Circuit breaker protection settings are shown in table 1 Type of Stripper Type Overload longdelay settingcurrent(IR) Overload longdelay (6·IN)Fix buckletime Short-circuitshorter delaytuning current(ISD) Short-circuitshorter delaysetting time(TSD) Short-circuittransienttuning current(Ii) GroundingProtectionsetting current(IG) GroundingProtectionsetting time(TG) MA:Single magnetic YCM3MA-100 YCM3MA-160 YCM3MA-250 YCM3MA-400 YCM3MA-630 / / / / 12In / / T/A:Overload adjustable YCM3T/A...

JDZ3-3,6,10(Q) type single-phase double coil voltage transformer of epoxy casting insulation for indoor device use, is used for measurement of voltage and electric energy, relay protection in the AC circuit of rated frequency 50Hz as well as other control device power. (refer to figure 1 wiring diagram) JDZ(J)-3,6,10(Q) type single-phase double coil voltage transformer of epoxy casting insulation for indoor device use, is used for measurement of voltage and electric energy, relay protection i...

Operating conditions 1. The ambient air temperatures is no higher than +40℃,no lower than -40℃ ; 2. The altitude above sea level dose not exceed 1000-2000m(the plateau ares should be indicated when ordering); 3. AC systen frequency is 50Hz or 60Hz; 4. The power frequency voltage applied to the arrester for a long time does not exceed the continuous working voltage of the arrester; 5. Maximum wind speed does not exceed 35m/s; 6. The earthquake intensity does not exceed 7 degrees; 7. The filthy...

Type Test curren Tripping time Expected result Type Test current Tripping time Expected result B,C,D 1.13In t≤1h(In≤63A) Not tripping B 3In t≤0.1s Not tripping 1.13In t≤2h(In>63A) C 5ln t≤0.1s B,C,D 1.45In t<1h(In≤63A) Tripping D 10ln t≤0.1s 1.45ln t<2h(In>63A) B 5ln t<0.1s Tripping B,C,D 2.55In 1s<t<60s(In≤32A) Tripping C 10ln t<0.1s 2.55ln 1s<t<120s(In>32A) D 20ln t<0.1...

YCB9-63R series 15KA Miniature Circuit Breaker Instruction 1.General YCB9-63R Series Miniature circuit breaker is applicable to protecting from overload and short circuit in the circuit of AC 50/ 60Hz, Rated voltage 230/400V rated current 63A,it also can be used in switch the infrequent operation of the circuit under normal conditions. It’s mainly used in industry, commerce, high-rise buildings and residential houses and so on. Standard: IEC 60898-1   2.Operating conditions 2.1 Circumst...

General YCM1 series moulded case circuit breaker(herein after called circuit breaker) adopts international advanced design and manufactural technology, it can be divided into L-type (standard type), M-type (higher type)according to the rated ultimate short circuit breaking capacity (Icu). With the features of small and compact, high breaking capacity, short arcing-over distance, anti-vibration, the circuit breaker is used popularly on land and marine products, which are applied for the power...