PL RU EN Projects co-financed by the European Union See more Home products chokes add to my bookmarks show my bookmarks Chokes The single-phase and three-phase core chokes produced in Elhand Transformers are perfect for the difficult operating conditions of numerous industrial applications. The offered products are used in applications with capacitor banks as filter or protective chokes, they also work to compensate for the capacitive reactive power of unloaded power lines, and as limiting the values of short-circuit currents or the rate of rise of current di / dt or voltage du / dt. The use of modern materials and technologies in combination with innovative design solutions allows us to meet high standards of quality and reliability. The introduction of production standardization, simple and ergonomic solutions causes that we provide products that are user-friendly, easy to install, and do not require additional service during operation. We manufacture our devices based on individual technical requirements of the customer. 1-phase and 3-phase low voltage core chokes are manufactured in accordance with the requirements of EN / IEC 61558 and EN / IEC 60289. The compensation choke is designed to compensate for reactive powercapacitive, resulting from the operation of synchronous machines and extensive LV and MV cable networks with their insufficient load. Co-operating with automatic cos f regulators , chokes are very often combined into batteries. Such batteries enable group, much more effective follow-up compensation of reactive power, which prevents possible overcompensation of the network. The basic operational parameter of this type of chokes is primarily the inductive reactive power they produce. The ED3S motor choke manufactured by our company is designed so that its short-circuit voltage is not less than 2.2% (uk> 2.2% Un). The choke with such selected inductance ensures effective suppression of higher harmonics in the motor current, and thus reduces the steepness of the voltage rise and effectively reduces the amplitude of overvoltages at the motor terminals. Such a choke reliably protects the engine against damage and extends its service life. Many companies offer products with a much lower short-circuit voltage (uk = 0.5% Un - 1.5% Un), wrongly calling them motor chokes, while they only act as chokes limiting the steepness of the voltage rise du / dt. Our extensive offer also includes ED3dU type du / dt limiting chokes with short-circuit voltage within the limits (uk = 0.8% Un - 1.2% Un). This is our separate group of devices. The price of ED3dU chokes is correspondingly lower than the price of ED3S devices. It is up to our clients to choose the most compromise and optimal solution. The wide range of manufactured chokes also includes devices with non-standard parameters and applications in accordance with the customer's requirements. print Network Motorized Restrictive Filtration Smoothing Compensatory Air Couplers Special purpose Medium voltage ELHAND TRANSFORMATORY Sp. z o. o. PL 42-700 Lubliniec, ul. Klonowa 60 site map recommend to a friend newsletter my account Created by ENIGMATIS POLSKA