HSR296 Mechanical Protection & Three-phase Operation Box
Application Scope
HSR296 mechanical protection & three-phase operation box is applicabled to mechanican protection of electric transforemer which is mainly voltage protection of 35KV and below and CB control of ring handling mechanism and electromagnetic operating mechanism the two compose one device.The device adopting embedded structure can be installed in switchgear dispersedly, it can also be installed in cabinet in group. The prnciple, wiring and performance is good, reasonable and reliable.
Function Configuration
HSR296 three-phase operation box working principle:
HSR294 mechanical protection principle:the device contains 3 non-electricity trip and 6 non-elelctricity alarm.
When any of non-electricity triping contacts is closed, the device drive 4-group tripping contacts, 1-group tripping signal contact and 1-group central signal contact. Central signal and trip signal can be returned only when reset signal is inputted.
When any of non-electricity alarm contacts is closed, the device drive 1-group alarm contacts, 1-group tripping signal contact and 1-group central signal contact. Central signal and trip signal can be returned only when reset signal is inputted.
HSR296 three-phase operation box is equipped with functions of controlling CB open/close, CB not ready block close and SF6 error block trip and close. This plug-in consists of kinds of relays, including tripping-position relay(TWJ), close-position relay(HWJ), manual trip relay STJ, spring unstored energy block relay BSJ3, SF6 gas low pressure block relay BSJ1, tripping-hold relay TBJ, close-hold relay HBJ etc. The holding current of tripping and close adopts self-adaption methods, the range: 0.5A ~ 4A, this kind of circuit can avoid trouble of exchanging relays when the parameters of tripping or close change.
Nanjing Hosen Science and technology Co.,Ltd. was founded on October 20, 2003. It is located in the beautiful scenery of Jiangning Economic Development Zone in the ancient city of Nanjing. The company focuses on the research and development, production, operation and sales services of intelligent power grids, power system automation and relay protection products. It has been deeply engaged in the manufacturing of relay protection equipment, and with professional strength, has firmly established the foundation of the industry.
Address：No. 601, Building 10, Ji Yin Avenue 3118, Muling Sub-district, Jiangning District, Nanjing City, Jiangsu Province Telephone：025-84645390 Email：3100417487@qq.com