3kV-12kV Indoor CTs LDJ-10Q, LDJ-10/210-L(Y) Current Transformer, KYN Handcart Switchgear May 14, 2026 / May 14, 2026 by tianming LDJ-10Q and LDJ-10/210-L(Y)(Y) indoor epoxy resin cast current transformers for KYN handcart-type switchgear. Designed for current measurement, electric energy metering and relay protection in 10kV, 11kV and 12kV systems, with 12/42/75kV insulation level, 5A/1A secondary output and one primary terminal/contact box structure. Read more »
Documents LJK-100240 11kV Outdoor Current Transformer: 0.2S Accuracy & IEC 61869 for Metering & Protection May 14, 2026 / April 22, 2026 by tianming Introduction The LJK-100240 Current Transformer is a high-precision, outdoor-type instrument transformer specifically engineered for accurate current measurement and protection in 10 kV medium-voltage power systems. Designed to meet the stringent requirements of modern electrical distribution networks, this current transformer (CT) ensures reliable operation under diverse environmental and electrical conditions. It plays a critical role in […] Read more »
Documents Combined Transformer (CT+PT) Technical Guide: Selection, Testing & Application for MV Metering & Protection (IEC 61869) May 14, 2026 by tianming Combined Transformer (CT+PT) Technical Guide: Selection, Testing & Application for MV Metering & Protection (IEC 61869) Meta Description: Comprehensive guide on combined transformers (CT+PT) for medium-voltage metering and protection. Covers construction, accuracy classes, selection methodology, testing procedures, and compliance with IEC 61869. Includes application examples, wiring practices, and troubleshooting for JLS series combined transformers in […] Read more »
Documents Outdoor/Indoor 11kV Cast-Resin Current Transformer LFS-10 – IEC 61869-2 Compliant for current transformer Applications May 14, 2026 / May 2, 2026 by tianming Outdoor/Indoor 11kV Cast-Resin Current Transformer LFS-10 – IEC 61869-2 Compliant Introduction to the LFS-10 Current Transformer The LFS-10 is a medium-voltage cast-resin current transformer (CT) engineered for precise current measurement and robust protection functionality in 11kV (IEC standard) or 10kV (domestic system equivalent) power networks. Designed for both indoor switchgear and outdoor pole-mounted applications, this […] Read more »
Documents LJM-1 11kV Cast-Resin Current Transformer: IEC 61869-2 Compliant for Outdoor/Indoor Metering & Protection May 14, 2026 / April 22, 2026 by tianming Introduction The LJM-1 Current Transformer is a high-precision, resin-insulated instrument transformer specifically engineered for accurate current measurement and protection applications in 10kV medium-voltage power systems. Designed to meet stringent international standards—including IEC 61869-2, GB/T 20840.2, and DL/T 725—the LJM-1 ensures reliable performance under demanding operational conditions typical of industrial, utility, and commercial electrical installations. Its […] Read more »
Documents CT-35K 33kV Cast-Resin Current Transformer for Substation Metering and Protection – IEC 61869-2 Certified May 14, 2026 / May 2, 2026 by tianming CT-35K 33kV Cast-Resin Current Transformer for Substation Metering and Protection – IEC 61869-2 Certified Introduction to the CT-35K Current Transformer The CT-35K is a high-reliability, cast-resin insulated current transformer engineered for operation in 33 kV (IEC standard) or 35 kV (domestic system equivalent) electrical networks. Designed in strict compliance with IEC 61869-2 and GB/T 20840.2, […] Read more »
3kV-12kV Indoor CTs LQJ(C)-10 Semi-Enclosed Epoxy Resin Cast Current Transformer, 10kV–12kV May 13, 2026 / May 15, 2026 by tianming LQJ(C)-10 indoor semi-enclosed epoxy resin cast current transformer for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, electric energy metering, relay protection and differential protection, with IEC-style 12/42/75kV insulation level, coiled-type primary structure, 5A/1A secondary output, top primary terminals and side secondary terminal block. Read more »
3kV-12kV Indoor CTs LQZJ-10 Coiled-Type Epoxy Resin Cast Current Transformer, 10kV–12kV May 13, 2026 / May 13, 2026 by tianming LQZJ-10 indoor coiled-type epoxy resin cast current transformer for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, electric energy metering and relay protection, with IEC-style 12/42/75kV insulation level, 5A/1A secondary output, fully enclosed post-type structure, and standard or customized current ratios. Read more »
3kV-12kV Indoor CTs LFSQ-10 Reinforced Epoxy Resin Cast Current Transformer, 11kV–12kV May 13, 2026 / May 15, 2026 by tianming LFSQ-10 reinforced indoor epoxy resin cast current transformer for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, energy metering and relay protection, with 12/42/75kV IEC-style insulation level, 5A/1A secondary output, 0.2/0.5 and 10P accuracy options, enhanced thermal/dynamic stability and 10P burden curve reference. Read more »
Documents ZWJ-12 11kV Outdoor Voltage Transformer: IEC 61869-3 Compliant for Metering & Protection Systems May 13, 2026 / April 22, 2026 by tianming Introduction The ZWJ-12 voltage transformer is a critical component in medium-voltage power distribution systems, specifically engineered for reliable and accurate voltage measurement and protection in 10 kV networks. Designed in compliance with international standards such as IEC 61869-3 and GB/T 20840.3, the ZWJ-12 ensures high performance under diverse operational conditions, including industrial, commercial, and utility-scale […] Read more »
3kV-12kV Indoor CTs LFSB-10, LFSB-10Q , LZZB(J)-10 Epoxy Resin Cast Current Transformer May 13, 2026 / May 15, 2026 by tianming LFS-10, LFSB-10, LFS-10Q, LFSB-10Q, LZZB-10 and LZZBJ-10 indoor epoxy resin cast current transformers for 10kV, 11kV and 12kV switchgear. Designed for current measurement, energy metering and relay protection, with 12/42/75kV insulation level, 5A/1A secondary output, 0.2/0.5 and 10P10 accuracy options, plus 10P accuracy limit factor curve reference. Read more »
3kV-12kV Indoor CTs LZJC(D)-10, LZJC-12 indoor epoxy cast-resin Current Transformer May 13, 2026 / May 15, 2026 by tianming LZJC-10, LZJC(D)-10, LZJC-12 and LZJC(D)-12 indoor epoxy cast-resin current transformers for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, energy metering, relay protection and differential protection, with 5A/1A secondary output, IEC-based insulation level, and standard or customized current ratios. Read more »
