fusesaver® - tennessee electric cooperative association

Fusesaver® Automation At The Fuse 2016

Siemens Energy Management Division

Unrestricted

Fusesaver – Reduced Operational Cost

Reclose for Transient Faults without Melting Fuses

LINE CLASH BIRD / WILDLIFE STRIKE

LIGHTNING VEGETATION / TREES

SIEMENS Fusesaver®

Some Typical Transient Faults

Fusesaver - OC & O-CO Modes

Fusesaver OC Fusesaver OCO

Fusesaver clears transient faults before fuse melts. Fusesaver clears transient fault

Fuse clears permanent fault. Fusesaver does 2nd trip to lockout to clear permanent fault.

Best application where fuses are already installed. Just add a Fusesaver OC to achieve improved reliability of fused lateral lines.

Best application on networks that don’t use fuses, i.e. replaces the drop out sectionalizer with better performance.

Fusesaver - OC & O-CO Modes Operating Sequence

Fusesaver OC Fusesaver OCO

TRANSIENT

PERMANENT

Automation At The Fuse What makes up a Fusesaver

Termination Mounting Assembly

Manual protection Setting lever

Termination

Fusesaver - Automation At The Fuse The Fusesaver Architecture

Integrated UFCB

Wireless communications module

Manual and Laptop Operation

Siemens Fusesaver Safety Features

Feature Light Weight – 12lb Can be easily lifted into position. Once installed, no external movement Fault breaking is contained inside the

Fusesaver. For type OC type, the fuse breaks permanent fault and can be easily replaced. For the O-CO type, reset is made by pushing the external close lever.

60 seconds “walk away” Once a TRIP or CLOSE lever is pushed there is a 60 second delay to clear the area before operation. The LED light indicates status.

Siemens Fusesaver Safety Features

External Manual Lever to lock protection mode.

Automation At The Fuse Single-phase or Three-phase “ganged” configuration

The Fusesaver can operate in either a pure single-phase mode or as a member of a coordinated group of two or three. Short range radios in the Fusesaver allow it to connect to up to two nearby Fusesavers and form a “tribe”. Allows synchronized manual tripping of three phases. Allows three-phase lockout

Siemens Fusesaver – Product Family Installation Types

Typical pole-mounted

installation

Line-clamp assembly

Typical cross-arm mounted

installation Through bolt Fish plate

Automation At The Fuse Installation Possibilities

Should target the shortest installation time possible – 20 mins per phase might be typical.

Installed on line Installed on cross-arms

Installation Examples

Siemens Connect: PC with wireless connection

Siemens Connect provides a means for utility personnel to interface with the Fusesaver during installation, workshop testing, system upgrades, and for fault finding Wirelessly connects to the Fusesaver Automatically downloads all events and data logs on connection. Saves data into an offline database for offsite analysis Data analysis to verify performance or identify settings modifications

Fusesaver - Automation At The Fuse Pre-defined and Configurable Device Profiles

A profile is uploaded into each Fusesaver that determines how the device will behave. An appropriate, pre-validated profile is selected from a profile database containing only those profiles relevant to the user. Pre-defined profiles speed up installation by keeping commissioning to a minimum.

Fusesaver – Increased Network Intelligence

Siemens Fusesaver Event Log

The Fusesaver’s event database saves up to 3,000 significant events such as a protection trip, auto close, manual operation, protection mode change or line current off. The events are normally marked with the time of occurrence and are displayed in sequence.

Siemens Fusesaver Site performance data

Reliability Data Availability Data The purpose of the line reliability analysis tool is to allow the user to generate useful reliability performance data for a particular line.

The availability analysis tool is to assist the user to assess whether there is enough line current available to power the Fusesaver on a consistent basis. The line availability represents the percentage of time that line current is on in a given period.

Siemens Fusesaver Load Profiling

The Fusesaver is normally installed on lines where the utility typically has few devices that provide information on demand.

The Fusesaver captures the minimum, maximum and average current for each 24 hour period.

This data is stored in on-board non-volatile memory and is downloaded by Siemens Connect as part of the event log.

Note : Load profile data is not available as a DNP3 analogue point. The user would use the line current as DNP 3 analogues in this case.

