GB1251942A - - Google Patents
Info
- Publication number
- GB1251942A GB1251942A GB1251942DA GB1251942A GB 1251942 A GB1251942 A GB 1251942A GB 1251942D A GB1251942D A GB 1251942DA GB 1251942 A GB1251942 A GB 1251942A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breaker
- source
- current
- resistor
- capacitor
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Keying Circuit Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
1,251,942. Circuit breaker tests. SIEMENS A.G. Jan.20, 1970 [Jan. 21, 1969], No. 2816/70. Heading G1U. In a synthetic test circuit for testing a circuit breaker 5 of the type having a parallel switching resistor 18 of low value in which the outputs of a high current source 1 and a high voltage source 9 are applied in succession to the breaker, the resistor 18 is shifted to a position 18<SP>1</SP> in which it ceases to shunt the output from the high voltage source. When current from the supply source 1 drops to zero after opening auxiliary switch 4 and the circuit breaker 5, a restriking voltage is applied from the current supply source 1 via capacitor 15 to the breaker. In addition, at this time, spark gap 11 is fired so that a high voltage stored in capacitor 10 is applied to the breaker to increase the restriking voltage. In its position 18<SP>1</SP> the resistor is in shunt only with the supply from the current source. Capacitor 6 ensures that the restriking voltage rises at a suitable rate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691903412 DE1903412A1 (en) | 1969-01-21 | 1969-01-21 | Synthetic check circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1251942A true GB1251942A (en) | 1971-11-03 |
Family
ID=5723243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1251942D Expired GB1251942A (en) | 1969-01-21 | 1970-01-20 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS502066B1 (en) |
| CH (1) | CH505392A (en) |
| DE (1) | DE1903412A1 (en) |
| FR (1) | FR2028808A1 (en) |
| GB (1) | GB1251942A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526473A (en) * | 2016-11-24 | 2017-03-22 | 华中科技大学 | Mechanical type high-voltage DC breaker on-off equivalent test loop and method |
-
1969
- 1969-01-21 DE DE19691903412 patent/DE1903412A1/en active Pending
- 1969-12-18 CH CH1880569A patent/CH505392A/en not_active IP Right Cessation
-
1970
- 1970-01-20 GB GB1251942D patent/GB1251942A/en not_active Expired
- 1970-01-20 FR FR7001997A patent/FR2028808A1/fr not_active Withdrawn
- 1970-01-21 JP JP560870A patent/JPS502066B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526473A (en) * | 2016-11-24 | 2017-03-22 | 华中科技大学 | Mechanical type high-voltage DC breaker on-off equivalent test loop and method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1903412A1 (en) | 1970-08-06 |
| CH505392A (en) | 1971-03-31 |
| FR2028808A1 (en) | 1970-10-16 |
| JPS502066B1 (en) | 1975-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |