JJG 596-1999 电子式电能表

'U}7tr看中华人民共和国国家计量检定规程

JJG596-1999

电子式电能表

ElectricalEnergyMeterswithElectronics

1999一10一21发布200()一03一15实施

国家质量技术监督局发布

J.1G596-1999

电子式电能表检定规程飞.令弓乙乙乙乙乙.沪

广0.O.口.0.0.口.0.0.0.0.O.O.0.圣VerificationRegulationofElectricalJJG596-1999代替JJG596-1989EnergyMeterswithElectronics、.0.0.o.口.口.o.0.0.o.0.o.o.。

本规程经国家质量技术监督局于1999年10月21日批准，并自2000年03月15日起施行。

归口单位:全国交流电量计量技术委员会

起草单位:辽宁省质量计量检测研究院

参加起草单位:沈阳电业局计量所上海市计量测试技术研究院浙江海盐电力仪表厂

本规程委托全国交流电量计量技术委员会负责解释

JJG596-1999

本规程主要起草人:

苏彦禹参加起草人:

赵沈玉

董北浩

吴其康

郁伟

(辽宁省质量计量检测研究院)

(辽宁省质量计量检测研究院)(沈阳电业局计量所)(上海市计量测试技术研究院)(浙江海盐电力仪表厂)

ITG596-1999

目录

技术要求····························································??(1).1外观································。···········??(1).2基本误差··························································??(1)3输出与显示·······································??(3).4控制······························································??(4).5启动、潜动和停止···································??(4).6工频耐压和绝缘电阻···············································??(4).7测量的重复性·············，······················??，’二(5).8日计时误差和时段投切误差·............................................(5).9需量示值误差·····。·························，········??(5).10需量周期误差··。··································??(5)检定条件················。··························??(5).1检定电能表时应具备的基本条件·........................................(5)2确定电能测量基本误差的检定装置··································??(7).3标准时钟的准确度···································??(9).4确定需量误差时的检定条件········································??(9)检定项目···························································??(9).1标准电能表检定项目···············································??(9)2安装式电能表检定项目·············································??(9)检定方法····························································??(9).l工频耐压和绝缘电阻试验··········································??(9).2直观检查和通电检查···············································??(10).3启动、潜动和停止试验································??(10)

门卫五

，1

，1

‘es

jse

ll

﹄1且

Jll

刁..

，1

11

校核计度器示数····································??(10)确定电能测量基本误差································??(12)确定电能测量标准偏差估计值···········，················??(16)确定电能测量的24h变差·········。····················??(16)确定8h连续工作误差改变量···························??(16)确定需量示值误差···································??(16)确定需量周期误差·....................................(17)确定日计时误差和时段投切误差·······················。···········??(17)

月竹

‘J

产0

7

On

C，10l检定结果的处理和检定周期······················。········??(18)检定结果的处理····································??(18)检定周期·········································??(19)t

勺︸份一勺︸，︸勺︸八j

门j

内j

月4

4

4

4

4

Jq

‘q

4

JJlt

4

4

4

rJ

工、J5.2

JJG596-1999

附录A检定接线图····································??(20)附录B测量数据化整的方法···········································??(21)附录C标准电能表“检定证书”和“检定结果通知书”背面格式·········??(22)

JJG596-1999

电子式电能表检定规程

本规程适用于新生产、使用中和修理后，额定频率为50Hz或60Hz，利用电子元(器)件的特性测量交流有功电能量的电子式电能表(以下简称电能表)的检定。这些电能表包括标准电能表和安装式电能表。本规程不适用于感应式电能表的检定。

1技术要求

1.1外观受检电能表上的标志应符合国家标准或有关技术标准的规定，至少应包括以下内容:厂名;计量器具制造许可证标记及编号;出厂编号;准确度等级;脉冲常数;额定电压;基本电流及额定最大电流。1.2基本误差1.2.1基本误差以相对误差的百分数表示。在本规程2.1规定的条件下，电能表的基本误差极限值(简称基本误差限)不得超过表1至表4的规定。

表1单相和三相(平衡负载)标准电能表的基本误差限

类别负载电流功率因数coso基本误差限(%)0.02级0.05级0.1级0.2级

A

型

0.05161.0士004士0.1士0.2士0.3

O.1Ib一I_1.0士0.02土0.05士0.1士0.2

O.llb0.5(L);0.8(C士0.05士0.15土0.3士0.4

0.2160.5(L);0.8(C土0.03士0.075士0.15士0.3

0.516一I_0.5(L);0.8(C士0.02士0.05士0.1土0.2

用户特殊要求时0.216一I_0.5(C士0.03士0.1士0.2士0.40.25(L)士0.04士0.15士0.3士05

B型

0.516一I_1.0士0.02士0.05士01士0.2

0.54-I}0.5(L);0.8(C士0.02士0.05士0.1士0.2

用户特殊要求时0.516一I_0.5(C士0.03

士0.1士0.2士0.4

0.25(L)士0.04土0.15士0.3士0.5注:I6墓本电流，即确定电能表有关特性的电流值;L—代表感性负载;C-代表容性负载;I--额定最大电流;A型表与B型表的区别是B型表无轻载时的墓本误差要求。

