SU96271A1 - Telemetering device for remote measurement of power flow through the power line - Google Patents

Description

The invention relates to frequency-pulse devices for tele-measurement of the magnitude: on-line measurement and power transfer by power transmission .TUHHjiiM.

The known devices of the same designation, using as the sensors on the transmitting side, reversible electric meters with recirculation: collector type and povvizhio and brushes, rotated by the motor, have a constructive need: tat; com; -simplicity of work of mouth 1. moreover, the use of a synchronous motor controller leads to the dependence of the instrument on the frequency of the network.

In the proposed device, the indicated shortcomings: and are eliminated by replacing two electrical energy meters or measuring: measuring the forward and reverse power flows and a polarized relay with a winding switch on the diagonal of the measuring bridge in such a way that when the flow direction changes power changes the nature of the impulses, b, for which the iriemial device, besides measuring the magnitude, makes it possible to determine the direction of the power flow. The counters are equipped with a braking device that prevents them from reversing.

FIG. 1 shows the principle scheme of the transmitting part of the device; in fig. 2-plots of linear parcels with forward i reverse power flow; on f: ig. 3-principle, the diagram of the device.

The main element of the transmitting part of the device is a linear polarized relay 1 with a neutral adjustment to the co: push 2 and independent windings; working 3 m counteraction 4. The action of the windings on 1 measles relay is mutually opposite. In series with the working winding of the 3 relays / the capacitor Ci is turned on; later, with counteracting the winding 4-resistance. Both relays of the relay 1 are connected with these series-connected elements | Between these pairs | allelic and inclusive in aiago al dsheta. Formation of: Dzuh identical resistances, and deviators of 5 and 5 atschikov of direct and reverse power flows. In any ment, the To.ibKo Sain of two interrupters 5 or 6 works. The working breaker periodically closes and opens its KOHTaiKT; idle breaker is open all the time. The current leveling in the windings of the relay 1, thanks to mp1: the com- mative switching circuit, depends on TOio, as soon as the sensor breakers are operating at this time. When each circuit of the circuit breaks, the power supply circuit of the circuit from the current sources turns on, as a result of which the winding 4 of the relay 1 is installed; sensors working. SH-over repair by working cover 3 relays / a short-term charging pulse of the condenato 5a Ci passes, causing a short-term non-demand:; not installed 1: 1 by this P1) from the winding of the winding, due to the fact that the 1dp impulse is set to 1 | Attorney Ci, but on the working winding of 3 times after / at the moment of opening of the breakers, has a direction opposite to the direction 5L € Niyu.Zarya | the action of P1) from 1 vodietvuyu1, it is winding. So, if at the normal direction of the flow of measles / constant in situ n t –K to the contact contact, it makes short-term brokers; pe.iiC 1 will be permanently pulled to the right contact and will have a short break to the .iCBOAiy contact. S.Secsovenno, in distress from laprele1P-1 pereska monts: you are sending xaipaKrep send (w in the communication channel.

In case of adnOM overflow, in 1ka: short pulses are received, separated by; D, 1 1МММИ pauses; in case of a circular flow, the channel receives long pulses with short pauses and between them.

XapaiKTep line5 nggh, When) azpyh of the neretoka pressure is shown in FIG. 2. The time of parcels is proportional to the magnitude of the overflow of monsters (for example, Pi or P-), and the character of the nodules is determined by the direction of the overflow.

Impulses 1Conscale with the help of an emitting relay 7, from the contacts of which the receiving device works, 1m measure Jn1: ec the amount of power flow according to the number of pulses received over a certain period of time.

The flow re-direction is reproduced by the power of an electromagnetic, light, or some other pointer operating from the non-current direction relay 8. Relay 8-nol. It is designed with two independent windings and neutral adjustment of the contact. The windings 9 and 10 of relay 8 are ground by high-capacity capacitors Cr and, through relay 7, are connected to the same pole of the current source. The second ends of the windings 9 n 10 n relays 8 are connected through resistance to the other pole of the power source. Each relay coil 8 with a bypass capacitor C2 and resistance forms an independent system, providing slow-down and slow-release operation.

The magnetic fields of windings 9 and 10 of relay 8 are directed to the other side. Therefore, at different closing times of the right and left contacts of the relay 7, the relay 8 will be stronger than WHO (The winding that is connected to the longer contact of relay 7 will act. As a result, the relay 8 will switch to the right direction of this field. l will find it in this position 1and until the nature of the post-helix pulses changes.

Since the nature of the incoming / impedance is determined by the direction of the power flow at the transmitting side, the position of the contact of relay 8 depends on the direction in which the power flows. This allows the use of a cV relay to control the flow direction indicators.

If the described device is used to telemetry the magnitude and determine the flow pattern, it is unnecessary to send neretote wave signals to the control panels using the remote signaling settings, which is important for those modes of operation when the flow direction often changes close to zero), since this setting of the telegnalization will be accompanied by: give continuous starts.

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Telemetering device for distant measurement of power flow. Power transmission LINE using two electric energy meters for direct and reverse non-current with interrupters; and braking device. But the opposite is true for them, but about the same. what; In order to change the nature of the pulses depending on the direction of the neretoka, a polarized relay with a winding connected afterwards with a capacitor amperes / wire and connected to the bridge of the bridge formed from two identical OMChAhs is applied :. - and interrupters such that, with one direction of the non-current, long imiuls and short pauses are transmitted, and with: Other-short1: e pulses ii long pauses, so on the npiieMHoft side. the amount of money, the value of money, and also the separation of the direction of flow of feline.

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