Established in 1991, Sunghan Transtek Co., Ltd. specializes in nickel alloy processing technology, manufacturing precision Current Transformers (CTs) and current sensors capable of detecting currents from micro-ampere to overload ranges. The company's product portfolio includes Zero Phase Current Transformers (ZCTs), DC Immune Current Transformers, and Split Type CTs, supplied to both domestic and international markets. A key focus is on developing high-precision products with excellent temperature characteristics and minimal output error, alongside providing customized solutions to meet specific client needs. Sunghan Transtek's technological prowess and quality are validated by numerous invention patents and international certifications, positioning it as a specialized power and electronic component manufacturer.Establishedin1991,SunghanTranstekCo.,Ltd.specializesinnickelalloyprocessingtechnology,manufacturingprecisionCurrentTransformers(CTs)andcurrentsensorscapableofdetectingcurrentsfrommicro-amperetooverloadranges.Thecompany'sproductportfolioincludesZeroPhaseCurrentTransformers(ZCTs),DCImmuneCurrentTransformers,andSplitTypeCTs,suppliedtobothdomesticandinternationalmarkets.Akeyfocusisondevelopinghigh-precisionproductswithexcellenttemperaturecharacteristicsandminimaloutputerror,alongsideprovidingcustomizedsolutionstomeetspecificclientneeds.SunghanTranstek'stechnologicalprowessandqualityarevalidatedbynumerousinventionpatentsandinternationalcertifications,positioningitasaspecializedpowerandelectroniccomponentmanufacturer.
Key Products/TechnologiesKeyProducts/Technologies
**Zero Phase Current Transformer (ZCT)**: A critical component for ground fault circuit interrupters and earth leakage protection, featuring superior temperature characteristics, minimal output error, and stable balance characteristics even at high sensitivity for large currents. Specifications include an output voltage ratio of -20~80℃ based on 20℃ and a balance characteristic of V2: 10mV max.**ZeroPhaseCurrentTransformer(ZCT)**:Acriticalcomponentforgroundfaultcircuitinterruptersandearthleakageprotection,featuringsuperiortemperaturecharacteristics,minimaloutputerror,andstablebalancecharacteristicsevenathighsensitivityforlargecurrents.Specificationsincludeanoutputvoltageratioof-20~80℃basedon20℃andabalancecharacteristicofV2:10mVmax.
**Accuracy Grade Current Transformer (AGCT)**: Precision current transformers designed for accurate current detection across a wide range, from micro to overload currents, ensuring stable and precise current control. The company mass-produces Advance-E Type and G-Type precision CTs for high-quality electronic energy meters.**AccuracyGradeCurrentTransformer(AGCT)**:Precisioncurrenttransformersdesignedforaccuratecurrentdetectionacrossawiderange,frommicrotooverloadcurrents,ensuringstableandprecisecurrentcontrol.Thecompanymass-producesAdvance-ETypeandG-TypeprecisionCTsforhigh-qualityelectronicenergymeters.
**DC Immune Current Transformer (DCCT)**: High-precision CTs that effectively resolve phase angle issues and temperature-induced errors commonly found in conventional DC immune CTs. Development of 10㎂ ultra-precision DC sensors and 0.5㎃~1A DC ZCTs completed.**DCImmuneCurrentTransformer(DCCT)**:High-precisionCTsthateffectivelyresolvephaseangleissuesandtemperature-inducederrorscommonlyfoundinconventionalDCimmuneCTs.Developmentof10㎂ultra-precisionDCsensorsand0.5㎃~1ADCZCTscompleted.
**Commercial Grade Current Transformer (CGCT)**: General-purpose current transformers offering reliable current control through proprietary technology development.**CommercialGradeCurrentTransformer(CGCT)**:General-purposecurrenttransformersofferingreliablecurrentcontrolthroughproprietarytechnologydevelopment.
**Split Type Current Transformer**: Designed for ease of installation, with 5 models developed and highly acclaimed for export markets.**SplitTypeCurrentTransformer**:Designedforeaseofinstallation,with5modelsdevelopedandhighlyacclaimedforexportmarkets.
