Today, I give you a detailed introduction to the efficacy and composition of the relay protection device for generators, and clearly put forward the relevant safeguard measures, which have very key practical significance in the work of the relay protection device.
In generator maintenance components produced under the condition of common failures, relay protection devices can selectively will produce fully automatic, have common fault components removed from the generator off part to ensure that there is no problem to recover operation situation, make the common fault components to prevent again suffer harm, in order to reduce the category of power; If the maintenance components found abnormal operation, relay protection device equipment can immediately reflect, according to the maintenance standards, send signals, reduce the load or jump posture command.
At this time, there is generally no provision for the maintenance of fast posture, just according to the generator and components of the damage level requirements of a certain ting, in order to prevent redundant posture. In addition, the relay protection device is also the monitoring equipment of the generator, which can detect the current intensity of the system immediately, and then reflect the operation of the system software, machinery and equipment.
Relay protection device generally consists of input part, accurate measurement part, judgment and reasoning part and output implementation part. The input part of the data signal on the spot is generally to carry out the necessary external solutions, such as protection, pulse signal transformation, low-pass filtering, etc., so that the car relay can reasonably check the spot scalar.
The precise measurement data signal should be transformed into logical data signal. According to the precise measurement of the size, characteristics, logical situation, output order and other information content of each output quantity of a part, the calculation is made according to a certain logical order, and the final position is determined, and the final task is carried out by the output implementation part.
The basic provisions of relay protection devices should meet the requirements of selectivity, quickness, coordination and stability. Selectivity refers to the protection of equipment posture, only the common fault components from the generator when alone removed, so that the category of power failure as small as possible, in order to ensure that there is no problem in the part of all normal operation; Quick sex is common fault short-circuit fault protection equipment should be removed as soon as possible, its purpose is to improve the reliability of the system software, thereby alleviating common fault machinery and equipment and the damage level of the route, smaller hazard category by common faults, improve automatic reclosing and reserved machine automatic money into practical effect.
Coordination refers to the ability to respond to common failures or abnormal operations within the scope of maintenance. Stability refers to the reliability level of the relay protection device in the maintenance area to generate posture.
Jiangsu Meiao Power Technology Co., Ltd. is an important manufacturer of diesel generators. Us ao-generator set manufacturers mainly manufacture and selldiesel generator sets, the power of generator sets is 3-3000KW, mobile station is 24-600KW, Marine emergency diesel generator set 24-800KW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, silent speaker, mobile lighthouse, container, etc.) diesel generator Group at the same time engaged in generator set maintenance and generator set accessories after-sales service.
