ABB Automation Inc.Substation Automation and Protection Division Coral Springs, FL 33065

Instruction Leaflet

��� 41-331.21

Effective: May 1980

NEW INFORMATION

All possible contingencies which may aridetails and variations of this equipment doinformation is desired by purchaser regarof this equipment, the local ABB Power T&

Printed in U.S.A.

CAUTION!Before putting relays into service, removblocking which may have been inserted fopurpose of securing the parts during shipmmake sure that all moving parts operate frinspect the contacts to see that they are cand close properly, and operate the relacheck the setting and electrical connection

Type CA Percentage Differential Relay for Generator Protection For Class 1E Applications

se during installation, operation or maintenance, and all not purport to be covered by these instructions. If further

ding this particular installation, operation or maintenanceD Company Inc. representative should be contacted.

e allr theent,

eely,leany to

41-331.21 Type CA Percentage Differential Relay For Generator ProtectionFor Class 1E applications

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Type CA Percentage Differential Relay For Generator Protection 41-331.21Class 1E applications

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41-331.21 Type CA Percentage Differential Relay For Generator ProtectionFor Class 1E applications

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Type CA Percentage Differential Relay For Generator Protection 41-331.21Class 1E applications

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41-331.21 Type CA Percentage Differential Relay For Generator ProtectionFor Class 1E applications

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Type CA Percentage Differential Relay For Generator Protection 41-331.21Class 1E applications

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41-331.21 Type CA Percentage Differential Relay For Generator ProtectionFor Class 1E applications

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Type CA Percentage Differential Relay For Generator Protection 41-331.21Class 1E applications

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41-331.21 Type CA Percentage Differential Relay For Generator ProtectionFor Class 1E applications

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Reserved for Notes

Type CA Percentage Differential Relay For Generator Protection 41-331.21Class 1E applications

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Reserved for Notes

Printed in U.S.A.

ABB Automation Inc.4300 Coral Ridge Drive

Coral Springs Florida 33065

TEL: 954-752-6700

FAX: 954-345-5329

41-331.21 Type CA Percentage Differential Relay for Generator ProtectionFor Class 1E applications

visit our website at www.abbus.com/papd

3519A66

Fig. 14. Outline and drilling for the type CA Generator relay in the type FT21 Case.