Class Description
Field voltage or current overexcitation limiter designed to protect the generator field of an AC machine with automatic excitation control from overheating due to prolonged overexcitation.
Attributes
| Name | Type | Description |
|---|---|---|
| efd1 | PU | Low voltage or current point on the inverse time characteristic (EFD1). Typical value = 1,1. |
| efd2 | PU | Mid voltage or current point on the inverse time characteristic (EFD2). Typical value = 1,2. |
| efd3 | PU | High voltage or current point on the inverse time characteristic (EFD3). Typical value = 1,5. |
| efddes | PU | Desired field voltage if m = false or desired field current if m = true (EFDDES). Typical value = 1. |
| efdrated | PU | Rated field voltage if m = false or rated field current if m = true (EFDRATED). Typical value = 1,05. |
| kmx | PU | Gain (KMX). Typical value = 0,002. |
| m | Boolean | (m). |
| true = IFD limiting | ||
| false = EFD limiting. | ||
| t1 | Seconds | Time to trip the exciter at the low voltage or current point on the inverse time characteristic (TIME1) (>= 0). Typical value = 120. |
| t2 | Seconds | Time to trip the exciter at the mid voltage or current point on the inverse time characteristic (TIME2) (>= 0). Typical value = 40. |
| t3 | Seconds | Time to trip the exciter at the high voltage or current point on the inverse time characteristic (TIME3) (>= 0). Typical value = 15. |
| vlow | PU | Low voltage limit (VLOW) (> 0). |
Relationships
Inherits from
Descendant classes
- No descendant classes
Leaf/Root class
| IsLeaf | IsRoot |
|---|---|
| False | False |
Associations
None