Documents How to Select a JLS-20KV Combined Instrument Transformer for 20 kV and 22 kV Outdoor Metering Systems April 17, 2026 by tianming A technical selection guide for the JLS-20KV combined instrument transformer in 20 kV and 22 kV outdoor metering systems, covering V/V voltage measurement, CT coordination, and installation conditions. Read more »
Documents How to Evaluate a JLSW3-35kV Combined Instrument Transformer for 33 kV and 35 kV Outdoor Metering Projects April 16, 2026 by tianming An engineering guide to evaluating the JLSW3-35kV combined instrument transformer for outdoor metering projects, with attention to 33 kV and 35 kV class practice, CT and VT coordination, and site conditions. Read more »
Documents How to Specify a JDZW-35R Outdoor Voltage Transformer for 35 kV Metering and Protection April 16, 2026 by tianming A practical engineering guide to specifying the JDZW-35R outdoor voltage transformer for 35 kV metering, protection, and monitoring duties, with attention to secondary configuration, insulation, and service conditions. Read more »
Documents How to Select an LFS-10 Indoor Epoxy Resin Current Transformer for Metering and Protection April 15, 2026 / April 15, 2026 by tianming A practical engineering guide to selecting an LFS-10 indoor epoxy resin current transformer for switchgear metering and protection, including ratio, core, burden, installation, and project-document checks. Read more »
Documents JLS-6 Outdoor Combined Instrument Transformer Application Guide for Metering Projects April 15, 2026 / April 15, 2026 by tianming A technical application guide to using the JLS-6 outdoor oil-immersed combined instrument transformer in distribution metering projects, with practical notes on configuration, installation, and field use. Read more »
Documents LAJ-10Q, 11kV Current Transformer: Complete Engineering Specifications & Application Guide April 15, 2026 / April 15, 2026 by tianming Technical document for LAJ-10Q, current transformer - Comprehensive technical specifications and engineering details Read more »
Documents High-Voltage Metering Box How to Select Unknown 36kV Voltage Transformer: Engineering Methodology April 11, 2026 / April 17, 2026 by tianming Engineering Selection Guide: Unknown This comprehensive selection guide provides systematic methodology for specifying the Unknown voltage transformer in 35kV power systems. The selection process requires careful analysis of system parameters, load characteristics, accuracy requirements, and environmental conditions. Step 1: Determine System Parameters Before selecting the transformer, gather complete system data: 1.1 System Voltage Nominal System […] Read more »
Documents Testing and Maintenance Guide for LJ-ZW32-10(12) 11kV Zero Sequence CT – Routine Tests and Service Procedures April 2, 2026 / April 15, 2026 by tianming Technical document for LJ-ZW32-10(12) zero sequence ct - Testing procedures, maintenance schedules, and troubleshooting Read more »
Documents LB-10W Installation Requirements and Maintenance Guidelines: Comprehensive Technical Specifications for 10kV Power Systems February 22, 2026 / March 3, 2026 by tianming Installation Requirements LB-10W Outdoor Oil-Immersed Current Transformer for 10kV power systems. Installation Environment Location: Outdoor installation Altitude: ≤ 1000 m above sea level Ambient Temperature: -25°C to +40°C Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90% Mechanical Installation Mounting: Use designated fixing holes Clearance: Maintain electrical clearance and creepage distances per IEC 61869 […] Read more »
High-Voltage Metering Box JLSZK-12 IV High Voltage Prepaid Metering Box (6-10kV outdoor) January 28, 2026 / March 3, 2026 by tianming Product Overview The JLSZK-12 IV high-voltage prepaid metering box is an outdoor integrated measurement and control unit that combines a ZW8-12 vacuum circuit breaker (VCB) with built-in voltage transformer (VT/PT) and current transformer (CT) assemblies within a single weather-resistant enclosure. The unit is intended for three-phase 50 Hz medium-voltage distribution systems with rated system voltage […] Read more »
High-Voltage Metering Box ZWJLSZ-12 Prepaid Stainless Steel Cylindrical Metering Box January 27, 2026 / March 3, 2026 by tianming Produktübersicht Die ZWJLSZ-12 Prepaid-Hochspannungs-Met […] Read more »
High-Voltage Metering Box ZWJ-12 High Voltage Prepaid Metering Box January 27, 2026 / March 3, 2026 by tianming Produktübersicht ZWJ-12 Serie Hochspannungs-Prepaid-Zähler […] Read more »
