Statements (52)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Electrical Instrument Transformer
|
| gptkbp:accuracy_class |
Defined by IEC and ANSI standards
|
| gptkbp:can_be_damaged_by |
Open-circuiting secondary winding
|
| gptkbp:connects |
gptkb:Relay
Measuring instruments Ammeter Protection devices |
| https://www.w3.org/2000/01/rdf-schema#label |
Current Transformer
|
| gptkbp:insulation_class |
Depends on application
|
| gptkbp:inventedBy |
Late 19th century
|
| gptkbp:manufacturer |
gptkb:General_Electric
gptkb:ABB gptkb:Schneider_Electric gptkb:Siemens |
| gptkbp:operates |
Electromagnetic induction
|
| gptkbp:output |
Proportional current
Reduced current |
| gptkbp:primary_current_range |
From a few amperes to thousands of amperes
|
| gptkbp:primary_winding |
Few turns or single turn
|
| gptkbp:relatedTo |
Bushing CT
Clamp meter Current sensor Instrument Transformer Potential Transformer Split-core CT Zero-sequence CT |
| gptkbp:safety_note |
Secondary should never be open-circuited when energized
|
| gptkbp:secondary_current_range |
Typically 1A or 5A
|
| gptkbp:secondary_winding |
Many turns
|
| gptkbp:standard_ratio |
1A secondary current
5A secondary current |
| gptkbp:standardizedBy |
IEC 60044-1
IEC 61869-2 IEEE C57.13 |
| gptkbp:type |
Bar type
Window type Wound type |
| gptkbp:used_in |
Commercial buildings
Power systems Industrial plants Distribution networks Substations Transmission networks |
| gptkbp:usedFor |
Control
Monitoring Energy management Metering Fault detection Measuring alternating current Protective relaying |
| gptkbp:bfsParent |
gptkb:Current_Transformer_Loop
|
| gptkbp:bfsLayer |
7
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