YOKOGAWA wt3000 User Manual

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IM 760301-01E
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Index
Faunctional Description
2.6 Integration
The WT3000 can integrate the active power (watt hour), the current (ampere hour), the
apparent power (volt-ampere-hour), and the reactive power (var-hour). During
integration, the measured and computed values of normal measurements can be
displayed in addition to the watt hour, current hour, volt-ampere-hour, var-hour and
integration time.
Measurement Functions of Integration
• Measurement Functions on Each Input Element
The following nine types of numeric data can be determined. For details related to the
determination of measurement function data, see “Appendix 1.”
WP (watt hour, sum of positive and negative watt hours), WP+ (positive watt hour
consumed), WP- (negative watt hour returned to the power supply (regenerated
energy)), q (current hour, sum of positive and negative current hours), q+ (positive
current hour consumed), q- (negative current hour returned to the power supply), WS
(volt-ampere-hour), WQ (var-hour), and Time (integration time).
• Measurement Functions of wiring units ΣA and ΣB (Σ Functions)
The following eight types of numeric data can be determined. For details related to the
determination of measurement function data, see “Appendix 1.”
WPΣ (sum of WP), WP+Σ (sum of WP+), WP-Σ (sum of WP-), qΣ (sum of q), q+Σ
(sum of q+), q-Σ (sum of q-), WSΣ (sum of SΣ), and WQΣ (sum of QΣ)
Integration Mode «For procedures, see sections 5.11 and 5.12.»
There are five moves in the integration function: manual integration mode, normal
integration mode, repetitive integration mode, real-time integration mode, and real-time
repetitive integration mode.
• Manual Integration Mode
Integration continues from the point when it is started to the point it is stopped.
However, when the integration time reaches its maximum (10000 hours) or the
integration value reaches its maximum or minimum (see section 5.11), the integration
is stopped and the integration time and integration value at that point are held.
Integration
time
ResetStart
Integration
value
Stop Start Reset
Hold
Hold
Hold
Hold
When STOP is pressed
or the maximum integration
time is reached
When the maximum
integration value
is reached

YOKOGAWA wt3000 Specifications

General

Brand	YOKOGAWA
Model	wt3000
Category	Measuring Instruments
Language	English