- ページ 4

保護装置 ABB MPS-C 2000のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。ABB MPS-C 2000 18 ページ。 Microprocessor-based protection and metering devices for low voltage power circuit breakers
ABB MPS-C 2000 にも：クイック・スタート・マニュアル (8 ページ)

ページを印刷する

1. Long Time Function

ABB

1. FUNCTIONS.

The electronic trip control device provides the following four basic functions:

1.1 Protection Function

Four basic trip elements within the unit perform the protective functions:

Long time, short time, instantaneous and ground.

1.2 Information Function

An indicator (target) and an LCD screen display information for the tripping functions. The indicator shows if

the device has issued a trip command and the LCD can be polled to determine the type of trip. The LCD and

keypad buttons are used to determine the settings of the unit. A red LED indicates self-monitoring functions.

1.3 Test Functions

The unit can be connected to an external test set to check functions and settings.

1.4 Communication Functions

The unit can be connected to switchgear mounted devices which are connected to ABB INCOM Protocol.

2. SETTINGS.

2.1 Range Selection

The range selector provides the primary amperage used as the base for the unit. It is either set for the 1 X or

0.5 X the breaker rating: Default is 1 X.

2.2 Long Time Function

2.2.1 Threshold (pickup)settings- The range of settings is: 0.5 to 1.0 in steps of 0.1. Multipliers are used in

conjunction with sensor rating and the range selector. Multipliers are selected by keypad input and displayed on

the LCD. Default is 1.0.

2.2.2 Trip Time - Time is defined by long time overcurrent curves (graph) and intermediate values between band

limits. Default is MAX.

2.2.3 Reset Time - Real time is counted up if the current exceeds the function threshold and counted down if the

current drops below the function threshold. Real time is set to zero if the current drops below the power supply

threshold.

2.3. Short Time Function

2.3.1 Threshold (pickup) settings - 2 3 4 5 6 7 8 9 10 DISABLED. The settings are multiples of the sensor ratings

and the range selector. Settings are made by the keypad and the LCD display. If the INST function is disabled, the

short time unit cannot be disabled. Default is DISABLED.

Courtesy of NationalSwitchgear.com

IB 6.1.2.8-1B

Page 4