CN203337767U - CT Polarity Detector - Google Patents

Abstract

The utility model relates to a CT polarity detector, which is characterized in that it comprises a pulse current generating system and a polarity display system, the pulse current generating system is used for electrical connection with a primary side, and the polarity display system is used for connecting with a secondary side electrical connections on the secondary side. The utility model has beneficial effects: 1. Avoid using a milliampere DC ammeter, and integrate each component into two systems (pulse current generation system and polarity display system), which improves integration, is convenient to carry, and avoids wiring errors, The requirements for field test conditions are also reduced. 2. When testing, it can be done by one person alone, which improves work efficiency and work reliability. 3. The polarity display system uses light-emitting diodes to display the light-emitting sequence, which is intuitive and accurate to judge, and avoids being affected by distance. 4. The switch device is a remote control device, which is convenient for operation and remote control, and avoids problems caused by long-distance manual communication.

Description

CT Polarity Detector

technical field

The utility model relates to a CT polarity detector. the

Background technique

At present, when measuring the polarity of CT, mA DC ammeters, dry batteries and connecting wires are needed. The problems of these scattered devices: 1. The mA DC ammeters, dry batteries and connecting wires are scattered, the integration level is low, and the mA DC The size of the ammeter is large, which makes it inconvenient to carry; 2. The DC ammeter needs to be placed horizontally and stably when used, and it is difficult to meet the requirements during field testing; 3. When the CT ratio is different, the DC ammeter needs to be adjusted to a suitable range. If the measuring range is too large, the pointer deflection will be small, which will easily cause misjudgment; in addition, in the case of reversed polarity, the ammeter pointer will deflect in the opposite direction and directly damage the DC ammeter; Human cooperation, and because the dry battery, ammeter and connecting wire are separated, the positive direction of the wire needs to be confirmed for each test, the wiring error rate is extremely high, time-consuming and laborious, and the work efficiency is low; 5. On the 10KV-35KV switch side, test the CT pole When it comes to sex, two people must cooperate to complete it at the same time. If the cooperation is not proper, it will affect the work efficiency, and even in the case of insufficient manpower, it is easy to lose supervision (especially the new staff who are not familiar with electrical equipment), and it is easy to enter the interval by mistake and make a wrong connection. Connecting line; 6. In 110kV and above switching sites, when testing the polarity of CT, two groups of two people must participate in different locations. Due to the long distance, the test needs to be contacted by mobile phone. There are communication deviations and are reliable. Sex is low. the

Contents of the invention

The purpose of this utility model is to solve the above problems and provide a CT polarity detector, which avoids the use of milliampere DC ammeters, has low requirements for field testing conditions, and integrates each component into two systems (pulse current generation system and polarity Display system), improve integration, easy to carry, and avoid wiring errors. When testing, it can be completed by one person alone, which improves work efficiency and work reliability. the

The technical solution adopted by the utility model to solve the problems of the prior art is: a CT polarity detector, which is characterized in that it includes a pulse current generation system and a polarity display system, and the pulse current generation system is used for electrical connection with the primary side, so The above polarity display system is used for electrical connection with the secondary side. Avoid a series of problems caused by the use of mA DC ammeters, and reduce the requirements for field test conditions. At the same time, the components are integrated into two systems (pulse current generation system and polarity display system), which improves the integration level, is convenient to carry, and avoids wiring errors. During the test, it can be completed by one person alone to avoid problems caused by poor communication. Improve work efficiency and work reliability. Moreover, the polarity display system is an integrated body, which solves the problem of wrong wiring in the prior art. the

As a further improvement and supplement to the above technical solution, the utility model adopts the following technical measures: the pulse current generating system includes a power supply, a switching device electrically connected to the power supply, and two wires electrically connected to the switching device and the power supply respectively, The two wires are used for electrical connection with the primary side. The switching device controls the on and off of the power supply, and generates pulse signals to the primary side. the

