Xiamen No.1 Instrument Transformer Co., Ltd. was established in 2014. It is a company specializing in the research and development, production and sales of high voltage transformer and Low voltage transformer.With more than 10 years of industry experience, we have developed into an efficient production base with an area of 10,000 square meters and a professional team of 100 people.
We provide high-reliability instrument transformer products for China State Grid and several key infrastructure projects , and win the trust of long-term customers with excellent performance.
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With our innovative technologies, clear focus on the needs of our customers, we energize society. Let’s make tomorrow different today!
Learn moreJDZ(X)12A-10R is a high-performance voltage transformer for 10kV distribution systems with stringent requirements for insulation monitoring and anti-interference, and its capacitance tube design significantly improves equipment reliability. Rated primary voltage 10kV Rated secondary voltage 100V (or 100/√3V) Accuracy class 0.2/0.5 (measurement), 3P/6P (protection) Rated load 50VA (customizable on request) Insulation level 12/42/75kV (I.F./Lightning Surge/Truncation) Ambient Temperature -25℃ ~ 40℃
View Details- Three-phase integrated type (S): - Saves installation space, suitable for compact switchgear (such as KYN28A-12). - With residual voltage winding (V): - Can output zero-sequence voltage (3U₀), used for insulation monitoring and grounding protection in systems with ungrounded neutral points. - Rated voltage: 10kV (primary side) / 100V or 100/√3V (secondary side). - High precision: - Measurement accuracy: Class 0.2, Class 0.5 (energy metering). - Protection accuracy: Class 3P, Class 6P (relay protection). - Low loss: small no-load current, low temperature rise, and good long-term operational stability.
View DetailsThe JSZXF-10R achieves a triple upgrade through material innovation (composite insulation), structural innovation (anti-pollution flashover umbrella skirt), and functional innovation (harmonic suppression digitalization), becoming the preferred solution for 10kV systems to handle complex operating conditions, with a full lifecycle cost reduction of over 30%.
View DetailsBusbar construction Directly socketed to the busbar for easy installation and space saving. Fully enclosed casting Epoxy resin vacuum casting, moisture-proof and explosion-proof, suitable for humid and dirty environment. Modular design Removable terminals for easy maintenance Rated current ratio: common such as 100/5A, 200/5A (can be customized) - Accuracy rating: - Measurement: Class 0.2, Class 0.5 - Protection: 5P10, 10P10 - Thermal stabilization current: up to 50kA/1s - Dynamic stabilizing current: 125kA (peak) IEC 60044-1 current transformer; ANSI/IEEE C57.13 compliant CT Technical characteristics:Low power burden current transformer;Bar-type/Wound-type current transformer
View DetailsS11-M-30-2500/10(20)kV type fully sealed oil-immersed transformer is suitable for AC 50Hz, rated working voltage 10kV, 20kV and below power system, as a distribution transformer for petroleum, metallurgy, chemical, textile, light industry and other enterprises and dusty places.
View Details800~31500/35 type oil-immersed transformer is suitable for AC 50Hz, rated working voltage 35kV power system, as a small and medium-sized substation substation substation equipment.
View DetailsThis product has a wide range of applications, especially suitable for use in places with high fire protection requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings and all indoor configuration systems.
View DetailsThis product has a wide range of applications, especially suitable for use in places with high fire protection requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings and all indoor configuration systems.
View DetailsCNH-12/630-20 environmentally friendly gas closed ring network switchgear is a new type of green and environmentally friendly metal enclosed switchgear. It is insulated with environmentally friendly gases such as dry air or nitrogen, with no/less greenhouse gas emissions. The material recyclability rate after the product life cycle reaches 90% % or more, except for the casing, other insulation components basically do not use difficult-to-degrade epoxy resin materials, truly achieving the purpose of being green and environmentally friendly. Both circuit breakers and load switches adopt vacuum arc extinguishing, which has strong environmental adaptability, small size, space saving, no need for SF, gas detection and protection, safe and reliable operation, maintenance-free, and intelligence. It is the future development of ring main unit. direction.
View DetailsIntroducing our revolutionary product - fully insulated and fully enclosed ring network switchgear. This high-tech miracle has been listed as a characteristic product of Zhejiang Province by the National High Voltage Electrical Testing Center type test and the Zhejiang Province High-tech Project. Its excellent performance makes it widely used in 12kV power distribution systems. It is an essential switching product for urban and rural users' power transformation and distribution systems.
View DetailsAdopt three-station Sf. Load switch assembly, clever separation of left and right incoming and outgoing lines, minimal structural design, strongest cable configuration function, up to 8 incoming and outgoing lines. This branch box not only retains the advantages of the fiber distribution box, but also has some of the concerns of the ring main unit. It is an ideal equipment for urban network transformation. Small size, maintenance-free, good technical economy, high reliability, simple installation and convenient use.
View DetailsThe material performance of the primary and secondary fusion standardized ring cage box is not inferior to S304 stainless steel or GRC material (glass fiber reinforced cement) and other materials. The shell should have sufficient mechanical strength and should not be deformed or damaged during lifting, transportation and installation. The protection level of the outer box should not be lower than IP43. If the material of the ring cage is metal, the nominal thickness is ≥ 2mm, and the allowable dimensional deviation meets the Class B accuracy requirements of "GB/T 708 Dimensions, Shapes, Weights and Allowable Deviations of Cold-rolled Steel Plate and Steel Strips".
View DetailsThe company has advanced production linesrefer to local standards and international standards of electrical equipment from raw material to finished step of end users.
There for, our quality always improved according to the customer desires in order to make sure that our customers (are) well satisfied with the service we provide.
Precision Manufacturing!The current transformer is an instrument that converts large primary current into small secondary current based on the principle of electromagnetic induction for measurement. The current transformer consists of a closed iron core and windings.
Explore MoreVoltage transformers are indispensable electrical devices in power transmission and supply systems such as power plants and substations. Precision voltage transformers are instruments used in electrical testing laboratories to extend measurement ranges for measuring voltage, power, and electric energy.
Explore MoreA power transformer is a stationary electrical device used to convert an alternating current voltage (current) of a certain value into one or several different values of voltage (current) with the same frequency.
Explore MoreInflatable cabinet, also known as C-GIS, is short for gas-insulated switchgear. It is defined in terms of the insulation form of the main switch, in contrast to air-insulated switchgear and solid-insulated switchgear.
Explore More99.9% Customer Satisfaction based on reviews and objective resource
Substation automation systems (SAS) rely on real-time data to monitor, control, and protect power grids, enabling efficient operation and rapid fault response. At the heart of this data acquisition process are current transformers (CTs)—devices that step down high primary currents to manageable secondary levels (typically 5A or 1A) for measurement, metering, and protection.
Read MoreIn summary, burden ratings are not just technical specifications but essential safeguards that ensure potential transformers deliver accurate, reliable performance across diverse applications—from urban substations to remote rural grids.
Read MoreRural electrification demands voltage transformers (VTs) that can withstand extreme environmental conditions while delivering reliable performance with minimal maintenance. Traditional electromagnetic or capacitive VTs, though widely used, often struggle in rural settings—susceptible to electromagnetic interference (EMI), corrosion from dust or salt, and damage from wildlife.
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