petrochemical, chemical industry, energy, medical treatment, scientific research, broadcasting, communication, agriculture, military industry, automation, construction, etc.Over the past 30 years, our customers have been in various provinces and cities in China, and exported to different countries and regions in the world, such as Asia, Europe, Africa, America, etc. From China's aid one to one belt, one road and other overseas projects, it has made great contributions to the special power consumption environment of these countries.Company 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 History1983, GridStone factory for automatic voltage stabilizer was started, and thfirst servo voltage stabilizer in China was successfully produced.1985. Gridstone factory for transformer was started1998. 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.