Phase Sequence Relay Siemens

One version with four current transformer inputs for non directional earth ground fault detection and a second ver sion with three current inputs 2 phase 1 earth ground and one.

Phase sequence relay siemens.

The phase control relay monitors phase sequence phase failure of one of the three phases and undershoot of at least one line to line voltage of the set nominal line voltage by 20 in a three phase system. The 3ug4513 1br20 from siemens is a phase monitoring relay. Shop online for siemens switchgear 3 phase monitoring relay 160 to 690v 2co under voltage relay ip20 phase sequence phase failure phase imbalance 3ug46151cr20. 3ug4512 1ar20 phase failure and sequence analog monitoring relay phase failure and sequence 3 x 160 690 v 50 60 hz ac 1 change over contact screw terminal.

3ug4513 1br20 phase failure and sequence analog monitoring relay phase failure and sequence adjustable undervoltage asymmetry 20 fixed 3 x 160 to 690 v 50 to 60 hz ac hysteresis 5 fixed delay time 0 20 s 2 change over contacts screw terminal successor product for 3ug3013 1b. Negative phase sequence overcurrent 46nps thermal overload 49 overcurrent 50 51 earth fault 50g 50n 50sef 51g 51n 51sef directional control of overcurrent earth fault 67 high impedance ref 64h under over voltage 27 59 negative phase sequence voltage 47 voltage controlled overcurrent 51v neutral voltage displacement 59n. Monitoring of electrical parameters viz. Authentic product best prices technical support.

Sequence protection for a very comprehensive relay package. Negative phase sequence overcurrent 46nps thermal overload 49 overcurrent 50 51 earth fault 50g 50n 51g 51n neutral voltage displacement 59n high impedance ref 64h biased differential 87bd high set differential 87hs supervision functions. Phase sequence phase imbalance phase failure protection from under over current voltage and unbalance assymetry lcd display for 35mm width product. For applications with ground current detection two versions are available.

Circuit breaker fail 50bf trip circuit supervision 74tc inrush detector 81hbl2.