**Core of High Permeability Material**: Essential core material characterized by uniform output, stable temperature characteristics, high flatness, high permeability, and a burr-free finish. Custom dimensions are available beyond standard sizes.**CoreofHighPermeabilityMaterial**:Essentialcorematerialcharacterizedbyuniformoutput,stabletemperaturecharacteristics,highflatness,highpermeability,andaburr-freefinish.Customdimensionsareavailablebeyondstandardsizes.
**Nickel Alloy Processing Technology**: Specialized expertise in handling and processing nickel alloys, developed through continuous research since the company's establishment in 1991.**NickelAlloyProcessingTechnology**:Specializedexpertiseinhandlingandprocessingnickelalloys,developedthroughcontinuousresearchsincethecompany'sestablishmentin1991.
Core AdvantagesCoreAdvantages
**Advanced Nickel Alloy Processing Technology**: Over 30 years of experience in specialized nickel alloy handling and accumulated know-how in manufacturing precision components.**AdvancedNickelAlloyProcessingTechnology**:Over30yearsofexperienceinspecializednickelalloyhandlingandaccumulatedknow-howinmanufacturingprecisioncomponents.
**Comprehensive Current Detection and High-Precision Product Range**: A diverse portfolio of high-performance products, including precision CTs, DC immune CTs, and ZCTs, covering micro to overload current detection.**ComprehensiveCurrentDetectionandHigh-PrecisionProductRange**:Adiverseportfolioofhigh-performanceproducts,includingprecisionCTs,DCimmuneCTs,andZCTs,coveringmicrotooverloadcurrentdetection.
**Superior Quality and Stability**: Exceptional temperature characteristics and low output error in specialized ZCTs, maintained balance characteristics for high-sensitivity large-current ZCTs, and advanced technology to resolve phase angle and temperature errors in DC immune CTs.**SuperiorQualityandStability**:ExceptionaltemperaturecharacteristicsandlowoutputerrorinspecializedZCTs,maintainedbalancecharacteristicsforhigh-sensitivitylarge-currentZCTs,andadvancedtechnologytoresolvephaseangleandtemperatureerrorsinDCimmuneCTs.
**Customized Development and Rapid Response System**: Flexible manufacturing capabilities to develop products with any desired characteristics beyond standard offerings, and a system for rapid production using various standard dimensions.**CustomizedDevelopmentandRapidResponseSystem**:Flexiblemanufacturingcapabilitiestodevelopproductswithanydesiredcharacteristicsbeyondstandardofferings,andasystemforrapidproductionusingvariousstandarddimensions.
**International Quality Certifications and Patents**: Verified technological strength and reliability through UL, CE, ISO 9001, ISO 14001, INNOBIZ certifications, and numerous invention patents.**InternationalQualityCertificationsandPatents**:VerifiedtechnologicalstrengthandreliabilitythroughUL,CE,ISO9001,ISO14001,INNOBIZcertifications,andnumerousinventionpatents.
**Vertically Integrated Production Process**: Most production processes are conducted in-house, facilitating the accumulation of comprehensive technical know-how and ensuring robust quality control.**VerticallyIntegratedProductionProcess**:Mostproductionprocessesareconductedin-house,facilitatingtheaccumulationofcomprehensivetechnicalknow-howandensuringrobustqualitycontrol.
Target IndustrieTargetIndustrie
**Power Industry**: Current measurement and control in electronic energy meters, smart grid systems, power generation and nuclear plants, and heavy electrical industries.**PowerIndustry**:Currentmeasurementandcontrolinelectronicenergymeters,smartgridsystems,powergenerationandnuclearplants,andheavyelectricalindustries.
**Safety and Disaster Prevention Industry**: Electrical safety and disaster prevention systems, including ground fault circuit interrupters and ZCTs for fire leakage alarms.**SafetyandDisasterPreventionIndustry**:Electricalsafetyanddisasterpreventionsystems,includinggroundfaultcircuitinterruptersandZCTsforfireleakagealarms.