Siemens Fusesaver Rating Overview

Model type Standard range High range Minimum line current for operation 0.5 A 1.0 A

Fuse ratings 5-50 A 5-100 A

Rated normal current 100 A 200 A

Rated short-circuit breaking current Isc 4 kA 4 kA

Rated short-circuit making current Ipeak 10 kA 10 kA

Rated short-time current 4 kA 4 kA

Rated short-time current duration 0.2 s 1.0 s

Fault break operations at 100% 30 30

Fusesaver has been type tested in accordance with the applicable sections of the IEC: 62271-100 circuit breaker standard. The Fusesaver is available in three models dependent upon minimum line current, rated current and fault current capability:

Siemens Fusesaver Product Overview

Model Type Low Range Standard Range High Range

Rated voltage 15.5 / 27 kV

Rated lightning impulse withstand voltage Up 110 / 125 kV

Rated power-frequency withstand voltage Ud (60 s) 50 / 60 kV

Minimum tripping current (configurable) X 0,5 fuse rating

Mechanical operations 2,000

Full fault operations 70

Rated frequency 50 / 60 Hz

Weight 5.5 kg Maximum operating ambient air temperature +50 °C Minimum operating ambient air temperature -40 °C Solar radiation 1.1 kW/m2

Maximum altitude 3000 m

Humidity 0 to 100 %

Fusesaver Features/Benefits

1.   Optimal protection of spur/lateral lines. Minimizes number of customers affected and duration of outages due to transient faults.

2.   Self powered from minimal line current – as little as 0.15A.

3.   Isolate line in case of permanent fault.

4.   Configurable and powerful protection options. a)   Multiple curves possible b)  Change of protection modes c)   Three phase lock-out and backfeed blocking d)  Thermal overload

Fusesaver Features/Benefits

5.   Manual switching of line. 3-phase synchronous switching to full load current rating.

6.   Fault passage indication in case of permanent fault.

7.   Load profile data collection.

8.   Comprehensive event log

9.   Configure, reconfigure and download data via wireless connection from ground level – no need to remove unit from service

10. Light weight, simple and quick to install. Multiple installation options available

The Fusesaver – A Low Cost Switching Solution

1.   Siemens Fusesaver Basic Operation Protects against outage from a Transient

(Temporary) Fault condition at Fuse

2.   Siemens Fusesaver Advanced Operation

The addition of a communications module provides

advanced Fusesaver operations.

3.   Siemens Fusesaver Advanced Operation + RCU SCADA Interface

The addition of RCU achieves greater value and

service of the Fusesaver asset

Uses the existing communications network

Fusesavers and DA Improving the Performance of Fused Laterals

Fusesaver - Automation At The Fuse Fusesavers as participants in Distribution Automation

With their integrated sensing they are another point of SCADA visibility. With their self-powered magnetic actuator and remotely selectable protection modes they are another point of SCADA control. It has memory to store the histories of the events and loads seen by these sensors or to make these events available to SCADA and DA schemes. An application example could be for them to be put into single-shot mode after a particular fault event handled by DA.

Fusesaver - Automation At The Fuse Siemens Remote Control Unit (RCU)

SIEMENS Remote Control Unit IP55

Solar power supply (optional) for Remote Control Unit

Fusesaver

Communication module attached to Fusesaver (mandatory for use with RCU)

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Fusesaver – Remote Control Unit

Ø  Remotely control Fusesavers including; Ø  Trip and close Ø  Change operational (policy) parameters Ø  Local / Remote Modes

Ø  Receive fault alerts including; Ø  Protection Operation Alarm Ø  Loss of supply Ø  End of life Ø  Low battery Alarm

Ø  Retrieve events, reliability data and load data

Ø  DNP3 SCADA Interface

and Radio Supply provided

The Siemens Remote Control Unit (RCU) acts as an interface between a set of installed Siemens Fusesavers and a utility’s SCADA system.

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Fusesaver Fuse

Communications module Crew using Siemens Connect

Siemens RCU

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Fusesaver - Automation At The Fuse Fusesavers as participants in Distribution Automation

+

SCADA

Sub-Station Data

Concentrator

Radio Control Unit (RCU)

DNP3

IEC

6185

0

Wireless

Wireless

Fusesaver - Automation At The Fuse Benefits of integrating the fuse level into DA

Reduces operating costs with remote control, fault and event data, and automated mode changes. More real network information available to the over distribution SCADA. Greater network granularity for the DA scheme perspective in both network awareness and control.

Fusesaver - Automation at the fuse RCU Characteristics

Purpose designed for installation outdoors. Wireless connection between Fusesaver and Communications Unit Provides battery backup to ride-through loss of mains Simple or no HMI – user preference Transceiver mounting tray and power supply available.

RCU

Fusesaver - Automation At The Fuse Protocol, Bandwidth, and Communications Medium

DNP3 available. Bandwidth demand can be adjusted through protocol point selection. Communications medium is typically determined by user requirements – cellular, mesh radio, licensed radio, WiMAX

Automation At The Fuse Questions?

Thank You!

Steve Pell Product Manager Siemens MV Switchgear Division Mobile: (919) 325 6347 [email protected]

Fusesaver® Automation At The Fuse

fusesaver® - tennessee electric cooperative association

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