1. 單相電子式預(yù)付費(fèi)階梯電價(jià)電能表概述
本系列產(chǎn)品適合于實(shí)行先付電費(fèi)后用電制度的場合進(jìn)行單相交流有功電能的計(jì)量,可實(shí)現(xiàn)電量預(yù)購、zui大負(fù)荷限制等功能,解決了供電部門收費(fèi)的問題。
產(chǎn)品性能符合GB/T17215-2002、GB/T18460.3-2001等標(biāo)準(zhǔn),顯示方式可選(LED或LCD),具有壽命長、準(zhǔn)確度高、過載性能好,功耗低和體積小等優(yōu)點(diǎn)。
2. Introduction
The series of products are applicable to the place where have rules of paying in advance and then consuming to measure single phase AC active electrical energy,it also has multiple functions,such as purchasing in advance, maximal load limiting, user’s information management.
Each of performation accords with GB/T17215-2002、GB/T18460.3-2001 standard, display mode can be selected (LED or LCD),it has many advantages,such as long service life、high accuracy、good overload、low consume and small volume.
1 單相電子式預(yù)付費(fèi)階梯電價(jià)電能表規(guī)格型號
型號規(guī)格 | 參比電壓(V) | 額定頻率(Hz) | 標(biāo)定電流(A) | 儀表常數(shù)(imp/kw.h) |
DDSY870 | 220 | 50/60 | 1.5(6) 2.5(10) 5(20) 10(40) 15(60) 20(80) | 見銘牌標(biāo)識 |
2.Specifications and types
Specifications and types | Reference voltage(V) | Rated frequency(Hz) | Rated current (A) | Meter constant(imp/kw.h) |
DDSY870 | 220 | 50/60 | 1.5(6) 2.5(10) 5(20) 10(40) 15(60) 20(80) | As shown in nameplate |
3.技術(shù)參數(shù)
3.1電氣要求
3.1.1精確度等級:1.0級,2.0級
3.1.2正常工作電壓:0.9Un~1.1Un參比電壓
3.1.3極限工作電壓:0.7Un~1.3Un參比電壓
3.1.4絕緣電壓:≥2000VAC
3.1.5功率消耗:≤2W
3.1.6視在功率:≤10VA
3.1.7起動(dòng):電能表在參比電壓、參比頻率及功率因數(shù)為1的條件下,當(dāng)負(fù)載電不充為0.4%lb(1級表)、0.5%lb(2表)時(shí)電能表應(yīng)該連續(xù)計(jì)量電能。
3.1.8潛動(dòng):當(dāng)電壓回路加115%參比電壓,電流回路無電流時(shí),電能表輸出的脈沖不多于1WH。
3.1.9設(shè)計(jì)壽命:≥10年
3. Technical parameter
3.1 Electrical required.
3.1.1 Accuracy rating:class 1.0,class 2.0
3.1.2Normal working voltage:0.9Un~1.1Un reference voltage
3.1.3Limiting working voltage:0.7Un~1.3Un reference voltage
3.1.4Isolation voltage: ≥2000VAC
3.1.5 Power consumption: ≤2W
3.1.6Apparent power:≤10VA
3.1.7Start:Under the condition that reference voltage, rated frequency and power factor is 1, the meter will record energy continuously.
3.1.8Creeping:when put on 115% rated voltage in voltage circuit ,and there is no current in current circuit,the pulse outputs less than 1wh.
3.1.9Designed life: ≥10 years
3.2環(huán)境要求
3.2.1正常工作溫度:-25℃-+60℃(三相)
3.2.2極限工作溫度:-30℃-+70℃(三相)
3.2.3儲運(yùn)和運(yùn)輸溫度:-45℃—+70℃
3.2.4相對濕度:年平均小于80%
3.2 Environment requirements
3.2.1Normal working temperature:-25℃-+60℃(three phase)
3.2.2Limiting working voltage:-40℃—+70℃
3.2.3Transportation and Storage temperature:-45℃—+70℃
3.2.4Relative humidity (RH):annual mean should be less than 80%
4、基本功能
4.1雙向計(jì)度功能,能夠精確測量正、反兩個(gè)方向的功率,且以一個(gè)方向累計(jì)電量,具有防竊電功能;
4.2采用光電隔離技術(shù)輸出電能脈沖信號,發(fā)光二極管指示用電;
4.3先購電后用電,預(yù)購電量用完則斷電;
4.4顯示屏輪流顯示使用電量和剩余電量;
4.5辨?zhèn)喂δ埽寒?dāng)使用非介質(zhì)時(shí),電能表不會接受指令,拒絕操作;
4.6具有記憶功能,數(shù)據(jù)在斷電后不丟失,上電即可恢復(fù);
4.7具有警報(bào)功能:當(dāng)預(yù)購電量小于設(shè)定電量時(shí)報(bào)警提醒用戶即時(shí)購電;
可選功能:一次應(yīng)急賒電功能、電價(jià)改寫功能、銷過戶功能、監(jiān)控用電負(fù)荷功能。