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 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 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 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 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 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 »
Documents Testing JDZ9-10 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 for Substation & Grid Applications May 27, 2026 / April 24, 2026 by tianming JDZ9-10 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Application Scenarios JDZ9-10 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Application Scenarios Introduction The JDZ9-10 11kV voltage transformer is a cast-resin insulated instrument transformer engineered to meet the stringent requirements of IEC 61869-3:2011, the international standard governing inductive voltage transformers for measurement and protection applications. […] Read more »
Documents Instrument Transformer Oil Analysis & DGA Guide: Dissolved Gas, Moisture & Furan Testing (IEC 60422, IEEE C57.106) May 27, 2026 by tianming Instrument Transformer Oil Analysis & DGA Guide: Dissolved Gas, Moisture & Furan Testing (IEC 60422, IEEE C57.106) Meta Description: Comprehensive guide on instrument transformer oil analysis and dissolved gas analysis (DGA). Covers sampling, testing, interpretation, moisture, furan, and PCB testing, compliance with IEC 60422 and IEEE C57.106, and practical engineering examples for oil-immersed CTs and […] Read more »
Documents Maintenance Guide for REL-10 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 May 26, 2026 / April 24, 2026 by tianming REL-10 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications REL-10 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The REL-10 11kV cast-resin voltage transformer (VT) is engineered to meet the stringent requirements of IEC 61869-3, the international standard governing instrument transformers for measurement and protection in alternating current systems. Designed specifically […] Read more »
Documents JDZW-35 33kV Cast-Resin Current Transformer for Substation Metering & Protection – IEC 61869-2 Compliant May 26, 2026 / May 2, 2026 by tianming For Substation Metering & Protection: JDZW-35K 11kV Cast-Resin Voltage Transformer per IEC 61869-3 Introduction to the JDZW-35K Voltage Transformer The JDZW-35K is a single-phase, outdoor-rated cast-resin voltage transformer (VT) designed for accurate voltage measurement and reliable protective relay operation in medium-voltage distribution systems operating at 11kV (IEC standard) or 10kV (domestic Chinese system). As a […] Read more »
Documents Outdoor RZL-10 11kV Cast-Resin Voltage Transformer Compliant with IEC 61869-3 for Substation & Grid Use May 26, 2026 / April 24, 2026 by tianming RZL-10 11kV Cast-Resin Voltage Transformer – IEC 61869-3 Compliant Applications RZL-10 11kV Cast-Resin Voltage Transformer – Application Scenarios per IEC 61869-3 Introduction The RZL-10 11kV cast-resin voltage transformer is engineered to meet the stringent requirements of the international standard IEC 61869-3, which governs the performance, safety, and reliability of inductive voltage transformers used in alternating […] Read more »
