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WHIPP & BOURNE

DV40/53

We have designed a Vacuum Retrofit (RET VAC-HVX) for the DV40 Whipp & Bourne Circuit Breaker.

The retrofit consists of installing a Schneider HVX within the existing Whipp & Bourne carriage.

All main interlocks have been retained in the modification to prevent the retrofit being installed or removed from the switchboard whilst in the closed position. By carrying out the retrofit in this way it alleviates the necessity to modify the main switchboard busbars etc. This method, in our opinion is by far the most cost effective solution for upgrading the switchboard on site to guarantee future support and reliability for many years to come.

As part of the Retrofit package, customer’s drawings are updated on CAD to contemporary standards producing standard drawings for each circuit type.

Technical Data Vacuum Contactor Type HVX

Standard : IEC 62271-100/2001 IEC 60056/1987
Rated Insulation Level : 75kV
Rated Operational Voltages : 12kV



Rated Service Current : 2000A/3150A
Rated Frequency : 50Hz
Short Circuit Breaking Capacity : 50Ka



Short Circuit Withstand Capacity : 50Ka / 3sec

IF2

In recognising our customers needs to support old and obsolete circuit breakers on site, have designed a (RET IF2-AR212S) for the 415V IF2 Whipp & Bourne circuit breaker.

The retrofit consists of installing a Terasaki AR212S ACB within the existing Whipp & Bourne carriage.

The existing switchboard protection can be retained by using a Non-Automatic type ACB or a new Programmable protection relay can be incorporated with to the ACB.

All main interlocks have been retained in the modification to prevent the retrofit being installed or removed from the switchboard whilst in the closed position. By carrying out the retrofit in this way it alleviates the necessity to modify the existing switchboard busbars etc. This method, in our opinion is by far the most cost effective solution for upgrading the switchboard on site. it also guarantees future support and reliability for many years to come.

As part of the Retrofit package, customer’s drawings are updated on CAD to contemporary standards producing standard drawings for each circuit type.

Technical Data For ACB Type AR212S

Rated Current : 1250A

Breaking Capacity :
690V Symmetrical rms : 50kA
440V Symmetrical rms : 65kA
415V Symmetrical rms : 65kA

Making Capacity :
690V Asymmetrical Peak : 105kA
440V Asymmetrical Peak : 143kA
415V Asymmetrical Peak : 143kA
Short-Time Withstand : 65kA/1 Sec rms / 50kA/3 Sec rms



Endurance :
Mechanical (with maint) : 30000
Mechanical (no maint) : 15000
Electrical (no maint AC 460V) : 12000
Electrical (no maint AC 690V) : 10000

Time :
Breaking Time : 0.03 Sec Maximum
Spring Charging Time : 10 Sec Maximum
Closing Time : 0.08 Sec Maximum

IF6

In recognising our customers needs to support old and obsolete circuit breakers on site, have designed a (RET IF6-NW) for the 415V IF6 Whipp & Bourne circuit breaker.

The retrofit consists of installing a Merlin Gerin NW ACB within the existing Whipp & Bourne carriage.

The existing switchboard protection can be retained by using a Non-Automatic type ACB or a new Micrologic Programmable protection relay can be incorporated with to the ACB.

All main interlocks have been retained in the modification to prevent the retrofit being installed or removed from the switchboard whilst in the closed position. By carrying out the retrofit in this way it alleviates the necessity to modify the existing switchboard busbars etc. This method, in our opinion is by far the most cost effective solution for upgrading the switchboard on site. it also guarantees future support and reliability for many years to come.

As part of the Retrofit package, customer’s drawings are updated on CAD to contemporary standards producing standard drawings for each circuit type.

Technical Data For ACB Type NW

Rated Insulation Voltage Ui : 1000V
Rated Withstand Voltage Uimp : 12KV
Rated Operational Voltage Ue : 690V 50/60Hz
Degree Of Pollution : IEC 60664-1 4
Current Ratings : 1250 to 2000A
Complying To Standard : BSEN 60947-2
(Circuit Breaker)



Ultimate Breaking Capacity Icu : 65KA rms
Service Breaking Capacity Ics : 65KA rms
Rated Short Time Withstand Icw : Rated Making Capacity Icm : 143KA Peak

Complying To Standard : BSEN 60947-3
(Switch - Disconnector)



Rated Making Capacity Icm : 105KA Peak
Rated Short Time Withstand Icw : 50 / 1 sec rms

IFA

In recognising our customers needs to support old and obsolete circuit breakers on site, have designed a (RET IFA-NW) for the 415V IFA Whipp & Bourne circuit breaker.

The retrofit consists of installing a Merlin Gerin NW ACB within the existing Whipp & Bourne carriage.

The existing switchboard protection can be retained by using a Non-Automatic type ACB or a new Micrologic Programmable protection relay which can be incorporated with the ACB.

All main interlocks have been retained in the modification to prevent the retrofit being installed or removed from the switchboard whilst in the closed position. By carrying out the retrofit in this way it alleviates the necessity to modify the existing switchboard busbars etc. This method, in our opinion is by far the most cost effective solution for upgrading the switchboard on site. it also guarantees future support and reliability for many years to come.

As part of the Retrofit package, customer’s drawings are updated on CAD to contemporary standards producing standard drawings for each circuit type.

Technical Data For ACB Type NW

Rated Insulation Voltage Ui : 1000V
Rated Withstand Voltage Uimp : 12KV
Rated Operational Voltage Ue : 690V 50/60Hz
Degree Of Pollution : IEC 60664-1 4
Current Ratings : 800 to 3200A
Complying To Standard : BSEN 60947-2
(Circuit Breaker)



Ultimate Breaking Capacity Icu : 65KA rms
Service Breaking Capacity Ics : 65KA rms
Rated Short Time Withstand Icw : 65KA / 1 sec rms
Rated Making Capacity Icm : 143KA Peak

Complying To Standard : BSEN 60947-3
(Switch - Disconnector)



Rated Making Capacity Icm : 105-187KA Peak
Rated Short Time : 50/85KA / 1 sec rms
Withstand Icw : 36/75KA / 3 sec rms

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