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BENTLY 136188-01監(jiān)測(cè)繼電器
定義運(yùn)行函數(shù)的處理單元。ParSet 4..1用于確定特定功能在哪一組參數(shù)中激活的參數(shù)(見第5.11節(jié))。
電流輸入模擬電流I/P通道。所有當(dāng)前I/P可供選擇。角測(cè)量實(shí)際功率的特征角。在測(cè)量視在時(shí)也考慮相位角權(quán)力不應(yīng)改變0.0度的默認(rèn)設(shè)置,測(cè)量時(shí)電壓和電流I/P同相時(shí)純實(shí)功率,例如測(cè)量接地相位時(shí)同一導(dǎo)體的電壓和電流。在以下情況下,設(shè)置可能從0.0變化:c.t.和v.t.相位誤差補(bǔ)償
相接地和相對(duì)相電壓之間的相移補(bǔ)償電壓和電流之間的相移補(bǔ)償一般電流(例如,測(cè)量S-T電壓和R電流)。電壓InP定義v.t.輸入通道。所有電壓I/P可供選擇。
PN被測(cè)功率的參考值。
這使得被測(cè)功率的振幅能夠:例如考慮額定功率因數(shù)。
電壓模式
電壓測(cè)量方法的定義以及功率的計(jì)算。設(shè)置:相接地:所選電壓I/P的電壓為直接測(cè)量。
相-相-相電壓由測(cè)量所選電壓I/P和周期滯后電壓通道。
當(dāng)只有單相連接或相-相電壓被連接。設(shè)置說明必須仔細(xì)設(shè)置測(cè)量功能,以獲得
這是最好的準(zhǔn)確性。必須遵守以下規(guī)定:C.t./v.t.輸入通道參考值
電壓和電流模擬的參考值輸入通道必須設(shè)置為,當(dāng)額定值
應(yīng)用于I/P,測(cè)量1.000 UN和1.000 IN通過函數(shù)。
在大多數(shù)情況下,可以保留c.t.和v.t.輸入通道的默認(rèn)參考設(shè)置(1.000)。筆記對(duì)三相電壓或電流I/P的參考值所做的任何改變適用于所有相。
Explanation of parameters
RunOnCPU
defines the processing unit which runs the function.
ParSet 4..1
Parameter for determining in which set of parameters a particular function is active (see Section 5.11.).
CurrentInp
Analogue current I/P channel.
All current I/P's are available for selection.
Angle
Characteristic angle for measuring real power. The phaseangle is also taken into account when measuring apparent
power.
The default setting of 0.0 degrees should not be changed,
when voltage and current I/P's are in phase when measuring
purely real power, e.g. when measuring the phase-to-ground
voltage and current of the same conductor.
The setting may vary from 0.0 in the following cases:
compensation of c.t. and v.t. phase errors
compensation of the phase-shift between phase-toground and phase-to-phase voltages
compensation of the phase-shift between voltage and
current in general (e.g. when measuring S-T voltage and
R current).VoltageInp
Defines the v.t. input channel.
All voltage I/P's are available for selection.
PN
Reference value for the power being measured.
This enables the amplitude of the power being measured to
be adjusted, e.g. to take account of the rated power factor.
Voltage mode
Definition of the method of voltage measurement and therefore also the calculation of power. Settings:
phase-to-ground The voltage of the selected voltage I/P is
measured directly.
phase-to-phase The phase-to-phase voltage formed by
the selected voltage I/P and the cyclically lagging voltage channel is measured.
This setting is not permitted when only a
single-phase is connected or when
phase-to-phase voltages are connected.Setting instructions
The measurement function must be carefully set to obtain the
best accuracy. The following must be observed:
C.t./v.t. input channel reference values
The reference values for the voltage and current analogue
input channels must be set such that, when the rated values
are applied to the I/P's, 1.000 UN and 1.000 IN are measured
by the function.
In most cases, it will be possible to retain the default reference setting (1.000) for the c.t. and v.t. input channels. Note
that any changes made to the reference value of a threephase voltage or current I/P apply to all phases.