**Industrial Automation**: Current sensing and monitoring in various industrial equipment and systems.**IndustrialAutomation**:Currentsensingandmonitoringinvariousindustrialequipmentandsystems.
**Home Appliances**: Appliances requiring current measurement and protection functions.**HomeAppliances**:Appliancesrequiringcurrentmeasurementandprotectionfunctions.
Major MarketsMajorMarkets
China (Shandong new factory completion)China(Shandongnewfactorycompletion)
Certifications/PatentsCertifications/Patents
**UL Certification**: Compliance with international product safety standards.**ULCertification**:Compliancewithinternationalproductsafetystandards.
**CE Certification**: Adherence to European Union standards for product safety, health, and environmental protection.**CECertification**:AdherencetoEuropeanUnionstandardsforproductsafety,health,andenvironmentalprotection.
**ISO 9001 Certification**: Compliance with international standards for quality management systems.**ISO9001Certification**:Compliancewithinternationalstandardsforqualitymanagementsystems.
**ISO 14001 Certification**: Compliance with international standards for environmental management systems.**ISO14001Certification**:Compliancewithinternationalstandardsforenvironmentalmanagementsystems.
**INNOBIZ (Innovative Small and Medium Business) Certification**: Recognized by the Small and Medium Business Administration for technological innovation capabilities.**INNOBIZ(InnovativeSmallandMediumBusiness)Certification**:RecognizedbytheSmallandMediumBusinessAdministrationfortechnologicalinnovationcapabilities.
**Selected as a Specialized Parts and Materials Company by the Ministry of Trade, Industry and Energy**: Recognition as a key component and material specialist contributing to national industrial development.**SelectedasaSpecializedPartsandMaterialsCompanybytheMinistryofTrade,IndustryandEnergy**:Recognitionasakeycomponentandmaterialspecialistcontributingtonationalindustrialdevelopment.
**Invention Patent Registration for Pin type ZCT**: Patent registered for Pin type ZCT, filed in October 1997.**InventionPatentRegistrationforPintypeZCT**:PatentregisteredforPintypeZCT,filedinOctober1997.
**Patent Application for Magnetic Core of Zero Phase Current Transformer Using Pulse Cap and its Manufacturing Method**: Patent application filed in December 2018 for ZCT magnetic core and manufacturing method.**PatentApplicationforMagneticCoreofZeroPhaseCurrentTransformerUsingPulseCapanditsManufacturingMethod**:PatentapplicationfiledinDecember2018forZCTmagneticcoreandmanufacturingmethod.
**Patent Registration for Zero Phase Current Transformer Including Case Cover and its Manufacturing Method**: Patent registered in January 2013 for ZCT case cover and manufacturing method.**PatentRegistrationforZeroPhaseCurrentTransformerIncludingCaseCoveranditsManufacturingMethod**:PatentregisteredinJanuary2013forZCTcasecoverandmanufacturingmethod.
**Patent Application for Current Transformer with Built-in Self-Diagnosis Circuit**: Patent application filed in May 2007 for CTs with integrated self-diagnosis circuits.**PatentApplicationforCurrentTransformerwithBuilt-inSelf-DiagnosisCircuit**:PatentapplicationfiledinMay2007forCTswithintegratedself-diagnosiscircuits.
**Invention Patent Registration for ZCT with Built-in Electronic Circuit (Ring Cob)**: Patent registered in November 2005 for ZCT (Ring Cob) with an integrated electronic circuit.**InventionPatentRegistrationforZCTwithBuilt-inElectronicCircuit(RingCob)**:PatentregisteredinNovember2005forZCT(RingCob)withanintegratedelectroniccircuit.
**Type Approval Acquisition for Fire Leakage Alarm ZCT 100A/225A/400A**: Acquired type approval for fire leakage alarm ZCTs in October 2007.**TypeApprovalAcquisitionforFireLeakageAlarmZCT100A/225A/400A**:AcquiredtypeapprovalforfireleakagealarmZCTsinOctober2007.