The **FJT-36-R** typically refers to a high-voltage, high-power **Ignition Transformer** or a specific **Spark Igniter** assembly used in industrial burners, boilers, and heating systems. These components are designed to convert standard line voltage into a high-voltage arc capable of igniting gas or oil fuels. ### Technical Specifications (Typical) The following table outlines the general technical characteristics found in the FJT-36-R series: | Feature | Description | | :--- | :--- | | **Input Voltage** | 220V - 240V AC (Standard) | | **Output Voltage** | 15kV - 18kV (Peak) | | **Output Current** | 20mA - 30mA | | **Duty Cycle** | Intermittent (e.g., 25% or 33% over 3 minutes) | | **Enclosure Rating** | IP40 or IP54 (depending on housing) | | **Connector Type** | Plug-in or terminal screw | --- ### Core Electronic Components The FJT-36-R operates on electromagnetic induction principles. Its internal structure consists of three main electronic stages: #### 1. Primary Winding The primary coil consists of fewer turns of thicker copper wire. When the input AC voltage (220V) flows through this coil, it creates a fluctuating magnetic field in the laminated iron core. #### 2. Laminated Iron Core The core is made of high-permeability silicon steel. Its purpose is to concentrate the magnetic flux and efficiently transfer energy from the primary winding to the secondary winding with minimal eddy current losses. #### 3. Secondary Winding (Step-Up) This is the "High Tension" (HT) side. It consists of thousands of turns of very fine copper wire. Due to the high turns ratio, the low input voltage is stepped up to the **15,000V+** range required to ionize the air gap at the electrodes and create a spark. --- ### Key Features & Safety * **Encapsulation:** The internal coils are often vacuum-potted in epoxy resin to prevent internal arcing and protect against moisture and vibration. * **Electromagnetic Interference (EMI):** Most models include internal shielding or filtering to prevent the high-frequency spark noise from interfering with nearby burner controllers or sensors. * **Grounding:** A dedicated grounding tab is essential for safety to provide a return path for the high-voltage circuit. --- ### Installation Precautions 1. **High Voltage Danger:** Never touch the output terminals or the ignition cables while the unit is powered. 2. **Cable Length:** Keep high-voltage leads as short as possible to prevent energy loss and radio interference. 3. **Heat Dissipation:** Ensure the unit is mounted in a well-ventilated area, as ignition transformers generate significant heat during the spark cycle.