ABB MPS-C 2000 Snelstarthandleiding - Pagina 3

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Standard Features

Protection

MPSC-2000 is the first device to include Long Time, Short Time,

Instantaneous and Ground trip protection as standard functions, all with

user-selectable settings and curves. A single catalog number provides all

relay characteristics - no rating plugs are required.

MPSC-2000 protection functions are fully self-powered, taking tripping

energy from current conducted through the breaker without an auxiliary

Local and remote access to change relay settings and curves are

supply. The main memory module is non-volatile EEPROM, which stores

restricted to authorized personnel by password protection.

all protection settings and current values at the time of the last trip and

eliminates the need for battery backup.

Metering and Information

MPSC-2000 adds value well beyond the primary function of circuit

protection by providing a long list of breaker operational history

A bright red mechanical target indicates circuit breaker tripping.

The cause of trip can be determined by interrogation of the

device using the keypad and LCD display. The target resets

information as well as complete metering data with breakthrough accuracy

automatically when the unit is re-energized.

for a power circuit breaker trip device. Current and voltage measurements

are within 1% of breaker rating, and power indications are within 2% of

breaker rating.

MPSC-2000 provides user-friendly access to settings and metering data by

an on-screen menu with prompts. The large, easily readable LCD display is

also energy efficient. A 9-volt battery provides power for cold set-up and

A self-monitoring feature continuously monitors the condition

continuous LCD information display, even when the breaker is not closed

of the microprocessor. Normal operation is indicated by a red

LED on the front panel, flashing at the rate of once per

second. Any internal failure is signaled by a steady glow. The

and energized. The tactile touch keypad is impervious to contamination

LED blinks at the rate of 5 times per second to indicate Long

Time pickup, and continues to blink at this rate until reset or

from dust, moisture and lubricants.

until the breaker is tripped.