© abb group november 11, 2015 | slide 1 reyrolle lmt breaker retrofit bu ppmv – pg service...

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Reyrolle LMT Breaker RetrofitBU PPMV – PG ServiceMarketing and Sales


The Breaker Retrofit Table of Contents

Retrofit Concept

General Description

Technical Specification

Necessary details for standard retrofit solutions

Manufacture Process

Certification

Contact and Support



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Retrofit ConceptRetrofit Aim

RETROFIT means the implementation of modern components (primary switching devices and digital protection/control technology) in the existing MV installation with following benefits Cheaper than a complete replacement Short implementation time

for replacement Minimum shutdown of the switchboard Remaining service life extension Improved operator protection Minimisation of further mainte-

nance costs Warranty on the conversion work Spare parts availability for long time


Retrofit ConceptThe Benefits

Safety

Technology

Bus communication between breaker and control panel

Motorized rack-in rack-out operations

Reliability

Quality of Supply Through advanced switching features.)

Faster reclosing times

Large communication option to downstream and upstream

Investment Where limited funds are available of

capital investment

Lets update equipment with lower investments

Lets plan customer maintenance budget

Reduction of insurance costs

By using new technology

Reduction of fire risk from old oil breakers

Relay on operation performance and lose of production/time

Lower maintenance requirements.

Spare parts availability and delivery time for obsolete products can result in unexpected down time. (DOWN TIME)

Modern breakers features:

Number of operations.

Gas Control interlock.

Modern breaker mechanism are lighter and have longer mechanical life

Offer opportunity of eliminating oil and airblast insulation through use of SF6 or vacuum interrupting technology

Dramatically reduce fire risk. (people & plants) Reduced insurance costs. (people & plants) Increa-

sing making current capacity protects personnel and equipment from unexpected failures.

Modern control circuits supports remote operations. Additional safety standards embedded in modern

breaker increases installation safety(i.e. internal/external interlocks)



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


General DescriptionVD4-LMT Retrofitting

VD4-LMT 12kV Reyrolle LMT Panels

VD4-LMT Vacuum Circuit Breaker and original Reyrolle LMT panel.

Note the VD4-LMT & the HD4-LMT are fully interchangeable


General DescriptionHD4-LMT Retrofitting

HD4-LMT 12kV Reyrolle LMT Breaker

HD4-LMT SF6 Circuit Breaker and original Reyrolle LMT Circuit Breaker.

Note the VD4-LMT & the HD4-LMT are fully interchangeable


General DescriptionLM-AVU Retrofitting

Reyrolle LMT Panel fitted with LM-AVU kit

Reyrolle LMT Panel

LM-AVU Reyrolle LMT Panel Internal arc upgrade kit



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Technical SpecificationVD4-LMT Ratings

50-60[Hz]Rated frequency

95[kV]Rated lightning impulse withstand voltage

28[kV]Rated power frequency withstand voltage

12[kV]Rated insulation voltage

630,1250 & 2000 [A]Rated current

80Up to[kA]Peak current

31.5Up to[kA 3s]Rated short-timewithstand current

12[kV]Rated voltage

Note VD4-LMT 630A, STC Rating is 31.5kA for 1 sec


Technical SpecificationHD4-LMT Ratings





1250 [A]Rated current

80Up to[kA]Peak current


12[kV]Rated voltage


Technical SpecificationLM-AVU Ratings





25kA for 200 msInternal Arc Rating (IEC60298)

1250Up to[A]Rated current


12[kV]Rated voltage


Technical SpecificationVD4-LMT New Schematic Diagram – Circuit breaker Schematic Diagram Based on Standard VD4


Technical SpecificationHD4-LMT New Schematic Diagram – Circuit breaker Schematic Diagram Based on Standard HD4



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Necessary Details for Standard SolutionVD4-LMT/HD4-LMT Retrofit Solution Development

Essential technical data Name plate on the existing breaker with

Serial number Type Rated Current Auxiliary voltage for coils and spring charging motor

Existing Schematic diagram

Data for Clarification of electrical/mechanical interchangeability Internal view of the MV Panel Shutter arrangement Internal view of Secondary contact arrangement View of front door handle View of circuit breaker main earth clip

In case of Generator CB, to be filled the relevant data sheet.


