一、電動車智(zhi)能充電器基本(ben)性能及參(can)數：

1、定時功能：舉例：48V 10AH 電動車充電器為例；

  起充電(dian)流＞1.5A（±0.1A）以上(shang)，進入(ru)10±0.5h定(ding)時。

  當電流降至＜1.5A（±0.1A）而大于1.1A（±0.1A）進入(ru)40±5min定(ding)時。

  當電(dian)流降至＜1.1A（±0.1A）而大(da)于500mA時取消(xiao)前一階段的40min定時，進入新的40±5min定時。

  當電(dian)(dian)流(liu)降至＜500mA而大于(yu)轉燈電(dian)(dian)流(liu)時(shi)取(qu)消前一階段的(de)40min定時(shi)，進入新的(de)40±5min定時(shi)。

  舉例：48V 10AH 電動車充電器為例；

起充電流(liu)＞2.0A（±0.1A）以(yi)上(shang)，進入(ru)10±0.5h定時。

  當電流降至＜2.0A（±0.1A）而大(da)于1.5A（±0.1A）進入60±5min定時(shi)。

  當電流降至＜1.5A（±0.1A）而大于1.0A（±0.1A）時(shi)取(qu)消前一階段的(de)60min定(ding)時(shi)，進(jin)入(ru)新(xin)的(de)60±5min定(ding)時(shi)。

  當電(dian)流降至＜1.0A（±0.1A）而(er)大(da)于轉(zhuan)燈電(dian)流時取消前一階段的(de)60min定(ding)時，進(jin)入(ru)新(xin)的(de)60±5min定(ding)時。

2、過熱保護功能

  由于外界溫度過高或者充電器充電環境通風(feng)不(bu)良導致溫升過高，變壓器溫度(du)達到100℃時，充電器輸出電流減(jian)為(wei)1.3A左右（20AH的降至1.8A）。

3、反接保(bao)護：輸(shu)出反接時，充(chong)電(dian)器無(wu)輸(shu)出，充(chong)電(dian)器燈(deng)亮綠燈(deng)10秒(miao)鐘后(hou)指示燈(deng)紅(hong)綠燈(deng)交替閃爍。

4、空(kong)載電(dian)壓:空(kong)載無(wu)輸出(chu)電(dian)壓。

    二、電動車充電器保護功能檢測方法：

1、  充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器輸出(chu)(chu)線接(jie)通檢(jian)測儀檢(jian)測輸入(ru)端，按規定接(jie)通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器燈亮(liang)而(er)無輸出(chu)(chu)，同時接(jie)入(ru)一只(zhi)同極性的普(pu)通充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器作為(wei)觸發電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源，此時儀器有顯示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器正常輸出(chu)(chu)。檢(jian)測時檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)不宜過(guo)低(di)(di)，48V充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)應(ying)大(da)于(yu)40V以防充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器由于(yu)負載(zai)過(guo)大(da)保護而(er)中(zhong)斷輸出(chu)(chu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)逐漸(jian)降低(di)(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)逐漸(jian)升高(gao)直至轉(zhuan)態(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)轉(zhuan)態(tai)時的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)轉(zhuan)態(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，轉(zhuan)態(tai)前的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)為(wei)最(zui)高(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，轉(zhuan)態(tai)后的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)為(wei)轉(zhuan)態(tai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，低(di)(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測時應(ying)避免電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)過(guo)低(di)(di)以防輸出(chu)(chu)中(zhong)斷。

2、10小時定時功能(neng)檢測(ce)

  將充電(dian)(dian)(dian)(dian)(dian)器直接進入(ru)(ru)(ru)充電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流大(da)于1.5A（20AH的為(wei)2.0A）并保(bao)持大(da)于1.5A（20AH的為(wei)2.0A）充電(dian)(dian)(dian)(dian)(dian)狀態下(xia),10小(xiao)時后充電(dian)(dian)(dian)(dian)(dian)器自動轉換（參考方法：先(xian)將充電(dian)(dian)(dian)(dian)(dian)器調至1.5A±0.1A電(dian)(dian)(dian)(dian)(dian)流以上后切斷(duan)電(dian)(dian)(dian)(dian)(dian)源，再(zai)重新接通電(dian)(dian)(dian)(dian)(dian)源，同(tong)時接入(ru)(ru)(ru)一只同(tong)極性的普通充電(dian)(dian)(dian)(dian)(dian)器作為(wei)觸(chu)發(fa)電(dian)(dian)(dian)(dian)(dian)源，讓充電(dian)(dian)(dian)(dian)(dian)器觸(chu)發(fa)進入(ru)(ru)(ru)10小(xiao)時定時狀態，不(bu)可由低(di)電(dian)(dian)(dian)(dian)(dian)流段調至大(da)電(dian)(dian)(dian)(dian)(dian)流段測試(shi)。）

將充(chong)電(dian)器(qi)(qi)直(zhi)接進入(ru)小于1.5A（20AH的為2.0A）并保持大(da)于1.1A（20AH的為1.5A）充(chong)電(dian)狀態下,40min（20AH的為60min）定時啟動（參考方法：先將充(chong)電(dian)器(qi)(qi)電(dian)流(liu)調至(zhi)1.5A～0.1A后切斷充(chong)電(dian)電(dian)源(yuan)，再重新接通電(dian)源(yuan)，同(tong)時接入(ru)一只同(tong)極(ji)性的普通充(chong)電(dian)器(qi)(qi)作(zuo)為觸發電(dian)源(yuan)讓(rang)充(chong)電(dian)器(qi)(qi)觸發進入(ru)該(gai)40分鐘（20AH的為60min）定時狀態，不(bu)可由低(di)電(dian)流(liu)段(duan)調至(zhi)大(da)電(dian)流(liu)段(duan)測試(shi)。）

將(jiang)充(chong)電(dian)(dian)器直接(jie)進入(ru)(ru)小于(yu)1.1A（20AH的為(wei)1.5A）并(bing)保持大(da)于(yu)500mA（20AH的為(wei)1.0A）充(chong)電(dian)(dian)狀態下,該(gai)40min定時啟動（參考方法：先(xian)將(jiang)充(chong)電(dian)(dian)器電(dian)(dian)流(liu)(liu)調(diao)至(zhi)(zhi)1.0A～0.1A后切(qie)斷充(chong)電(dian)(dian)電(dian)(dian)源(yuan)，再(zai)重新接(jie)通(tong)電(dian)(dian)源(yuan)，同時接(jie)入(ru)(ru)一只同極性的普通(tong)充(chong)電(dian)(dian)器作(zuo)為(wei)觸(chu)發(fa)電(dian)(dian)源(yuan)讓充(chong)電(dian)(dian)器觸(chu)發(fa)進入(ru)(ru)該(gai)40分鐘(zhong)（120AH的為(wei)60min）定時狀態，不(bu)可由低電(dian)(dian)流(liu)(liu)段(duan)調(diao)至(zhi)(zhi)大(da)電(dian)(dian)流(liu)(liu)段(duan)測試(shi)。）

將充電器直接進入電流為500mA（20AH的為1.0A）以下并保持大于轉換點充電狀態下,該40min（20AH的為60min）定時啟動（參考方法：先將充電器電流調至500mA～轉態電流后切斷充電電源，再重新接通電源，同時接入一只同極性的普通充電器作為觸發電源讓充電器觸發進入(ru)該40分鐘定時狀態。）