ABB PHARPS03000000 Power Supply Module

Power Supply Module Manufacturers ABB, Bailey Model(s)

ABB Bailey Infi 90, ABB Bailey Infi 90 and Net 90

Additional Information Modular Power System III (MPS III) 24V @ 17A, 24V @ 17A

Estimated Shipping Size Dimensions: 9.0" x 4.0" x 18.0" (22.9 cm x 10.2 cm x 45.7 cm)

Weight: 10 lbs 0.0 oz (4.5kg ) Power Supply Module

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible

Below is a side internal view of the EL mechanism and the associated anti-pumping component. 

When the opening pushbutton or coils are activated the opening shaft lever pushes down on point C of the anti-pump device.

This causes the device to side down slot D in direction of arrow B. 

Then the trigger portion A moves out from between the closing push-button and the closing shaft lever. 

So if the closing button or signal is held active and the opening button or signal is then activated.

The trigger A will pull out from between closing shaft lever and the closing push button. 

Once the open signal is released the trigger A will come to rest under the closing push-button and will 

not return between the closing shaft lever and closing push-button until the button or closing command is released.

The closing push button is operated by the closing coil (MC) directly by the shaft closing device.

This allows the anti-pumping device to prohibit closing by manual or electrical means.

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