Necessary Details for Standard SolutionPicture of Name Plate

Positioned on the CB front for every breaker type.

Positioned inside the instrument

compartment of the panel


Necessary Details for Standard SolutionExisting Schematic


Necessary Details for Standard SolutionView of MV Panel Shutter Arrangement


Necessary Details for Standard SolutionView of Secondary Isolating Contacts

The self-connecting secondary isolating contacts

View of Secondary contacts in Reyrolle LMT Switchgear

View of Secondary contacts on Reyrolle LMT Circuit Breaker


Necessary Details for Standard SolutionView of Breaker Main Earth & Panel door handle

Useful views to ensure interchangeability

View of Panel door handle View of Breaker Main Earth contact


Necessary Details for Standard SolutionGenerator Breaker Replacement

(file RAN.pl4; x-var t) c:A3 - c:B3 - c:C3 - 0.00 0.02 0.04 0.06 0.08 0.10 0.12[s]

-30

-20

-10

0

10

20

30

[kA]

RANTAMBE : breaking with HD4-HXA delayed 60 ms In order to use a distribution breaker like VD4 correctly, we have to calculate the DC current in case of generator short circuit

Why? The distribution breaker can only open when DC current is going to a reasonable low level where the energy can not destroy the breaker

The opening time might be increased and sometimes capacitors could be requested at generator site

! Please fill out the generator data request list !


Necessary Details for Standard SolutionGenerator Breaker Data sheet

2. Technical data of generator

Rated voltage Ur [kV]

Rated apparent power Sr [MVA]

Rated frequency fr [Hz]

Subtransient direct axis reactance (saturated) Xd‘‘ [%]

Transient direct axis reactance (saturated) Xd‘ [%] Generator Information

Synchronous direct axis reactance (saturated) Xd [%]

Subtransient short-circuit time constant Td‘‘ [ms]

Transient short-circuit time constant Td‘ [ms]

Armature short-circuit time constant Ta [ms]

3. Data of network

Short circuit power of high voltage networkSk’’

[MVA]

Rated power of main transformer Sr [MVA]

Impedance voltage of main transformer Uk [%]

Rated power of auxiliary transformer *) Sr [MVA] Net Information

Impedance voltage of auxiliary transformer *) Uk [%]

Rated power of connected medium voltage motor(s) *) Pr [MW]

Rated motor current related to motor starting current *) Ir/Ia [p.u.]

Single line diagram of network



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Manufacture ProcessBase Breaker Assembling Line

Manufacturing & assembly of :

VD4-LMT , HD4-LMT , Retrofit

Circuit Breakers



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Certification

Type Test Availability Dielectric, up to 28kV Power frequency & 95kV Impulse Short circuit, up to 31.5kA for 3 seconds Temperature rise, up to 2000A Are available on request for both HD4-LMT & VD4-LMT Internal Arc Certification for LM-AVU available up to 25kA for

200ms



Retrofit Concept

General Description



Manufacture Process

Certification

Contact and Support


Service Support and ContactsMedium Voltage Service Contacts for VD4-LMT/HD4-LMT Reyrolle Retrofit Please contact us if you need more information

Export Retrofit Development Manager Fanie Delport

Tel. +27 10 202 6143 Mobile + 27 83 287 8362 Fax +27 11 579 8510 Email: [email protected]

Product Group Manager – MV and HV Service

Egon Worthmann

Tel. +27 10 202 6095 Mobile. +27 83 327 6088 Fax +27 11 579 8462 Email: [email protected]

© abb group november 11, 2015 | slide 1 reyrolle lmt breaker retrofit bu ppmv – pg service...

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