3kV-12kV Indoor CTs LDZJ1-10 Epoxy Resin Cast Single-Turn-Through Current Transformer May 15, 2026 / May 15, 2026 by tianming LDZJ1-10 indoor epoxy resin cast single-turn-through current transformer for 10kV, 11kV and 12kV class switchgear. Designed for current measurement, energy metering and relay protection, with resin casting insulation, annealed ring core, wall-through mounting base, earthing bolt and fixed cabinet installation. Read more »
Documents KZB-0 35kV Cast-Resin Current Transformer: IEC 61869-Compliant for Metering & Protection Applications May 15, 2026 / April 22, 2026 by tianming Introduction The KZB-0 Current Transformer is a high-voltage instrument transformer specifically engineered for accurate current measurement and protection applications in 35kV power systems. Designed to meet stringent international standards—including IEC 61869, GB/T 20840, and DL/T 725—the KZB-0 ensures reliable performance under demanding operational conditions typical of transmission and distribution networks. Its primary function is to […] Read more »
3kV-12kV Indoor CTs LMZ-10, LMZJ1-10 Wall-Through Busbar-Type Cast Resin Current Transformer May 15, 2026 / May 15, 2026 by tianming LMZ-10 / LMZJ1-10 indoor wall-through busbar-type epoxy resin cast current transformer for 10kV, 11kV and 12kV class medium-voltage switchgear. Designed for current measurement, energy metering and relay protection, with 5A secondary output, 300A–5000A primary current range, 0.5/3 and 0.5/10P accuracy combinations, and compact busbar through-type installation. Read more »
3kV-12kV Indoor CTs LAZBJ-10, LFZBJ-10 Wall-Through Epoxy Resin Cast Current Transformer May 15, 2026 / May 15, 2026 by tianming LAZBJ-10 / LFZBJ-10 indoor wall-through epoxy resin cast current transformer for international 10kV, 11kV and 12kV class medium-voltage switchgear. Designed for current measurement, energy metering and relay protection, with 20A–400A primary current options, 1A or 5A secondary output, 12/42/75kV insulation level and 0.2S/0.5/10P10 accuracy combinations. Read more »
3kV-12kV Indoor CTs LFZBJ9-10, LAZBJ-10 Wall-Through Epoxy Resin Cast Current Transformer May 15, 2026 / May 15, 2026 by tianming LFZBJ9-10 / LAZBJ-10 indoor wall-through epoxy resin cast current transformer for international 10kV, 11kV and 12kV class medium-voltage switchgear. Designed for current measurement, energy metering and relay protection, with 20A–400A primary current options, 1A or 5A secondary output, 12/42/75kV insulation level and 0.2S/0.5/10P10 accuracy combinations. Read more »
3kV-12kV Indoor CTs LFDZ2-10 Indoor Wall-Through Epoxy Resin Cast Current Transformer May 15, 2026 / May 15, 2026 by tianming LFDZ2-10 indoor wall-through epoxy resin cast current transformer for international 10kV, 11kV and 12kV class medium-voltage systems. Designed for current measurement, energy metering, relay protection and differential protection, with 75A–400A primary current options, 5A secondary output, 11.5/42/75kV insulation level and vertical or horizontal installation. Read more »
3kV-12kV Indoor CTs LFC(D)-10 Indoor Multi-Turn Wall-Through Current Transformer May 15, 2026 / May 15, 2026 by tianming LFC-10 / LFCD-10 indoor multi-turn wall-through current transformer is designed for 10kV, 11kV and 12kV medium-voltage switchgear. It supports current measurement, energy metering, relay protection and differential protection, with porcelain insulation, 12/42/75kV insulation level, 5A secondary output and 30A–400A primary current ratings. Read more »
3kV-12kV Indoor CTs LDC-10, LDCD-10 Indoor Wall-Through Current Transformer, 10kV–12kV May 15, 2026 / May 15, 2026 by tianming LDC-10 / LDC(D)-10 indoor wall-through current transformer for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, electric energy metering, relay protection and differential protection, with porcelain-insulated primary conductor, 12/42/75kV IEC-style insulation level, 5A secondary output and 600A–1500A reference primary current ratings. Read more »
Documents PT Ferroresonance & Mitigation in MV Systems: Mechanisms, Detection & Suppression Guide (IEC 61869-3, IEEE C57.13) May 15, 2026 by tianming PT Ferroresonance & Mitigation in MV Systems: Mechanisms, Detection & Suppression Guide (IEC 61869-3, IEEE C57.13) Meta Description: Comprehensive guide on voltage transformer (PT) ferroresonance in medium-voltage systems. Covers mechanisms, detection methods, mitigation techniques, and compliance with IEC 61869-3 and IEEE C57.13. Includes case studies, testing procedures, and troubleshooting for ferroresonance suppression in ungrounded, resistance-grounded, […] Read more »
Documents Outdoor/Indoor 11kV Current Transformer LJ-2 | 0.2S Metering, 5P Protection, IP54 Cast-Resin CT May 15, 2026 / April 22, 2026 by tianming Introduction The LJ-2 Current Transformer (CT) is a high-voltage instrument transformer specifically engineered for accurate current measurement and protection applications in 10 kV power distribution systems. Designed to meet stringent international standards such as IEC 61869-1 and IEC 61869-2, the LJ-2 ensures reliable performance under diverse operational conditions, including transient overloads, harmonic distortions, and environmental […] Read more »
3kV-12kV Indoor CTs LDC(D)-10, LMC(D)-10 Indoor Wall-Through Type Current Transformer May 14, 2026 / May 15, 2026 by tianming LDC(D)-10 / LMC(D)-10 indoor wall-through and bus-type current transformers for 10kV, 11kV and 12kV power equipment. Designed for current measurement, energy metering, signal sampling, relay protection and microcomputer protection, with IEC-style 12/42/75kV insulation coordination, 5A/1A secondary output, differential protection options and high-current busbar configurations. Read more »
3kV-12kV Indoor CTs LMZ-6/10, LM-6/10 Indoor Through Hole Current Transformer May 14, 2026 / May 15, 2026 by tianming LMZ-6, LMZ-10, LM-6 and LM-10 indoor through-hole epoxy resin cast current transformers for 6kV, 10kV, 11kV and 12kV switchgear. Designed for current measurement, energy metering and relay protection, with 7.2/32/60kV or 12/42/75kV insulation level, 5A/1A secondary output, 0.5/1/3 accuracy classes, 10P protection option and customizable wiring diagrams. Read more »
