Control & Communications

6

6.8 Breaker Operations Count

Breaker Operations refers to the number of times the device has opened the breaker. The Breaker Operation function allows the setting of the breaker monitoring parameters.

The Sum of Interrupted Current is the total sum of the cur- rents that were interrupted by these breaker openings. The setpoint is triggered when any phase exceeds the set limit.

3500

Breaker Operation

 

Address

Parameter

Selection

3501

Int. I Function

Enabled or Disabled

3502

Int. I Pickup

0-9999.90 kA

 

 

(0.01 kA steps)

3503

Brks Ops Function

Disabled or Enabled

3504

Brks Ops Counter

0-65535

 

 

 

The Interrupted I (current) Function (3501) can be enabled or disabled. When enabled, the function generates an event (which can be matrixed to an output contact) when the inter- rupted current exceeds the pickup value. The interrupted current pickup value (3502) can be set to any value from 0 to 9999.90 kA in steps of 0.01 kA.

The Breaker Operations Function (3503) can be enabled or disabled. When enabled, the function counts the breaker operations since the last reset.

The Breaker Operations Counter (3504) can be set from 0 to 65535.

6.9 Hardware Status (Relay Data)

The Relay Data function provides additional hardware infor- mation on the ISGS relay, shows all set binary inputs and outputs, and displays a relay identification string.

The Circuit Name (7401) identifies a relay, breaker, bus, or feeder which your ISGS relay is protecting. This string (up to 16 characters) is user-definable with Wisdom software. Accessing this parameter through the keypad allows only the display of this string.

All circuit boards installed in your ISGS relay are provided with a serial number and a special identification number. These numbers can be displayed by accessing addresses 7403 to 7407.

Similar to the firmware version identification number of your ISGS relay described in Section 4.1, the serial and identifi- cation numbers of your main board and optional board(s) help Siemens track the versions and options available on your boards.

Binary Inputs (7408) displays the status of the binary inputs as illustrated in Figure 6.2. The status updates automatically as they change.

7400

Relay Data

 

Address

Data

Description

7401

Circuit Name

String of up to 16 characters

7402

MainBd S/N

Serial number of main board

7403

MainBd ID

ID number of main board

7404

OptBd1 S/N

Serial number of option board 1

7405

OptBd1 ID

ID number of option board 1

7406

OptBd2 S/N

Serial number of option board 2

7407

OptBd2 ID

ID number of option board 2

7408

Bin. Inputs

Binary input status

7409

Bin. Outputs

Output contact status

 

 

 

Figure 6.2 Binary Input Status

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Siemens Energy & Automation, Inc.

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Siemens SG8158-00 manual Breaker Operations Count, Hardware Status Relay Data