3kV-12kV Indoor CTs LQJ(C)-10 Semi-Enclosed Epoxy Resin Cast Current Transformer, 10kV–12kV May 13, 2026 / July 20, 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 / July 20, 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 / July 20, 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 / July 20, 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 / July 20, 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 »
3kV-12kV Indoor CTs LZJC6-10/145, LZJC-12 12kV Epoxy Resin Cast Current Transformer May 13, 2026 / July 20, 2026 by tianming LZJC6-10/145 / LZJC-12 indoor single-phase epoxy resin cast current transformer for 10kV, 11kV and 12kV switchgear. Designed for current measurement, energy metering and relay protection, with fully enclosed support construction, grooved external insulation, 5A/1A secondary output, standard or customized current ratios and IEC-based project specifications. Read more »
Documents SEL-751 11kV Cast-Resin Current Transformer for Substation Metering & Protection – IEC 61869-2 Compliant May 13, 2026 / May 2, 2026 by tianming For Substation Metering & Protection: AGE-1232 11kV Cast-Resin Voltage Transformer per IEC 61869-3 Introduction to the AGE-1232 Voltage Transformer The AGE-1232 is a single-phase, indoor/outdoor-rated cast-resin voltage transformer (VT) engineered for high-precision voltage measurement and reliable protective relaying in 11kV (IEC) / 10kV (domestic) medium-voltage networks. Designed in strict accordance with IEC 61869-3 and GB/T […] Read more »
Documents Medium-Voltage Cable Testing & Fault Location: VLF, Tan δ, PD & TDR Guide (IEC 60840, IEEE 400) May 13, 2026 by tianming Medium-Voltage Cable Testing & Fault Location: VLF, Tan δ, PD & TDR Guide (IEC 60840, IEEE 400) Meta Description: Comprehensive guide on medium-voltage (MV) cable testing and fault location. Covers VLF withstand, tan δ, partial discharge, TDR, and compliance with IEC 60840 and IEEE 400. Includes testing procedures, acceptance criteria, and troubleshooting for XLPE, PILC, […] Read more »
Documents LSZ-12 11kV Cast-Resin Voltage Transformer for Outdoor/Indoor Metering & Protection – IEC 61869-3 May 13, 2026 / April 22, 2026 by tianming Introduction The LSZ-12 Voltage Transformer is a precision instrument designed for accurate voltage measurement, protection, and metering applications in 10 kV medium-voltage power systems. As a core component of modern substation infrastructure, this transformer ensures reliable signal conversion from high primary voltages to standardized secondary outputs compatible with protective relays, energy meters, and monitoring equipment. […] Read more »
Documents SEL-351 11kV Cast-Resin Voltage Transformer for Substation Metering and Protection – IEC 61869-3 Certified May 12, 2026 / May 2, 2026 by tianming SEL-351 11kV Cast-Resin Voltage Transformer for Substation Metering and Protection – IEC 61869-3 Certified Introduction to the SEL-351 Voltage Transformer The SEL-351 is a precision-engineered, cast-resin insulated voltage transformer (VT) designed for accurate voltage measurement and reliable protective relay operation in medium-voltage power systems rated at 11kV (IEC standard), equivalent to 10kV in domestic Chinese […] Read more »
10KV Current Transformer 3kV-12kV Indoor CTs LZZBJ9-12B, 10B, 10kV-12kV Epoxy Resin Cast Current Transformer May 12, 2026 / July 20, 2026 by tianming LZZBJ9-10B, LZZBJ9-12B 10kV, 12kV indoor epoxy resin cast fully enclosed current transformer for 10kV, 11kV and 12kV medium-voltage switchgear. Designed for current measurement, electric energy metering and relay protection, with primary lead-out boards, bottom mounting inserts, 1A/5A secondary output, metering/protection accuracy combinations and project-based short-circuit withstand ratings. Read more »
