3kV-12kV Indoor CTs 10KV Current Transformer LZZBJ9-10 A,B,C 10kV Indoor Cast-Resin Current Transformer May 20, 2026 / May 21, 2026 by tianming LZZBJ9-10 A/B/C is a 10kV indoor cast-resin current transformer for MV switchgear. Designed for metering and protection, with multi-core options, 1A/5A secondary output, and Ith/Idyn ratings compliant with IEC 61869 and GB standards. Read more » recommended
3kV-12kV Indoor CTs LZZQB6-12, LZZB(J)6-12Q Epoxy Resin Cast Current Transformer May 20, 2026 / May 20, 2026 by tianming LZZQB6-10, LZZQB6-10, LZZQB6-12, LZZB(J)6-12Q and LZZBJ6-12 indoor single-phase epoxy resin cast current transformers for 10kV, 11kV and 12kV switchgear. Designed for current measurement, energy metering and relay protection, with IEC 12/42/75kV insulation level, 5A/1A secondary output, 0.2S/0.5S metering and 5P/10P protection options, plus customized current ratios. Read more »
3kV-12kV Indoor CTs LA2-10, LAJ-10 (LFZBJ-10GY) Wall-Through Cast-Resin Current Transformer May 20, 2026 / May 20, 2026 by tianming LA2-10 / LAJ-10 (LFZBJ-10GY) indoor wall-through epoxy cast-resin current transformer for 11kV and 12kV class IEC-oriented switchgear. Designed for current measurement, energy metering and relay protection, with 50A–630A primary current range, 1A or 5A secondary output, 12/42/75kV insulation level, 0.2/0.5 metering accuracy and 10P10 protection class. Read more »
3kV-12kV Indoor CTs LZZBJ9-10LS/150(L) Epoxy Cast-Resin Slot-Type Current Transformer May 20, 2026 / May 20, 2026 by tianming LZZBJ9-10LS/150 and LZZBJ9-10LS/150L indoor epoxy cast-resin slot-type current transformers for 10 kV, 11 kV and 12 kV class switchgear. Designed for vertical busbar slot installation with 5 A or 1 A secondary output, 12/42/75 kV insulation level and selectable metering/protection accuracy combinations. Read more »
3kV-12kV Indoor CTs LJZN2-10 Epoxy Cast-Resin State Grid Metering Current Transformer May 20, 2026 / May 20, 2026 by tianming LJZN2-10 indoor epoxy cast-resin State Grid metering current transformer for 10 kV, 11 kV and 12 kV class switchgear. Designed for high-current utility metering applications from 800 A to 2500 A, with 0.2S / 0.2S accuracy, 15/15 VA rated output, 5 A or 1 A secondary current and Q/GDW 11681-2017 standard reference. Read more »
3kV-12kV Indoor CTs LJZN1-10 Epoxy Cast-Resin State Grid Metering Current Transformer May 20, 2026 / May 20, 2026 by tianming LJZN1-10 indoor epoxy cast-resin metering current transformer for 10 kV, 11 kV and 12 kV class switchgear and State Grid-style metering cabinets. Designed for energy metering applications with 0.2S / 0.2S accuracy, 5 A or 1 A secondary output, 12/42/75 kV insulation level and Q/GDW 11681-2017 standard reference. Read more »
3kV-12kV Indoor CTs LZZBJ9-10C2Q/180 Epoxy Cast-Resin Current Transformer 12kV 13.8kV 15kV May 20, 2026 / May 20, 2026 by tianming LZZBJ9-10C2/180 and LZZBJ9-10C2Q/180/3 indoor epoxy cast-resin current transformers for 12 kV, 11 kV, 13.8 kV and 15 kV switchgear systems. The combined 180 platform supports measurement, metering and relay protection with 5A or 1A secondary output, 12/42/75 kV insulation coordination and configurable accuracy combinations. Read more »
Documents JDZ9-10 10kV Voltage Transformer: IEC-Compliant Indoor Cast-Resin VT for Metering & Protection May 20, 2026 / April 22, 2026 by tianming Introduction The JDZ9-10 voltage transformer is a critical component in medium-voltage power systems, specifically engineered for accurate voltage measurement and reliable protection in 10 kV networks. As a resin-insulated, indoor-type instrument transformer, the JDZ9-10 offers high dielectric strength, excellent thermal stability, and long-term operational reliability under varying load conditions. Its compact design and robust construction […] Read more »
Documents CT Selection for Generator Protection: Transient Performance, Saturation & Relay Coordination Guide (IEC 61869-2, IEEE C57.13) May 20, 2026 by tianming CT Selection for Generator Protection: Transient Performance, Saturation & Relay Coordination Guide (IEC 61869-2, IEEE C57.13) Meta Description: Comprehensive guide on current transformer (CT) selection for generator protection. Covers transient performance, saturation, relay coordination, and compliance with IEC 61869-2 and IEEE C57.13. Includes selection methodology, testing procedures, and troubleshooting for generator differential, stator ground fault, […] Read more »
3kV-12kV Indoor CTs LZZBJ9-10C8/210/2S (4S) Indoor Epoxy Cast-Resin Current Transformer May 19, 2026 / May 20, 2026 by tianming Product Overview The LZZBJ9-10C8/210/2S and LZZBJ9-10C8/210/4S current transformers are indoor epoxy cast-resin, fully enclosed support-type current transformers for medium-voltage switchgear. This combined product page covers both the 2S dual-secondary configuration and the 4S multi-secondary configuration under the same 210 structural platform. The C8/210 platform is designed for medium- and high-current indoor switchgear applications where stable […] Read more »
3kV-12kV Indoor CTs LZZBJ9-10(225b) Indoor Epoxy Cast-Resin High-Voltage Current Transformer May 19, 2026 / May 19, 2026 by tianming LZZBJ9-10(225b) indoor epoxy cast-resin High-Voltage current transformer for 10kV, 11kV and 12kV class switchgear. Designed for 3000A to 5000A feeder applications, with 30VA output, 63kA short-time thermal current, 160kA dynamic current and large 225b support body for busbar connection. Read more »
3kV-12kV Indoor CTs LZZBJ9-12/185b/4S, AS12/185b/4S Epoxy Cast-Resin Current Transformer May 19, 2026 / May 19, 2026 by tianming LZZBJ9-12/185b/4S, also supplied as AS12/185b/4S, is an indoor epoxy cast-resin current transformer for 10kV, 11kV and 12kV class switchgear. The 185b support body and 4S multi-secondary design support metering, measurement, relay protection and backup protection, with 1A or 5A secondary output, 12/42/75kV insulation coordination and IEC-oriented technical selection. Read more »
