Title:
MEDIUM-VOLTAGE SWITCHGEAR SYSTEM HAVING SINGLE PHASE BREAKER CONTROL
Document Type and Number:
WIPO Patent Application WO/2022/178965
Kind Code:
A1
Abstract:
A medium-voltage switchgear system and a method for operating the medium-voltage switchgear system, the medium-voltage switchgear system includes a three-phase circuit breaker having first, second and third single-phase vacuum interrupters connected between respective first, second and third single-phase inputs and first, second and third single-phase outputs. Magnetic actuators are connected to first, second and third single-phase vacuum interrupters, which are configured to receive an interrupt signal and in response, actuate the respective vacuum interrupter connected thereto into an open circuit condition. A controller circuit is connected to each of the first, second and third magnetic actuators and generates an interrupt signal in response to a detected single-phase overcurrent or fault on a single-phase circuit and interrupt that single-phase circuit on which the single-phase overcurrent or fault occurred and maintain power on the remaining two single-phase circuits over which a single-phase overcurrent or fault was not detected.
Inventors:
LIANG HAONING (CN)
HANNA ROBERT L (US)
FISCHER-CARNE PATRICK R (US)
DAVIS DANIEL C (US)
ALVELO GUILLERMO (US)
PAWAR RAHUL M (US)
HANNA ROBERT L (US)
FISCHER-CARNE PATRICK R (US)
DAVIS DANIEL C (US)
ALVELO GUILLERMO (US)
PAWAR RAHUL M (US)
Application Number:
PCT/CN2021/089905
Publication Date:
September 01, 2022
Filing Date:
April 26, 2021
Export Citation:
Assignee:
JST POWER EQUIPMENT INC (US)
LIANG HAONING HENRY (CN)
LIANG HAONING HENRY (CN)
International Classes:
H02B11/18; H02B11/00
Foreign References:
| CN101320891A | 2008-12-10 | |||
| CN201956260U | 2011-08-31 | |||
| CN201629566U | 2010-11-10 | |||
| US5019937A | 1991-05-28 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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