15Kv-24Kv Cts LZZB1-24W Outdoor Epoxy Resin Cast Current Transformer June 8, 2026 / July 20, 2026 by tianming LZZB1-24W outdoor epoxy resin cast current transformer for 24kV distribution systems. Designed for outdoor current measurement, energy metering and relay protection, with oil-free dry-type insulation, 24/65/125kV insulation level, 5A or 1A secondary output, 0.2S/0.2/0.5 metering classes, 5P protection options, front terminal box wiring and approx. 39kg compact structure. Read more »
15Kv-24Kv Cts LZZBW-15, LZZBW-24 Outdoor Epoxy Resin Cast Current Transformer June 8, 2026 / July 20, 2026 by tianming LZZBW-15, LZZBW-24, LZZBW-17.5kv outdoor epoxy resin cast current transformers for 15kV, 17.5kV and 24kV distribution systems. Designed for outdoor current measurement, energy metering and relay protection, with oil-free dry-type insulation, fully enclosed pillar structure, 5A or 1A secondary output, metering and protection accuracy combinations, safe terminal box wiring and four-hole bottom mounting. Read more »
15Kv-24Kv Cts COL-24, COL-36 Outdoor Oil-Immersed Current Transformer June 8, 2026 / July 20, 2026 by tianming COL-24, COL-36 outdoor oil-immersed current transformers for 24kV and 36kV distribution systems. Designed for outdoor current measurement, revenue metering and relay protection, with 5A or 1A secondary output, 0.2S/0.2/0.5S/0.5 metering accuracy options, 24/65/125kV insulation reference for COL-24, and NEMA pad or compression primary connector options. Read more »
15Kv-24Kv Cts LZZB11-24/180-220 Indoor Epoxy Cast-Resin Voltage Transformer June 7, 2026 / July 20, 2026 by tianming LZZB11-24/180-220 indoor epoxy cast-resin voltage transformer for 20kV, 22kV and 24kV switchgear. Designed for voltage measurement, metering reference and protection voltage circuits, with 24/65/125kV insulation level, standard and 2×600A installation layout references, P1/P2 and tapped C1/C2 wiring options, and IEC 61869-3 / GB 20840.3 documentation. Read more »
15Kv-24Kv Cts LZZBJ9-24/180b/2S Indoor Epoxy Resin Current Transformer June 7, 2026 / July 20, 2026 by tianming LZZBJ9-24/180b/2S indoor epoxy resin CT with compact 180b body, 20kV / 22kV / 24kV suitable for cabinets ≥ 800 mm width. Features dual secondary windings for metering and protection, 20kV/22kV/24kV rated voltage, low partial discharge, IEC 61869 and GB/T 20840 compliance, PR/PX/TPX protection options, and epoxy cast-resin fully enclosed insulation. Read more »
15Kv-24Kv Cts LZZBJ9-24/180b/4S Indoor Epoxy Cast-Resin Current Transformer June 7, 2026 / July 20, 2026 by tianming LZZBJ9-24/180b/4S indoor epoxy cast-resin current transformer for 20kV, 22kV and 24kV switchgear. Designed with busbar-type primary terminals, 24/65/125kV insulation level, 5A or 1A secondary output, 4S multi-secondary winding groups, 0.2S/0.5 metering classes and 10P10/10P15 protection options. Charged display device can be added when secondary winding quantity allows. Read more »
15Kv-24Kv Cts LZZBJ9-24/185h/2S Indoor Epoxy Cast-Resin Current Transformer June 7, 2026 / July 20, 2026 by tianming LZZBJ9-24/185h/2S indoor epoxy cast-resin current transformer for 20kV, 22kV and 24kV switchgear. Designed with compact 185h structure, busbar-type installation, 24/65/125kV insulation level, 5A or 1A secondary output, 2S dual-secondary winding groups, 0.2S/0.5 metering classes and 5P10/5P20 protection options. Read more »
15Kv-24Kv Cts LZZBJ9-24/195W/4S Epoxy Resin Current Transformer 195 mm June 7, 2026 / July 20, 2026 by tianming LZZBJ9-35 epoxy resin current transformer with 195 mm equipment width for 800 mm and wider medium-voltage switchgear cabinets. Designed for current measurement, energy metering and relay protection, with full copper winding, high-quality epoxy insulation, low partial discharge, 0.5/0.2/0.2S accuracy options, IEC 61869 and ANSI/IEEE C57.13 project support. Read more »
15Kv-24Kv Cts LZZBJ9-24/220b/2S Indoor Epoxy Cast-Resin Current Transformer June 7, 2026 / July 20, 2026 by tianming LZZBJ9-24/220b/2S indoor epoxy cast-resin current transformer for 20kV, 22kV and 24kV switchgear. Designed for energy metering, current measurement and relay protection, with 24/65/125kV insulation level, 5A or 1A secondary output, 2S dual-secondary winding groups, 0.2S/0.5 metering accuracy and 5P10/10P10 protection options. Read more »
15Kv-24Kv Cts LZZB9-24/220b/4S Indoor Epoxy Cast-Resin Current Transformer June 6, 2026 / July 20, 2026 by tianming LZZB9-24/220b/4S indoor epoxy cast-resin current transformer for 20kV, 22kV and 24kV switchgear. Designed for energy metering, current measurement and relay protection, with 24/65/125kV insulation level, 5A or 1A secondary output, 4S multi-secondary winding groups, 0.2S/0.5S metering accuracy and 5P10/5P20 protection options. Read more »
Documents JDZW-35 33kV Cast-Resin Voltage Transformer for Metering & Protection per IEC 61869-3: Application Scenarios June 6, 2026 / April 24, 2026 by tianming Introduction The JDZW-35 33kV voltage transformer is a cast-resin insulated instrument transformer designed for accurate voltage measurement and reliable protective relay operation in medium-voltage power systems. While designated with “35” in its model number—a reference to the nominal system voltage per Chinese domestic standards (GB/T 20840)—the device is engineered to operate at a primary system […] Read more »
Documents CT/PT Selection for Mining & Heavy Industry: Dust, Explosion & IEC 60079 Guide (IEC 61869-2/3, IEEE C57.13) June 6, 2026 by tianming CT/PT Selection for Mining & Heavy Industry: Dust, Explosion & IEC 60079 Guide (IEC 61869-2/3, IEEE C57.13) Meta Description: Comprehensive guide on current transformer (CT) and potential transformer (PT) selection for mining and heavy industry applications. Covers dust resistance, explosion-proof certification, IEC 60079 compliance, and practical engineering examples for coal mines, metal mines, and chemical […] Read more »
