Documents Protection 11kV Voltage Transformer SZV-10R – Cast-Resin, IEC 61869-3 Certified for Substation & Grid Applications May 30, 2026 / April 24, 2026 by tianming SZV-10R 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications SZV-10R 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The SZV-10R is a cast-resin insulated voltage transformer specifically engineered for operation at the standardized IEC system voltage of 11kV. Designed and manufactured in strict accordance with IEC 61869-3:2011 (“Instrument transformers – Part […] Read more »
Documents Outdoor SZW-10K 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Certified for Substation & Grid Applications May 30, 2026 / April 24, 2026 by tianming SZW-10K 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 SZW-10K 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The SZW-10K 11kV cast-resin voltage transformer is a precision instrument designed for accurate voltage measurement and protection in medium-voltage power systems operating at the standardized IEC nominal voltage of 11kV. Compliant with […] Read more »
Documents PT for Neutral Grounding & Resonant Grounding Systems: Selection, Ferroresonance & Protection Guide (IEC 61869-3, IEEE C57.13) May 30, 2026 by tianming PT for Neutral Grounding & Resonant Grounding Systems: Selection, Ferroresonance & Protection Guide (IEC 61869-3, IEEE C57.13) Meta Description: Comprehensive guide on potential transformer (PT) selection for neutral grounding and resonant grounding (Petersen coil) systems. Covers PT connection, ferroresonance mitigation, protection, and compliance with IEC 61869-3 and IEEE C57.13, including practical engineering examples for MV […] Read more »
Documents Indoor JDJ-3 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 for Substation & Industrial Use May 29, 2026 / April 24, 2026 by tianming JDJ-3 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 JDJ-3 11kV Cast-Resin Voltage Transformer: Application Scenarios per IEC 61869-3 Introduction The JDJ-3 11kV voltage transformer is a cast-resin insulated instrument transformer designed in strict compliance with the international standard IEC 61869-3:2011 (Instrument transformers – Part 3: Additional requirements for inductive voltage transformers). This […] Read more »
Documents CT for Arc Flash Protection & High-Speed Differential: Selection, Response Time & Coordination (IEC 61869-2, IEEE C37.112) May 29, 2026 by tianming CT for Arc Flash Protection & High-Speed Differential: Selection, Response Time & Coordination (IEC 61869-2, IEEE C37.112) Meta Description: Comprehensive guide on current transformer (CT) selection for arc flash protection and high-speed differential applications. Covers response time, saturation resistance, accuracy class, and compliance with IEC 61869-2 and IEEE C37.112, including practical engineering examples for MV/HV […] Read more »
Documents SZV-10R 11kV Cast-Resin Current Transformer for Substation Metering & Protection – IEC 61869-2 Compliant May 29, 2026 / May 2, 2026 by tianming 11kV Cast-Resin Voltage Transformer SZV-10R for Metering and Protection – IEC 61869-3 Standard Introduction to the SZV-10R Voltage Transformer The SZV-10R is a precision-engineered, indoor-type electromagnetic voltage transformer (VT) rated for 11 kV (IEC standard), corresponding to 10 kV nominal system voltage in domestic applications. Designed specifically for medium-voltage distribution networks, this device provides accurate […] Read more »
Documents Cast-Resin SZW-6 11kV Voltage Transformer – IEC 61869-3 Certified for Substation & Industrial Use May 29, 2026 / April 24, 2026 by tianming SZW-6 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications SZW-6 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The SZW-6 11kV cast-resin voltage transformer (VT) is engineered to meet the stringent requirements of the international standard IEC 61869-3, which governs the performance, safety, and accuracy of inductive voltage transformers used in […] Read more »
Documents ZW-10 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 for Substation Applications for high-precision m… May 28, 2026 / April 29, 2026 by tianming JDZW-10R 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications JDZW-10R 11kV Cast-Resin Voltage Transformer – Application Scenarios Under IEC 61869-3 Introduction The JDZW-10R is a single-phase, cast-resin insulated voltage transformer designed for operation in 11kV (IEC standard) medium-voltage networks. Certified to IEC 61869-3, this instrument transformer provides accurate voltage measurement and reliable isolation for […] Read more »
Documents MV/HV Surge Arrester Selection & Testing Guide: Metal-Oxide Varistor (MOV) Technology (IEC 60099-4, IEEE C62.11) May 28, 2026 by tianming MV/HV Surge Arrester Selection & Testing Guide: Metal-Oxide Varistor (MOV) Technology (IEC 60099-4, IEEE C62.11) Meta Description: Comprehensive guide on medium-voltage (MV) and high-voltage (HV) surge arrester selection and testing. Covers metal-oxide varistor (MOV) technology, continuous operating voltage, discharge class, energy rating, and compliance with IEC 60099-4 and IEEE C62.11, including step-by-step testing procedures and […] Read more »
Documents JDZW-35 33kV Cast-Resin Current Transformer for Substation Metering & Protection – IEC 61869-2 Compliant May 28, 2026 / May 2, 2026 by tianming For Substation Metering & Protection: JDZW-35 11kV Cast-Resin Current Transformer per IEC 61869-2 Introduction to the JDZW-35 Current Transformer The JDZW-35 is a high-reliability, indoor-type cast-resin current transformer (CT) engineered for accurate current measurement and protective relay coordination in 11kV (IEC-rated) or 10kV (domestic Chinese system) medium-voltage networks. Designed in strict compliance with IEC 61869-2 […] Read more »
Documents Compliant 11kV JDZW-10R Cast-Resin Voltage Transformer Meets IEC 61869-3 for Substation & Grid Applications May 28, 2026 / April 24, 2026 by tianming JDZW-10R 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Application Scenarios JDZW-10R 11kV Cast-Resin Voltage Transformer: Application Scenarios per IEC 61869-3 Introduction The JDZW-10R is a single-phase, outdoor-type, cast-resin insulated voltage transformer designed for accurate voltage measurement and protection in 11kV medium-voltage (MV) power systems. It complies fully with the international standard IEC 61869-3:2011, which […] Read more »
Documents Application of DZJ-3 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 for Substation & Industrial Use May 27, 2026 / April 24, 2026 by tianming DZJ-3 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications DZJ-3 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The DZJ-3 11kV voltage transformer is a cast-resin insulated instrument transformer designed in strict accordance with the international standard IEC 61869-3:2011, which governs the performance, testing, and safety requirements for inductive voltage transformers […] Read more »
