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油浸式变压器技能上的优越性剖析

油浸式变压器主要由多回路高压开关体系、铠装母线、变压器归纳自动化体系、通讯、远动、计量、电容补偿及直流电源等电气单元组合而成,装置在一个防潮、防锈、防尘、防鼠、防火、防盗、隔热、全封闭、可移动的钢构造箱体内,机电一体化,全封闭运转,主要有以下特色:
Oil immersed transformer is mainly composed of a circuit of high voltage switchgear busbar, transformer induction system, armored automation system, communication, remote control, measurement, capacitance compensation and DC power supply and other electrical units. The device in a damp proof, rust proof, dust prevention, fire prevention, anti-theft, and steel in heat insulation, all closed, mobile made the box body, mechanical and electrical integration, closed operation, mainly has the following features:
(1)自动化程度高:全站智能化规划,维护体系选用变电站微机归纳自动化设备,涣散装置,可完成"四遥",即遥测、遥信、遥控、遥调,每个单元均具有独立运转功用,继电维护功用完全,可对运转参数进行远方设置,对箱体内湿度、温度进行操控和远方烟雾报警,满意无人值勤的需求;依据需求还可完成图画长途监控。
(1) a high degree of automation: Total Station Intelligent Maintenance System of substation planning, selection of inductive automation equipment, lax device can complete the "four remote", namely, telemetry, remote control, remote adjustment, each unit has independent operation function, protection function completely, can be set on the operating parameters of the distance. The box body temperature and humidity control and remote smoke alarm, satisfaction of unattended demand; according to the demand but also can complete the long-distance monitoring picture.
(2) 山东变压器厂家http://www.jnwdsh.com技能先进安全可靠:箱体有些选用目前国内抢先技能及技能,外壳通常选用镀铝锌钢板,构造选用规范集装箱材料及制作技能,有杰出的防腐性能,确保20年不锈蚀,调压变压器内封板选用铝合金扣板,夹层选用防火保温材料,箱体内装置空调及除湿设备,实验变压器设备运转不受天然气候环境及外界污染影响,可确保在-40℃~+40℃的恶劣环境下正常运转。
(2) advanced skills: choose the safe box some domestic leading skills and skills, shell usually use galvanized steel structure, selection of standard container materials and production skills, excellent anti-corrosion performance, ensure that the 20 years do not rust, transformer sealed plate selection Aluminum Alloy gusset plate, sandwich the use of fire insulation materials, the box body the air conditioning device and dehumidifying equipment, the transformer equipment does not operate by natural climate environment and external pollution, to ensure the normal operation of the -40 to +40 DEG C under the harsh environment.
 山东变压器厂家排名
(3)工厂预制化:油浸式变压器规划时,只要规划人员依据变电站的实践需求,作出一次主接线图和箱外设备的规划,就能够选择由厂家供给的箱变标准和类型,一切设备在工厂一次装置、调试合格,真实完成变电站建造工厂化,缩短了规划制作周期;现场装置仅需箱体定位、箱体间电缆联络、出线电缆衔接、维护定值校验、传动实验及其它需调试的作业,悉数变电站从装置到投运大概只需5~8天的时刻,大大缩短了建造工期。
(3) prefabrication: oil immersed transformer planning, as long as the planning personnel according to substation practice demand, make a box outside the main wiring diagram and equipment planning, can choose from manufacturers supply box and standard type, all the equipment in the factory, a device debugging qualified, true complete substation construction factory production planning, shorten the cycle; the field device only box positioning, cable box, contact wire cable connection, maintenance setting verification, transmission experiment and other debugging operations, all from the substation device to just about 5 ~ 8 days of operation time, greatly shorten the construction period.
电力变压器运行中如发生局部发热,在很多情况下,没有表现为电气方面的异常,而首先表现出的是油气分解的异常,即油在局部高温作用下分解为气体,逐渐集聚在变压器顶盖上端及瓦斯继电器内。区别气体产;生的速度和产气量的大小,实际上是区别过热故障的大小。
The power transformer operation such as local fever, in many cases, no abnormal electrical, and the first show is abnormal oil and gas decomposition, which is decomposed into oil gas in local high temperature, gradually gathered in the transformer cover the upper and the gas in the relay. The difference between gas production and birth rate and gas production is in fact the difference between overheating faults.
一、轻瓦斯动作后的处理。轻瓦斯动作发出信号后,首先应停止音响信号,并检查瓦斯继电器内气体的多少,判明原因。
First, light gas after the action. Light gas operation signal, sound signal should be stopped, and check how much gas in the relay, ascertain the reason.
1、非变压器故障原因。如:空气侵入变压器内(滤油后);油位降低到气体继电器以下(浮子式气体继电器)或油位急剧降低(挡板式气体继电器);瓦斯保护二次回路故障(如气体继电器接线盒进水、端子排或二次电缆短路等)。如确定为外部原因引起的动作,则恢复信号后,变压器可继续运行。
1, non transformer fault reason. Such as: air inside the transformer (oil filter); oil level is reduced to below the gas relay (float gas relay) or oil level decreased dramatically (flapper gas relay); gas protection two circuit fault (such as water, gas relay terminal box terminal or the two cable short circuit etc.). If the action is determined as an external cause, after the signal has been restored, the transformer can continue to operate.
2、主变压器故障原因。如果不能确定是由于外部原因引起瓦斯信号动作,同时又未发现其他异常,则应将瓦斯保护投入跳闸回路,同时加强对变压器的监护,认真观察其发展变化。
2, the main transformer fault reason. If you are not sure is due to external causes of gas signal action, also found no other abnormalities, should be input gas protection tripping circuit, while strengthening the monitoring of transformer, careful observation of the development.
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