MGE UPS Systems EPS 8000 User Manual

kVA

KiloVolt-Ampere; is equal to 1000 Volt-Ampere.

L

Line.

LCD

Liquid-Crystal Display unit.

LED

Light Emitting Diode.

Load protected

The attached load is being supplied by the UPS module inverter output, and the

battery is available in the event that incoming (utility) power is lost.

Load not protected

The attached load is being supplied, but the battery system is unavailable.

Low battery 

Shutdown

The battery has reached the lowest permitted operating voltage, and the inverter has

shut down (disconnecting the load) to protect the battery from damage due to further

discharge.

Mains or Mains 1

Main AC input source.

Mains 2

Bypass AC input source.

mA

Milliampere.

MAX.

Maximum.

MCM

Thousand circular mil; standard wire sizes for multiple stranded conductors over 4/0

AWG in diameter.  M is from Roman numerical system indicating 1000.

Module

Refers to individual power inverter module.

N

Neutral.

NC

Normally close.

NO

Normally open.

NEC

National Electrical Code.

NFPA

National Fire Protection Association.

NO. or No.

Part number.

On-battery operation

The attached load is being supplied by the stored energy in the battery system.

On-line mode

Inverter output power is the primary energy source to load.

Off-line mode

Inverter output is off, and the load connected at the inverter output receives power

from utility line via a static transfer switch or maintenance bypass relay.

OSHA

Occupational Safety and Health Agency.

PCB

Printed circuit assembly.

PCB

Printed circuit board.

PWM

Pulse Width Modulation.

Q1

UPS input isolation circuit breaker.