DE238473C - - Google Patents
Info
- Publication number
- DE238473C DE238473C DENDAT238473D DE238473DA DE238473C DE 238473 C DE238473 C DE 238473C DE NDAT238473 D DENDAT238473 D DE NDAT238473D DE 238473D A DE238473D A DE 238473DA DE 238473 C DE238473 C DE 238473C
- Authority
- DE
- Germany
- Prior art keywords
- current
- voltage
- phase
- coils
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000010363 phase shift Effects 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/18—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by abnormal product of, or abnormal phase angle between, voltage and current, e.g. directional relay
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE238473C true DE238473C (forum.php) |
Family
ID=497994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT238473D Active DE238473C (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE238473C (forum.php) |
-
0
- DE DENDAT238473D patent/DE238473C/de active Active
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