MGE UPS Systems 225KVA ◗Battery, Total load, Inverter output, Normal AC source, Bypass AC source, 4.8Measurement System

Installation and User Manual

4.8Measurement System

The display may be used to read a number of input and output measurements made at different points in the system. See Figure 4-12.

◗	Normal AC source 1	◗	Inverter output 4
	- phase-to-phase voltages,		-	frequency
	- currents of the three phases,	◗	Total load 6
	- frequency.		-	phase-to-neutral voltage.
◗	Bypass AC source 2		-	phase-to-phase voltages.
	- phase-to-neutral voltage,		-	currents of the three phases.
	- phase-to-phase voltages,		-	frequency.
	- frequency,		-	active and apparent power.

-currents of the three phases.

◗Battery 3

-voltage.

-charge or discharge current.

-remaining battery time (for the UPS unit concerned).

-battery temperature.

Figure 4-12: Measurement System Diagram.

1	3	4	6
U - I - F	U - I	F	U - V - I - F - P

A	B
Q1	Q5N

1

QF1

D

2

U - V - I - FC

Q4S

2

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