英语翻译5 技术参数5.1 额定参数5.1.1 额定一次电压：35/√3 kV5.1.2 额定绝缘水平：40.5/95/185kV5.1.3 额定二次电压二次绕组（测量绕组及保护绕组3P级）：100/√3 V剩余电压绕组（3P级）：100/3 V 5.1.4 额定输出测量0.2级：30VA测量0.5级：50VA保护3P级：100VA5.1.5 热极限负荷：1000VA;2×500VA5.1.6 额定频率及相数：50Hz～60Hz、单相5.1.7 负荷功率因数：COSφ=0.8(滞后)5.1.8 额定电压因数及允许持续时间1.2倍连续1.9倍 8h 5.2 绕组准确级电压误差和相位差限值5.2.1 测量用绕组电压误差和相位差限值在额定频率、80%～120%额定电压之间的任一电压、二次绕组负荷在25%～100%额定负荷之间（功率因数为0.8滞后）的任意值下,电压误差和相位差不得超过表2所列值.准确级 电压误差,±% 相 位 误 差±(’ ) ±card0.2 0.2 10 0.300.5 0.5 20 0.60注：当互感器具有两个分开的二次绕组时,每个绕组应该满足各自的准确级要求,此时另一个绕组则带有25%～100%额定负荷中的任意值.5.2.2 保护绕组及剩余电压绕组的电压误差和相位差限值在额定频率、5%额定电压至额定电压乘以额定电压因数的电压下、二次绕组负荷在25%～100%额定负荷之间（功率因数为0.8滞后）的任意值时,电压误差和相位差不得超过表3所列值.表3准确级 电压误差,±% 相 位 误 差±(’ ) ±card3P 3 120 3.56P 6 240 7.0注：当互感器具有分开的二次绕组时,每个绕组应该满足各自的准确级要求,此时另一个绕组则带有25%～100%额定负荷中的任意值.在2％额定电压下,当负荷为25～100％额定负荷的任一值,且功率因数为0.8（滞后）时,其电压误差和相位差不超过表3所列限值的两倍.5.3 温升限值：允许的绕组温升为75K5.4 绝缘要求5.4.1 一次绕组的额定绝缘要求5.4.1.1 额定感应耐受电压(一次绕组短时耐压)能耐受185 kV(方均根值) 、150Hz的电压,持续40s.5.4.1.2 额定雷电全波冲击耐受电压在185kV(峰值)下正负极性各15次冲击下,互感器不应损坏.5.4.1.3 雷电截波冲击耐受电压截波耐受电压为212.8kV(峰值),负极性3次.5.4.1.4 一次绕组接地端子(N)对二次绕组、剩余绕组及地应能耐受的额定短时工频耐受电压为5 kV (方均根值)、持续1min.5.4.2 局部放电要求预加电压为额定感应耐受电压的80%,测量电压48.6kV时,产品视在局部放电量不超过5pC..5.4.3 外绝缘湿感应耐受电压为95 kV5.4.4 二次绕组的短时工频耐受电压要求二次绕组、剩余电压绕组之间及对地应能承受额定工频耐受压3kV(方均根值),持续时间为1 min.5.4.5 互感器一次绕组对各二次绕组及地之间绝缘电阻不小于500MΩ,各二次绕组之间及对地的绝缘电阻不小于100MΩ.5.5 短路承受能力当互感器在额定电压下励磁时,能承受1s外部短路的机械效应及热效应而无损伤.5.6 电容和介质损耗因数 (tanδ)在额定频率,产品施加10 kV电压时,产品的整体介质损耗因数 (tanδ) ≤0.02. 英语
网友回答
【答案】 5 technical parameters
5.1 rated parameters
5.1.1 once rated voltage:35 / √ 3 kV
5.1.2 rated insulation level:40.5/95/185 kV
5.1.3 rated secondary voltage
Secondary windings (measuring winding and winding protection P-3):100 / √ 3 V
Winding residual voltage (P-3):100 / 3 V
Rated output 5.1.4
Measuring 0.2:30 VA
Measuring 0.5:50 VA
Protection P-3:100VA
5.1.5 thermal limit load:1000 VA; 2 × 500VA
5.1.6 rated frequency and phase:50 Hz to 60Hz,single phase
5.1.7 load power factor:COS φ = 0.8 (deferred)
5.1.8 rated voltage and allow the duration factor
Continuous 1.2 times
1.9 times 8h
5.2-winding voltage accuracy and phase error limits
5.2.1 Measurement winding voltage and phase error limits
At the rated frequency of 80% to 120% of rated voltage of a voltage between the secondary windings load of 25% to 100% between the nominal load (lagging power factor of 0.8) arbitrary value,voltage and phase error not Table 2 in value over.
Accurate-voltage error,phase error of ±%
± ( ') ± card
0.2 0.2 10 0.30
0.5 0.5 20 0.60
Note:When transformer has two separate secondary windings,each winding should meet their respective requirements accurate level,this is another winding with 25% to 100% of rated load arbitrary value.
5.2.2 protection of the remaining voltage winding and winding voltage and phase error limits
At the rated frequency,5% rated voltage to rated voltage multiplied by the factor rated voltage of voltage,load in the secondary windings 25% to 100% between the nominal load (lagging power factor of 0.8) arbitrary value,the voltage and phase error Table 3 shall not exceed difference in value.
Table 3
Accurate-voltage error,phase error of ±%
± ( ') ± card
3P 31203.5
6P 62407.0
Note:When is separate from the transformer secondary windings,each winding should meet their respective requirements accurate level,this is another winding with 25% to 100% of rated load arbitrary value.
2% rated voltage,when the load is from 25 to 100% of rated load of any value,and power factor of 0.8 (backward),its voltage and phase error does not exceed the limits set out in Table 3 twice.
5.3 temperature limits:allow the winding temperature is 75 K
5.4 insulation requirements
5.4.1 rated a winding insulation requirements
Rated voltage tolerance induction 5.4.1.1 (a winding short-term pressure)
Tolerance to 185 kV (both the root value),150Hz voltage of 40-s.
5.4.1.2 rated lightning full-wave shock tolerance in the 185 kV voltage (peak) of the positive and negative polarity of the impact of 15,should not be damaged transformer.
5.4.1.3 lightning latest wave voltage shock tolerance
For the latest wave tolerance 212.8 kV voltage (peak),the sum of three times.
Winding a grounding terminal 5.4.1.4 (N) on the secondary winding,winding and the remainder should be tolerance for the short-term frequency tolerance rated voltage of 5 kV (both the root value),continued for 1 min.
5.4.2 partial discharge requirements
Pre-voltage tolerance induction rated voltage of 80%,48.6 kV voltage measurement,the product,as in partial discharge of not more than 5 pC..
5.4.3 tolerance induction,wet insulation voltage of 95 kV
5.4.4 secondary windings of the short-term frequency tolerance voltage requirements
Secondary windings,and the remaining voltage between the windings and to be capable of absorbing the pressure rated frequency tolerance 3 kV (both the root value),for the duration of 1 min.
5.4.5 a winding on the transformer secondary windings and insulation resistance between not less than 500 M Ω,and the secondary winding between the insulation resistance of not less than 100 M Ω.
5.5 Short-circuit affordability
When the transformer at rated voltage excitation,can withstand a short circuit s external mechanical effects and thermal effects without injury.
5.6 capacitance and dielectric loss factor (tan δ)
At the rated frequency,voltage of 10 kV on products,the product's overall dielectric loss factor (tan δ) ≤ 0.02.