Brahma Ignition transformer T11/N 15099001

The Brahma T11/N ignition transformer (SKU 15099001) is a shell-shaped component designed for burners operating on liquid or gaseous fuels. It operates at a supply voltage of 220 V and 50 Hz, with a secondary voltage of 9 kV and a secondary current of 20 mA. The transformer has a power consumption of 240 W, an input effective current of 1.1 A, and a duty cycle of 33% in 3 minutes. It features grounded secondary windings, a shield for suppressing radio interference, and two caps. The body is made of polyester resin, and the insulator material is 30% PBT glass fiber. The recommended spark distance is 3–5 mm, and the standard power cable length is 550 mm. The transformer weighs 2 kg and has dimensions of 110 mm x 96 mm x 78 mm.

When selecting an ignition transformer of this type, ensure the supply voltage, frequency, and secondary voltage/current ratings match the burner's requirements. The mounting system must be compatible with the burner's design; these transformers may have different mounting forms, so verify the physical dimensions and mounting hole patterns. The connection insulator type (screw or cylindrical) should be checked against the existing wiring. Measure the available space and compare with the transformer's dimensions to ensure a proper fit.

Common failure modes for ignition transformers include internal short circuits, open windings, or insulation breakdown, which can result in weak or no spark at the electrodes. Symptoms may include the burner failing to ignite, intermittent ignition, or a buzzing sound from the transformer. Check for visible damage, carbon tracking, or overheating. Measure the secondary voltage with a suitable high-voltage probe to confirm output; if it is significantly below spec, the transformer likely needs replacement.