JJG596-1999

表2不平衡负载时三相标准电能表的基本误差限

类别负载电流功率因数coso基本误差限(%)0.02级0.05级0.1级0.2级

A型

O.llb一I_1.0士0.03士0.075士0.15士0.3

0.2160.5(L)士0.04士0.1士0.2士0.40.516一I_0.5(L)士0.03士0.075士0.15士0.3

R型0.516一I_1.0士0.03士0.075士0.15士0.30.516一I_0.5(L)士0.03士0.075土0.15士0.3

注:1不平衡负载是指在对称的三相电压下，电能表任一电流线路有电流，其余电流线路无电流;2功率因数角0是指加在有电流那一组元件上的电流与电压间的相位差。表3单相和三相〔平衡负载)安装式电能表的基本误差限

类别负载电流功率因数coso基本误差限(%)0.2级0.5级1.0级2.0级

经互感器接通的电育L表

0.01,6毛I<0.05161.0士0.4士1.0

0.02I6(I<0.05161.0士1.5士2.50.0516镇I毛I_1.0士0.2士0.5士1.0士2.0

0.0216镇I<0.'Ib0.5(L);0.8(C土0.5士1.0

0.051b镇I<0.1Ib0.5(L)士1.5士2.50.8(C)士1.5

0.116毛I毛I_0.5(L)士0.3士0.6士1.0士2.00.8(C士0.3士0.6士1.0

用户特殊要求时’0.lIb(I镇I-(Ib)0.25(L)士0.5士1.0士3.50.5(C士0.5士1.0士2.5直接接通的电育挂表及多功能电能表

0.054镇I<0.lIb1.0士0.4士1.0士1.5士25

0.1l6镇I镇I_1.0士0.2士0.5士1.0士2.0

0.14镇I<0.2Ib0.5(L)士0.5士1.0士1.5士2.50.8(C)士0.5士1.0士1.5

0.24成I<I_0.5(L)士0.3士0.6士1.0士2.00.8(C)士0.3士0.6士1.0

用户特殊要求时0.21,蕊I镇Ib0.25(L)士0.5士1.0士350.5(C)士0.5士1.0士2.5*对1.0级表为0.14镇I毛I6-

JJG596-1999

表4不平衡负载时三相安装式电能表的基本误差限

2.2在检定周期内，电能表的基本误差值不得超过表1至表4的规定。标准电能表在检定周期内基本误差改变量的绝对值不得超过基本误差限的绝对值。1.2.3标准电能表在24h内的基本误差改变量的绝对值不得超过基本误差限绝对值的1/51.2.4从预热时间结束算起，标准电能表连续工作8h，基本误差不得超过基本误差限，且基本误差改变量的绝对值不得超过表5的规定。

表5标准电能表连续工作8h的允许基本误差改变A

被检表准确度等级0.02级0.05级。.，级一。.2级

允许基本误差改变量的绝对值(%)0.0060.0150.030.06

1.3输出与显示1.3.1标准电能表应具有(配有)电能值或高频脉冲数的显示，也可有高频和低频脉冲输出。高、低频脉冲均应为一定幅值的矩形波，要给出高频和低频脉冲输出的脉冲常数CH(PH/kW"h)和CL(PL/kW"h)，并要使显示与脉冲输出所代表的电能值一致。1.3.1.1各级标准电能表，在输人为额定功率时，高频脉冲频率FH(I-IZ)不得低于表6的规定。

衰6标准电能衰在顺定翰入功率下的离组脉冲绷率F?值

电能表准确度等级0.02级0.05级0.1级0.2级

FH最小值(Hz)5000200010005阅

3.1.2各级标准电能表显示器的显示位数和显示其被检表误差的分辨率不得少于表7的规定。

JJG596-1999

表7标准电能表显示器的显示位数和显示其被检表误差的分辨率

标准电能表准确度等级

显示相应电能值时最少显示位数

显示被检表误差时的分辨率

0.02级{0.05级一0.1级0.2级

0.001一0.01一0.01一0.01

1.3.2安装式电能表应具有电能值(kW-h)显示，并应有供测量误差的脉冲输出要给出脉冲常数C(P/kW"h)。要使显示与输出脉冲的关系与铭牌上的标志一致。1.3.3电能表显示器要能够复零。当为自动复零(或自动转换显示内容)