Combined Transformers High-Voltage Metering Box JLSW3-10 10kV Outdoor Oil-Immersed Combined Instrument Transformer January 20, 2026 / April 14, 2026 by tianming Product Overview Functional Definition The JLSW3-10 outdoor oil-immersed three-phase combined instrument transformer (metering unit) is an integrated outdoor metering solution designed for accurate voltage measurement, current measurement, energy metering, and relay protection applications in medium-voltage AC power systems. This combined transformer integrates three single-phase fully-insulated voltage transformers and three current transformers in a single oil-filled […] Read more » recommended
10KV Voltage Transformer JSJW-3/6/10 Three-Phase Oil-Immersed Voltage Transformers (3–10kV) January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JSJW-3, JSJW-6, and JSJW-10 series are three-phase, oil-immersed inductive voltage transformers designed for accurate voltage measurement, energy metering, insulation monitoring (residual voltage), and relay protection in indoor medium-voltage AC power systems (50 Hz / 60 Hz). The transformer provides galvanically isolated secondary voltages proportional to the primary voltage, supplying standardized […] Read more »
10KV Voltage Transformer JDZC-3/6/10KV semi-enclosed epoxy resin cast voltage transformer January 20, 2026 / March 3, 2026 by tianming Product Overview The JDZC-3/6/10 series single-phase epoxy resin voltage transformers are precision electromagnetic instruments designed for accurate voltage measurement, energy metering, control circuits, and relay protection in medium-voltage AC power systems. Based on electromagnetic induction principles, these voltage transformers provide galvanically isolated secondary voltage signals proportional to the primary voltage, suitable for 3–10 kV indoor […] Read more »
Combined Transformers High-Voltage Metering Box JLS-35KV Outdoor Oil-Immersed Three-Phase Combined Instrument Transformer January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JLS-35 is an outdoor, oil-immersed combined instrument transformer (metering box) integrating two single-phase fully-insulated VTs and two CTs in a sealed oil-filled enclosure. The VTs are connected in V/V, and the CTs are installed in series on phases A and C to provide isolated secondary voltage and current outputs for […] Read more » recommended
Combined Transformers High-Voltage Metering Box JLSW3-35kV Outdoor Oil-Immersed Combined Instrument Transformer January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JLSW3-35kV outdoor oil-immersed combined instrument transformer (also designated as metering box) is a three-phase high-voltage energy metering assembly designed for outdoor installation in AC power systems up to 35 kV. This integrated package combines three single-phase fully-insulated voltage transformers (VT/PT) configured in Y/Y connection with three current transformers (CT) installed […] Read more » recommended
Combined Transformers JLS-20KV outdoor oil-immersed combined instrument transformer January 20, 2026 / March 3, 2026 by tianming Product Overview The JLS-20KV outdoor oil-immersed combined instrument transformer, is a precision electromagnetic metering and measurement solution designed for high-voltage AC power systems. This integrated unit comprises two single-phase fully-insulated voltage transformers (VT) configured in three-phase V/V connection and two current transformers (CT) series-connected in A-phase and C-phase, providing simultaneous current and voltage transformation for […] Read more » recommended
Combined Transformers JLSZW-6, JLSZW-10 Three-Phase Dry-Type Combined Transformer (10KV Outdoor ) January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JLSZW-6 and JLSZW-10 series Three-Phase Dry-Type Combined Transformer are integrated electromagnetic metering devices designed for accurate voltage and current measurement in outdoor medium-voltage AC distribution systems. These units combine voltage transformation and current measurement functions in a single compact assembly, providing galvanically isolated secondary signals for energy metering, monitoring, and […] Read more » recommended
Combined Transformers JSZV12-20R Three-Phase Epoxy Resin Combination Voltage Transformer with Built-in Fuse January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JSZV12-20R three-phase epoxy resin combination voltage transformer with built-in fuse protection is specifically designed for XGW-12 outdoor AC fixed metal-enclosed switchgear applications. This voltage transformer provides both 100V measurement voltage output and 220V operating power supply, delivering stable power to circuit breakers while ensuring reliable operation and system efficiency. Key […] Read more »
Combined Transformers JSZV12-10R Combined Voltage Transformer, 10kV Dual Output, Fused January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JSZV12-10R series combined voltage transformers are precision electromagnetic instruments designed for accurate voltage measurement, energy metering, and auxiliary power supply in medium-voltage AC power systems. These combined transformers integrate voltage transformation with built-in high-voltage fuse protection on each phase, utilizing electromagnetic induction principles to provide galvanically isolated secondary voltage […] Read more »
Combined Transformers JSZW3-10 indoor three-phase epoxy resin combined transformer (CTs PTs) January 20, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JSZW3-10 series indoor three-phase combined voltage transformers are precision electromagnetic instruments designed for accurate voltage measurement, energy metering, and relay protection applications in medium-voltage AC power systems. These transformers utilize electromagnetic induction principles to provide galvanically isolated secondary voltage signals proportional to primary voltage, serving measurement, metering, and protection functions […] Read more » recommended
Combined Transformers JLSZW Outdoor Epoxy Resin Combined Instrument Transformer January 19, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JLSZW series outdoor epoxy resin cast combined instrument transformers, also referred to as energy metering boxes, are precision electromagnetic instruments designed for integrated voltage measurement, current measurement, energy metering, and relay protection in medium to high-voltage AC power systems. These combined units utilize electromagnetic induction principles to provide galvanically isolated […] Read more » recommended
Combined Transformers JSZW-10R 10kV Outdoor Epoxy Resin Combined Transformer (CTs, PTs) January 19, 2026 / March 3, 2026 by tianming Product Overview Functional Definition The JSZW-10R 10kV Outdoor Epoxy Resin Combined Transformers, are high-performance electromagnetic instruments, designed for accurate voltage and current measurement, energy metering, voltage monitoring, and relay protection in 10 kV outdoor power distribution systems. This integrated transformer combines voltage transformation and current sensing functions in a compact, fully-enclosed epoxy resin structure, providing […] Read more » recommended
