Basler Electric / Kohler BE1-11g Generator Protection Relay G5A3M2J2N0E000

Basler Electric / Kohler BE1-11g Generator Protection Relay G5A3M2J2N0E000

Output Logic Settings

BESTlogic, as implemented in the BE1-GPS100. supports up to 16 output expressions. The output

expressions are called virtual outputs to distinguish them from the physical output relays. VOA and VO1

through VO5 drive physical outputs OUTA (failsafe alarm output) and OUT1 through OUT5. respectively.

The rest of the virtual outputs can be used for intermediate logic expressions.

For example, OUT 1 is wired to the trip bus of the circuit breaker. To set up the logic to trip the breaker,

the BESTlogic setting command might be SL-VO1=VO11+101T+BFPU for Set Logic - Virtual Output 1 =

to Virtual Output 11 (which is the intermediate logic expression for all of the function block tripping

outputs) or (+) 101T (the trip output of the virtual breaker control switch) or (+) BFPU (the pickup output of

the breaker failure function block that indicates that breaker failure has been initiated).

User Interfaces

Three user interfaces are provided for interacting with the BE1-GPS100 relay: front panel HMI, ASCII

communications, and BESTCOMS for BE1-GPS100. The front panel HMI provides access to a subset of

the total functionality of the device. ASCII communications provides access to all settings, controls,

reports, and metering functions of the system. BESTCOMS for BE1-GPS100 is software used to quickly

develop setting files, view metering data, and download reports in a user-friendly, Windows based

environment.

Front Panel HMI

The front panel HMI consists of a two line by 16 character LCD (liquid crystal display) with four scrolling

pushbuttons, an edit pushbutton, and a reset pushbutton. The EDIT pushbutton includes an LED to

indicate when edit mode is active. There are five other LEDs for indicating power supply status, relay

trouble alarm status, programmable major and minor alarm status, and a multipurpose Trip LED that

flashes to indicate that a protective element is picked up. The Trip LED lights continuously when the trip

output is energized and seals in when a protective trip has occurred to indicate that target information is

being displayed on the LCD. A complete description of the HMI is included in Section 10. Human-Machine

Interface.

The BE1-GPS100 HMI is menu driven and organized into a menu tree structure with six branches. A

complete menu tree description with displays is also provided in Section 10. Human-Machine Interface. A

list of the menu branches and a brief description for scrolling through the menu is in the following

paragraphs.

1. REPORT STATUS. Display and resetting of general status information such as targets and

alarms.

2. CONTROL. Operation of manual controls such as virtual switches, selection of active setting

group, etc.

3. METERING. Display of real-time metering values.

4. REPORTS. Display and resetting of report information such as time and date, demand registers,

breaker duty statistics, etc.

5. PROTECTION. Display and setting of protective function setting parameters such as logic

scheme, pickups, time delays, etc.

6. GENERAL SETTINGS. Display and setting of non-protective function setting parameters such as

communication, LCD contrast, and CT ratios.

Each screen is assigned a number in the HMI section. The number indicates the branch and level in the

menu tree structure. Screen numbering helps you to keep track of where you are when you leave the

menu tree top level. You view each branch of the menu tree by using the RIGHT and LEFT scrolling

pushbuttons. To go to a level of greater detail, you use the DOWN scrolling pushbutton. Each time a

lower level in a menu branch is reached, the screen number changes to reflect the lower level. The

following paragraphs and Figure 2-2 illustrate how the display screens are numbered in the menu tree.

Viewing the 47 pickup and time delay settings of Setting Group 1 involves the following steps:

1. At the top level of the menu tree, use the LEFT or RIGHT scrolling pushbuttons to get to the

PROTECTION logic branch (Screen 5).

2. Press the DOWN scrolling pushbutton to reach the SETTING GROUP level (Screen 5.1).

3. Scroll RIGHT to the SETTING GROUP 1 branch (Screen 5.2).

4. From Screen 5.2. scroll down to the next level of detail which is the 24 SETTINGS (Screen 5.2.1).

5. Scroll right to the 47 SETTINGS (Screen 5.2.7) and then down to reach the 47 pickup and time

delay settings (Screen 5.2.7.1).

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