ABB Accuray Bulk DC Power Supply Module 086362-001

Direct Fiber Optic Module Manufacturers ABB, Bailey Model(s)

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

Additional Information Expander Bus Interconnect Cable for IEMMU01 and IEMMU02 Module Mounting Units

Estimated Shipping Size Dimensions: 2.0" x 11.0" x 6.0" (5.1 cm x 27.9 cm x 15.2 cm)

Weight: 0 lbs 6.1 oz (0.2kg )

Tariff Code: 8471410150

Country of Origin: United States Ships from Webster NY, USA

Bulk DC 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