BTL12-90 EFFEKTA蓄电池【蚌埠】全新价格、含税直销包邮

BTL12-90 EFFEKTA蓄电池【蚌埠】全新价格、含税直销包邮

BTL12-90 EFFEKTA蓄电池【蚌埠】全新价格、含税直销包邮

BTL12-90 EFFEKTA蓄电池【蚌埠】全新价格、含税直销包邮

A、通过观察变压器的外貌来检查其是否有明显异常现象。如线圈引线是否断裂，脱焊，绝缘材料是否有烧焦痕迹，铁心紧固螺杆是否有松动，硅钢片有无锈蚀，绕组线圈是否有外露等。



B、绝缘性测试。用万用表R×10k挡分别测量铁心与初级，初级与各次级、铁心与各次级、静电屏蔽层与衩次级、次级各绕组间的电阻值，万用表指针均应指在无穷大位置不动。否则，说明变压器绝缘性能不良。



C、线圈通断的检测。将万用表置于R×1挡，测试中，若某个绕组的电阻值为无穷大，则说明此绕组有断路性故障。



D、判别初、次级线圈。电源变压器初级引脚和次级引脚一般都是分别从两侧引出的，并且初级绕组多标有220V字样，次级绕组则标出额定电压值，如15V、24V、35V等。再根据这些标记进行识别。



E、空载电流的检测。



（1）直接测量法。将次级所有绕组全部开路，把万用表置于交流电流挡（500mA，串入初级绕组。当初级绕组的插头插入220V交流市电时，万用表所指示的便是空载电流值。此值不应大于变压器满载电流的10％～20％。一般常见电子设备电源变压器的正常空载电流应在100mA左右。如果超出太多，则说明变压器有短路性故障。



（2）间接测量法。在变压器的初级绕组中串联一个10/5W的电阻，次级仍全部空载。把万用表拨至交流电压挡。加电后，用两表笔测出电阻R两端的电压降U，然后用欧姆定律算出空载电流I空，即I空=U/R.



F、空载电压的检测。将电源变压器的初级接220V市电，用万用表交流电压接依次测出各绕组的空载电压值（U21、U22、U23、U24）应符合要求值，允许误差范围一般为：高压绕组≤±10％，低压绕组≤±5％，带ZX抽头的两组对称绕组的电压差应≤±2％。

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1、简洁的外形设计，新颖的电池整体结构设计，确保电池美观大方，装卸方便，申请国家专利。

2、选用优质耐用的进口隔板 选用电阻更小，更腐蚀，孔径更小，孔率更高的进口PE隔板。

3、科学的板栅结构 采用中极耳放射板栅设计，降低电池内阻，更有效的提高了电池的大电流启动能力。大大提高了电池性能。

4、先进的合金配方 采用高纯度多元铅基合金，使板栅具有良好耐腐性能，析气量小，水损耗低，自放电小，保证了电池寿命长。

5、充足的电池容量 ，保证了电池良好的高倍率、大电流启动放电性能好，性能优良

6、优异的供电性能 电池在加入电解液后即可装车使用，免充电，使用方便

主要技术指标：25℃正常使用条件下，浮充寿命可达8年；

蓄电池在使用中不漏液，不产生酸雾，使用期间不需要加注酸水；

自放电： ＜4% (25℃、28天)；

深循环寿命： ≥600 (80%DOC);

工作环境温度： -15℃ - +45℃；

密封反应效率： 大于96%；