GB1221291A - Improvements relating to the synthetic testing of circuit-breakers - Google Patents
Improvements relating to the synthetic testing of circuit-breakersInfo
- Publication number
- GB1221291A GB1221291A GB5281766A GB5281766A GB1221291A GB 1221291 A GB1221291 A GB 1221291A GB 5281766 A GB5281766 A GB 5281766A GB 5281766 A GB5281766 A GB 5281766A GB 1221291 A GB1221291 A GB 1221291A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit breaker
- capacitor
- circuit
- breakers
- test
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/333—Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage
- G01R31/3333—Apparatus, systems or circuits therefor
- G01R31/3336—Synthetic testing, i.e. with separate current and voltage generators simulating distance fault conditions
Abstract
1,221,291. Testing circuit breakers. A. REYROLLE & CO. Ltd. Feb.7, 1968 [Nov.25, 1966], No.52817/66. Heading G1U. A circuit for testing the capacitor switching performance of a circuit breaker T comprises an A.C. power source S, an inductance L and an auxiliary circuit breaker A connected in series across the circuit breaker under test, and a capacitor C and resistor R connected in series across either the auxiliary circuit breaker, as shown, or the test circuit breaker, the arrangement being such that the circuit breakers are opened just before a natural current mva and the capacitor is caused to supply a D.C. current to the circuit breaker to which it is connected after opening of the circuit breakers but before current interruption. When the capacitor C is connected across the test circuit breaker a resistance Rg, Fig.4 (not shown) is connected across the auxiliary circuit breaker so as to provide afraction of the A.C. source voltage at the terminals of the test circuit breaker after current interruption. The capacitor C is initially charged to a voltage higher than the peak voltage of the A.C. power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5281766A GB1221291A (en) | 1966-11-25 | 1966-11-25 | Improvements relating to the synthetic testing of circuit-breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5281766A GB1221291A (en) | 1966-11-25 | 1966-11-25 | Improvements relating to the synthetic testing of circuit-breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1221291A true GB1221291A (en) | 1971-02-03 |
Family
ID=10465426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5281766A Expired GB1221291A (en) | 1966-11-25 | 1966-11-25 | Improvements relating to the synthetic testing of circuit-breakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1221291A (en) |
-
1966
- 1966-11-25 GB GB5281766A patent/GB1221291A/en not_active Expired
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