Elektromotoren und Gerätebau Barleben GmbH products

The gas relay from Elektromotoren und Gerätebau Barleben GmbH is designed for use with both open-type and hermetically sealed transformers, functioning as a monitoring device for oil loss and gas accumulations due to potential transformer faults. This particular model, Type 80 (CF 38), is optimal for hermetically sealed transformers without a nitrogen cushion, ensuring continuous oil level surveillance while equipped on the transformer tank. Additional options such as a pressure switch and a temperature sensor enhance its monitoring capabilities. The device's operation leverages the buoyant force of a float that, in normal usage, remains in the upper position when filled with oil. Gas build-up causes the float to descend, activating a switching contact which sends an alert signal. With a temperature range accommodating from -40 °C to +55 °C, the relay complies with DIN EN 60068-2-78 standards, making it suitable for various climatic conditions.

The Buchholz gas sampler and testers from Elektromotoren und Gerätebau Barleben GmbH are designed to facilitate the sampling and analysis of gases that form in oil-filled electrical equipment. These gases are typically a result of the natural aging process of oil or may occur more frequently due to equipment faults. In cases where severe faults occur, gases rise in the oil and are captured by the Buchholz relay. The Buchholz gas sampler allows for easy collection of these gases, which can then be analyzed directly at the equipment site using models BGT 4.1 and BGT 4.2 from the Buchholz gas tester series. These devices are integral to maintaining the safety and operational integrity of transformers by enabling early detection of faults through gas analysis.

EMB has over four decades of experience in producing electronic ballasts, specifically engineered for diverse transportation applications like rail vehicles, ships, and buses. The electronic ballasts developed by EMB are designed to cater to different lamp types and are compatible with direct current voltage systems. They play a critical role in providing the necessary ignition and operational voltage for lighting systems. The design ensures that the preheating time of fluorescent lamps compensates effectively for ambient temperature variations, guaranteeing optimal performance. These ballasts are robustly tested to withstand various operational anomalies like short circuits, idle modes, defective lamp electrodes, or even polarity reversal at the input. Every component of the ballast is precisely crafted to meet the extensive technical demands it would face in different environments, ensuring reliability and durability.