JDZ16-12R voltage transformer
Key attributes
| Brand | Wone Store |
| Model NO. | JDZ16-12R voltage transformer |
| Rated frequency | 50/60Hz |
| Primary voltage | 11kV |
| Secondary voltage | 110V |
| Series | JDZ |
Product descriptions from the supplier
Product Overview
JDZ16-12R voltage transformer, epoxy resin casting and full enclosed construction, is used indoor for measuring current, electric energy and protective relaying in single-phase or three-phase AC circuit with the frequency 50Hz or 60Hz and highest voltage for equipment 12kV.
The product has the feature of high reliability, low magnetism of core, large creep distance of external insulation and maintenance free etc.
Key Features
Epoxy Resin Fully Enclosed Cast Insulation：JDZ16-12R employs advanced vacuum epoxy resin casting technology to form a fully sealed insulation system with an IP65 protection rating. This structure not only features excellent electrical insulation capable of withstanding high-voltage impulses—ensuring stable operation under normal and transient overvoltage conditions—but also effectively resists dust, moisture, and salt fog. It maintains reliable performance in humid coastal areas with high salinity or dusty industrial environments, eliminating the need for frequent maintenance. This maintenance-free design significantly reduces O&M costs, minimizes power outage time for servicing, and enhances overall power system operational efficiency.
Wide Temperature Range Stable Operation：With an operating temperature range of -40℃ to +70℃, it ensures stable performance in extreme climates. High-quality high/low-temperature resistant insulation materials prevent insulation aging caused by drastic temperature fluctuations, maintaining consistent electrical properties. Field tests and long-term applications verify a service life exceeding 30 years, reducing equipment replacement frequency and long-term costs while providing reliable support for long-term power system stability.
Anti-Fouling Flashover & High Insulation Design：The external insulation features a creepage distance ≥31mm/kV, equipped with anti-fouling flashover skirts and hydrophobic coatings, making it ideal for Class Ⅲ pollution areas. These designs significantly reduce the risk of flashover caused by contaminant accumulation and moisture. Insulation performance tests show partial discharge ≤5pC, and it has passed 12kV/42kV/75kV power frequency/impulse withstand voltage tests, comprehensively ensuring insulation reliability for safe operation under complex conditions.
Main technical parameter
Highest voltage for equipment: 12kV
Rated primary voltage: 11kV
Rated secondary voltage: 100/220V or 110/220V or 100V or 110V.
Technical standard accords with IEC 60044-2:2003 Part2 Instrument transformers-Part2: inductive voltage transformers
Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.
Outline drawing
Related Products
Related Knowledges
-
Faults and Handling of Single-phase Grounding in 10kV Distribution LinesCharacteristics and Detection Devices for Single-Phase Ground Faults1. Characteristics of Single-Phase Ground FaultsCentral Alarm Signals:The warning bell rings, and the indicator lamp labeled “Ground Fault on [X] kV Bus Section [Y]” illuminates. In systems with a Petersen coil (arc suppression coil) grounding the neutral point, the “Petersen Coil Operated” indicator also lights up.Insulation Monitoring Voltmeter Indications:The voltage of the faulted phase decreases (in01/30/2026 -
Neutral point grounding operation mode for 110kV～220kV power grid transformersThe arrangement of neutral point grounding operation modes for 110kV～220kV power grid transformers shall meet the insulation withstand requirements of transformer neutral points, and shall also strive to keep the zero-sequence impedance of substations basically unchanged, while ensuring that the zero-sequence comprehensive impedance at any short-circuit point in the system does not exceed three times the positive-sequence comprehensive impedance.For 220kV and 110kV transformers in new constructi01/29/2026 -
Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?Why Do Substations Use Stones, Gravel, Pebbles, and Crushed Rock?In substations, equipment such as power and distribution transformers, transmission lines, voltage transformers, current transformers, and disconnect switches all require grounding. Beyond grounding, we will now explore in depth why gravel and crushed stone are commonly used in substations. Though they appear ordinary, these stones play a critical safety and functional role.In substation grounding design—especially when multiple gr01/29/2026 -
Why Must a Transformer Core Be Grounded at Only One Point? Isn't Multi-Point Grounding More Reliable?Why Does the Transformer Core Need to Be Grounded?During operation, the transformer core, along with the metal structures, parts, and components that fix the core and windings, are all situated in a strong electric field. Under the influence of this electric field, they acquire a relatively high potential with respect to ground. If the core is not grounded, a potential difference will exist between the core and the grounded clamping structures and tank, which may lead to intermittent discharge.I01/29/2026 -
Understanding Transformer Neutral GroundingI. What is a Neutral Point?In transformers and generators, the neutral point is a specific point in the winding where the absolute voltage between this point and each external terminal is equal. In the diagram below, pointOrepresents the neutral point.II. Why Does the Neutral Point Need Grounding?The electrical connection method between the neutral point and earth in a three-phase AC power system is called theneutral grounding method. This grounding method directly affects:The safety, reliabilit01/29/2026 -
What’s the Difference Between Rectifier Transformers and Power Transformers?What is a Rectifier Transformer?"Power conversion" is a general term encompassing rectification, inversion, and frequency conversion, with rectification being the most widely used among them. Rectifier equipment converts input AC power into DC output through rectification and filtering. A rectifier transformer serves as the power supply transformer for such rectifier equipment. In industrial applications, most DC power supplies are obtained by combining a rectifier transformer with rectifier equ01/29/2026
Related Solutions
-
Dedicated Vacuum Contactor Solution for Port Shore Power SystemsI. Background and ChallengesShore power systems have become core technical equipment for ports to reduce carbon emissions and noise pollution. However, these systems face two major challenges in the harsh operational environment of ports:Severe Environmental Corrosion: High humidity and salt spray in port areas cause serious corrosion to metal components and enclosures of electrical equipment, significantly impacting electrical lifespan and operational reliability.High Switching Requirements:09/13/2025 -
ABB Vacuum Contactor KC2 Power Supply System Technical Transformation PlanIssue OverviewThe 10kV air compressor starting system of a company utilizes the ABB vacuum contactor KC2 as the control component for the operating circuit. The dedicated wide-voltage power supply module paired with this contactor presents the following issues:Frequent failures: The power supply module fails to properly transition the voltage from 300V to 12V, resulting in fuse blowouts.Poor heat dissipation: Enclosed installation of the module leads to insufficient heat dissipation, acceler09/13/2025 -
Solution for Medium-Voltage Motor Control and Protection Using Vacuum Contactor-Fuse (VCF) in a Coal Conveying System1.Project BackgroundA coal conveying system comprises 15 belt conveyors driven by medium-voltage motors. The system operates under complex conditions, with motors often subjected to heavy loads and frequent starts. To address these challenges and achieve effective control and reliable protection during motor startup, the project comprehensively adopts Vacuum Contactor-Fuse (VCF) combination devices for the 6kV medium-voltage motor power distribution. This solution details the technical features,09/13/2025
