| 摘要 |
FIELD: electrical engineering, low-voltage apparatuses; electrothermal relays. ^ SUBSTANCE: proposed test lever is essentially rod of auxiliary-circuit thermocouple in electrothermal current relay, type RTT5K-16. Device is disposed in relay case and has lever and manual-reset push-button slider, both mounted so that in original state thermocouple rod engages lever coupled with slider. Thermocouple rod is elongated and brought out beyond relay case. For sake of convenience rod end is reinforced with contrast-color polypropylene. ^ EFFECT: ability of testing electrothermal current relays, facilitated operation and maintenance. ^ 2 cl, 5 dwg |
