Construction

Automatic module MSR consists of automatics apparatures system, into the composition of which they enter: transmitters of the inspection of phases, transmitters and protections, of control circuits – switches Used measuring- transmitters perform the supervision over the value maximum and minimum sheatfishes of measured of three phasic tensions and over the suitable order of phases. Besides signal separately the speaking error about the shortage or the offence and about the enclosure of the executive transmitter. To connecting of the basic power supply serve clamps 1, 2, 3, N, and for reserve- 4, 5, 6, N. At correct parameters of the tension MSR gives the tension on clamps A1, A2. When the sum of three phasic tensions crosses the threshold Umax (not regulated) or the tension in one from phases will come down the below disposed threshold Umin. (calibrated for the decrease of the asymmetric tension in one phase) and AC dump in one from phases – will follow the automatic switch on the reserve (clamps B1, B2) power supply. The temporary delay toz can be placed by the user to 15 seconds (the time of the return tp-K4). The automatic switch of the system to the start state succeeds to the return of the basic tension to the disposed value with the potentiometer ,,the asymmetry” on the transmitter K1 of enlarged for the value of the hysteresis. The temporary delay sink is a sum of times of the return of the transmitter K1 (to 15 seconds) and the time of getting down to work of the transmitter K4 (to 15 seconds).

Aplication
Automatics modules MSR find application in the industrial power engineering and are use d for eliminating electrical power supply interruptions. They can work in the configuration of the overt reserve and in conjunction with PSA mains switches they form an automatic switching device, fulfilling requirements of PN-EN 60947-6-1 standard. The MSR module can be installed to operate in various climate conditions, at sites located up to 2000 m above sea level. It shall be installed indoors, in arbitrary operating position and on su-pporting structures, which are not exposed to excessive vibrations and shocks.

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Technical data

Type				MSR-2	MSR-3
Rated insulation voltage		Ui	[V]	250
Birth-mark measuring (the line-value)		Un	[V]	400
Rated frequency			[Hz]	50
Hysteresis	the symmethrical height	Umax		1,2 % Un
	the symmethrical decrease	Umin		1,2 % Un
	the decrease into 1 to the phase	Umin		1,7 % Un
Rated control voltage		Us	[V]	230
The margin of control tension				0,7÷Us
Admissible AC dumps of control				<0,3 s co 1 s
Rated power consumption			[VA]	11
Actuation voltage	setting Umax=115%Un (not rgulated, the symmethrical height into 3 phases)		[V]	460
	setting Umin=-15%-r-0% Un (calibrated for the asymmethric decrease in one phase, what answers -30% values of the psychic tension and -10% to the symmethrical decrease)	Uzf	[V]	161
Minimum actuation voltage after emergency disconnection		Upf	[V]	168*)
Adjusted operating time	Actuation delay toz=(the time of the return /tp K4/)		[s]	0,5÷15
	the delay of return to the top top=(the time of the return /tp Kl/ + the time of getting down to work /tz K4/)			0,65÷30
Working temperature			ºC	-25÷55
Lasting current-carrying capacity			[A]	6
Protection degree				IP20
Dimensions	width		[mm	220	368
	height			250	140
	depth			130	116
Weight			[kg]	2,1	1,85
Item No.				607-T01001	607-T02001

*) in the dependence from the disposed asymmetry enlarged for the value of the hysteresis.