SU1322155A1 - Indicator of excessive consumption of electric power - Google Patents

Abstract

The signaling device (C) of electrical energy overruns contains the primary information sensor 1, electronic key 2, divider 3 frequencies, reversible counter 4, unit (B) 5 for inputting the consumption rate, B 6 for information, consisting of light indicator 7 for overrun, decoder 8 and digital indicator 9, power supply B 10, backup power source 11, switch 12 Operation, button 13 Installation O, trigger 14. The invention expands the functionality of C. 1 Il.

Description

The invention relates to electrical measuring equipment and can be used in industrial plants or in certain parts of it to monitor electrical overspeed.

The purpose of the invention is the expansion of functional capabilities.

The drawing shows the scheme of the proposed detector,

The indicator contains a primary information sensor 1 (PDI), an electronic switch 2, a divider 3 f / n frequencies, a reversible counter 4, a flow rate input block 5, a block 6 of information consisting of an overrun indicator light 7, a decoder, and digital indicator 9, block 10

power supply, reserve power supply 11 (RIP), switch 12 Operation, button 13 Setting O, trigger 14.

The input of PDI 1 is supplied with voltage and current i from measuring voltage and current transformers, and its output is connected to the second input of an electric switch 2, the first input of which is connected to the 1-input of trigger 14 and through the switch 12. to which RIP 11 is connected and through button 13 Installation O the first input of the reversible counter 4, the second input of which through the 3 frequency separator f / n is connected to the output of the electronic switch 2, the Third and fourth inputs of the reversing counter 4 are connected respectively to the forward and inverse codes the rigger 14, To-the input of which is connected to the first output of the reversible counter 4 and to the output of the CIP 7 block 6 information output. The second input of the reversible counter 4 is connected via the decoder 8 to the digital indicator 9, and the nth input - to the norm input unit 5. expense.

The detector works as follows.

The indicator is connected to the input terminals 15 of the voltage and 16 currents of the primary sensor information, and to the measuring transformers of voltage and current. By pressing the button 13, the O setting of the detector is reset. With the help of the consumption rate input unit 5, the number corresponding to the consumption rate of the electrical and energy sector is accumulated for the required period of time, for example, a week or

ABOUT

five

0

five

0

months c. This binary code number fills the reversible counter 4 and is displayed on the digital indicator 9. Thus, the detector is ready for operation.

To start the detector, it is necessary to turn on switch 12 Operation. In this case, a signal is fed to the input of the electronic key 2 and to the 1-input of the trigger 14. The electronic key, when opened, passes the normalized pulses from the PDI 1 to the divider 3 of the f / n frequency, where their energy weight increases

kw. h

Impulses with divider clock pulse

The tots are fed to the input of the reversible counter 4.

Since the direct output of flip-flop 14 with a signal applied to I-input is logic 1, it starts the counter in the Subtraction mode. With the arrival of each normalized pulse from the divider 3 frequency f / n to the counter input, the value of the recorded number in it decreases by one. When a unit remains in the counter, with the arrival of a pulse, it is set to the zero state and gives a signal in the form of a logical 1 to turn on the overrun indicator light. The inclusion of indicator 7 indicates that consumers are using the established rate of power consumption. The signal about the zero state of the counter simultaneously arrives at the K-input of the trigger 14, which ensures the appearance of a logical 1 on the inverse output of the trigger 14. This signal switches the operation of the reverse

0 counter from the Subtraction mode to Summation mode.

Claims (1)

As the electronic key 2 remains open, the normalized pulses continue to flow to the input of the reversing counter. The latter, working now in the Summation mode, takes into account the amount of overspent energy, the value of which is monitored by the digital indicator 9. In the event of a mains voltage disappearing to store information, the signaling device is powered from RIS 11. The formula of the invention Electricity overrun detector, containing a primary information sensor, a block of information and a trigger that distinguishes 0 five so that, in order to expand the functionality, an electronic key, a frequency divider, a reversible counter, an input unit for the consumption rate, an Operation switch, an O button, a backup power source and a power supply unit whose input is connected are entered into it. a backup power source, and an output through a switch. The operation is connected to the 1st input of the trigger and the first input of the electronic key, and through the Set O button - to the First input of the reversible counter, the second clock of which is connected to the output of the frequency divider, subtracting and sums ruyuschy inputs of down counter podklyuche- tee «« «« «vtstvenno to forward and yn The upstream outputs of the trigger, the K-input of which is connected to the first output of the reversible counter and the input of the overrun indicator of the overrun of the information output unit, the second output of the reversible counter connected to the decoder, the output of which is connected to the digital indicator of the information block, the fifth input of the reversible counter to the output ;; at the input unit of the rate of flow, the inputs of the primary information sensor are the inputs of the detector and connected to the voltage and current terminals of the monitored network, and the output is connected to the second progress of the electronic key, whose output is connected to the input of the frequency divider.