Product Classification
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This series of current transformers features a fully enclosed structure with epoxy resin cast insulation. They are suitable for use in power systems with a rated frequency of 50 Hz or 60 Hz for electricity metering. This type of current transformer eliminates oil contamination and fire hazards, reduces maintenance requirements, and meets the requirements for oil-free operation. This type of current transformer uses epoxy resin as the primary insulation material, offering resistance to arcing, UV radiation, and aging. The core is made of high-quality, highly permeable material that has undergone annealing treatment. Both the primary and secondary windings, as well as the core, are encapsulated in epoxy resin, ensuring excellent insulation performance.
This series of current transformers features a fully enclosed structure with epoxy resin cast insulation. They are suitable for use in power systems with a rated frequency of 50 Hz or 60 Hz for electricity metering. This type of current transformer eliminates oil contamination and fire hazards, reduces maintenance requirements, and meets the requirements for oil-free operation. This type of current transformer uses epoxy resin as the primary insulation material, offering resistance to arcing, UV radiation, and aging. The core is made of high-quality, high-permeability material that has undergone annealing treatment. Both the primary and secondary windings, as well as the core, are encapsulated in epoxy resin, ensuring excellent insulation performance.
The LZZB-type current transformer is a fully enclosed, epoxy-resin-cast product primarily designed for use in power systems with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 35 kV or less. Its core function is to provide high-precision current signals for electricity metering, current measurement, and relay protection. This model features high dynamic and thermal stability, high accuracy, and high capacity.
The LZZBJ9-10A current transformer is primarily designed for indoor power systems with a rated frequency of 50 Hz and a rated voltage of 10 kV or less (maximum operating voltage of 12 kV). Its core function is to accurately measure current and electrical energy in power lines and to provide reliable signals to relay protection devices. This model is widely used in indoor switchgear (such as center-mounted switchgear and cabinet-type switchgear) as well as in high- and low-voltage switchgear assemblies.
The LZZB1-35W current transformer is a fully enclosed, epoxy-resin-cast product primarily designed for use in power systems with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 35 kV or less. Its core function is to provide high-precision current signals for electricity metering, current measurement, and relay protection. This model is specifically designed to be used in conjunction with equipment such as the ZW-type 35 kV vacuum circuit breaker, and features high dynamic and thermal stability, high precision, and high capacity.
The LZJC-10Q current transformer is primarily designed for use in indoor power systems with a rated frequency of 50 Hz (or 60 Hz) and a rated voltage of 10 kV or less. Its core function is to accurately measure the current and electrical energy in the circuit and to provide signals to relay protection devices.
The LXK Series zero-sequence current transformers are primarily suitable for small-ground-current systems with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 35 kV or less. Their core function is to work in conjunction with DD-11/60 or DD-1/60 relays and signaling devices to detect zero-sequence current (residual current) in three-phase power systems. When asymmetric faults, such as single-phase-to-ground faults, occur in the system, the current transformers can accurately detect them and trigger protective devices, thereby providing ground fault protection and monitoring for cables.
This series of current transformers features a fully enclosed structure with epoxy resin cast insulation. They are suitable for use in power systems with a rated frequency of 50 Hz or 60 Hz for electricity metering. These transformers can replace LB-type oil-immersed transformers, eliminating oil contamination and fire hazards, reducing maintenance requirements, and meeting the demand for oil-free systems. This type of current transformer uses epoxy resin as the primary insulation material, offering resistance to arcing, UV radiation, and aging. The core is made of high-quality, highly permeable material that has undergone annealing treatment. Both the primary and secondary windings, as well as the core, are encapsulated in epoxy resin, ensuring excellent insulation performance. The primary leads are located at the top of the cast body and are marked P1 and P2, while the secondary leads are marked 1S1 and 1S2. The transformer is of the polarity-reversing type.
This type of current transformer is an epoxy-encapsulated, fully enclosed busbar-type product. It is primarily suitable for indoor power lines and equipment with a rated frequency of 50 Hz or 60 Hz and a rated voltage of 10 kV or less, and is used for current and energy measurement as well as relay protection. This product features a fully enclosed busbar-type structure. The core is formed by winding high-quality cold-rolled silicon steel strips into a circular ring, with the secondary windings evenly distributed around the circumference. Both the secondary windings and the core are encapsulated in epoxy resin. The current transformer is compact and lightweight, offering excellent insulation performance and resistance to pollution and moisture. The mounting plate is equipped with mounting holes and grounding bolts to facilitate polarity-insensitive wiring and secure installation.
Low-voltage current transformers for metering are suitable for use in 0.4 kV distribution lines within the State Grid Corporation of China system. This type of current transformer complies with the Q/GDW 10572.1-2020 standard. Low-voltage current transformers for metering are suitable for use in 0.4 kV distribution lines within the State Grid Corporation of China system. This type of current transformer complies with the Q/GDW 10572.1-2020 standard. This product is cast from an epoxy resin mixture. Current transformers rated at 500/5 A and below feature a toroidal core; while transformers rated at 600/5A and above feature rectangular cores, with the secondary windings evenly distributed around the core. Terminal markings: The primary terminals are marked “P1” and “P2” on the upper exterior, and the secondary terminals are marked “S1” and “S2” at the lead-out ends. When primary current flows into P1, the secondary current flows out of S1 and returns to S2 via the external circuit.
Low-voltage current transformers for metering are suitable for use in 0.4 kV distribution lines within the State Grid Corporation of China system. This type of current transformer complies with the Q/GDW 10572.1-2020 standard. This product is cast from an epoxy resin mixture. Current transformers rated at 500/5 A and below feature a toroidal core; while transformers rated at 600/5A and above feature rectangular cores, with the secondary windings evenly distributed around the core. Terminal markings: The primary terminals are marked “P1” and “P2” on the upper exterior, and the secondary terminals are marked “S1” and “S2” at the lead-out ends. When primary current flows into P1, the secondary current flows out of S1 and returns to S2 via the external circuit.
LZZB1-35W outdoor current transformer is epoxy resin cast insulation and fully enclosed product. It is suitable for power system with rated frequency of 50Hz or 60Hz and rated voltage of 35kV and below, for energy measurement, current measurement and relay protection.