In order to improve integration, the pulse current generation system further includes a box body and a box cover matched with the box body, the power supply and switching device are arranged in the box body, and the wires extend from the box body to the outside of the box cover. the

In order to facilitate operation and remote control, the switch device is a remote control device, and the remote control device includes a remote control switch, a remote control receiving antenna standing on the cover and connected with the remote control switch signal, and the remote control switch and the remote control receiving antenna Remote control for signal connection. the

The power supply is a dry battery pack. the

The polarity display system includes a casing, and a circuit that is arranged in the casing and connects two light-emitting diodes in parallel, and the two ends of the circuit are electrically connected to the secondary side. The polarity is judged by the sequence of light emission of the two LEDs. the

The utility model has beneficial effects: 1. Avoid using a milliampere DC ammeter, and integrate each component into two systems (pulse current generation system and polarity display system), which improves integration, is convenient to carry, and avoids wiring errors, The requirements for field test conditions are also reduced. 2. When testing, it can be done by one person alone, which improves work efficiency and work reliability. 3. The polarity display system uses light-emitting diodes to display the light-emitting sequence, which is intuitive and accurate to judge, and avoids being affected by distance. 4. The switch device is a remote control device, which is convenient for operation and remote control, and avoids problems caused by long-distance manual communication. the

Description of drawings

Fig. 1 is a kind of structural representation of the utility model. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described. the

Embodiment: CT polarity detector, as shown in Fig. 1, it comprises pulse current generation system and polarity display system, and described pulse current generation system is used for being electrically connected with primary side 9, and described polarity display system is used for It is electrically connected to the secondary side 10 .

The pulse current generating system includes a power source 1, a switch device 2 electrically connected to the power source, and two wires 3 respectively electrically connected to the switch device 2 and the power source 1, and the two wires 3 are used for electrical connection with the primary side. The power supply 1 is a dry battery pack. In order to facilitate remote control, the switch device 2 is a remote control device, and the remote control device includes a remote control switch, a remote control receiving antenna 6 standing on the case cover 5 and connected with the remote control switch signal, and a signal with the remote control switch and the remote control receiving antenna 6. connected remote. the

For high integration, the pulse current generation system includes a box body 4 and a box cover 5 matched with the box body. The power supply 1 and the switching device 2 are arranged in the box body 4, and the wire 3 extends from the box body to the box body. Cover 5 outside. the

The polarity display system includes a housing 7, a circuit arranged in the housing and connected in parallel with two light emitting diodes 8, and the two ends of the circuit are electrically connected to the secondary side. the

When in use, the power channel is controlled by the switching device, and then a pulse signal is generated to the primary side, and the two light-emitting diodes 8 connected to the polarity display system on the secondary side emit light, and the polarity is judged by the light-emitting sequence. the

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. In the above embodiments, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model. the

Claims (6)

1. CT polarity detector, characterized in that it includes a pulse current generation system and a polarity display system, the pulse current generation system is used for electrical connection with the primary side, and the polarity display system is used for electrical connection with the secondary side . 2. The CT polarity detector according to claim 1, characterized in that the pulse current generating system includes a power supply (1), a switching device (2) electrically connected to the power supply, respectively connected to the switching device (2) and The power supply (1) is electrically connected to two wires (3), and the two wires (3) are used for electrical connection with the primary side. 3. The CT polarity detector according to claim 2, characterized in that the pulse current generating system includes a box (4), a box cover (5) matched with the box, and the power supply (1 ), the switching device (2) is arranged in the box body (4), and the wire (3) extends from the box body to the outside of the box cover (5). 4. The CT polarity detector according to claim 3, characterized in that the switch device (2) is a remote control device, and the remote control device includes a remote switch, standing on the box cover (5) and The remote control receiving antenna (6) connected with the remote control switch signal, and the remote controller connected with the remote control switch and the remote control receiving antenna (6) signal. 5. The CT polarity detector according to claim 4, characterized in that said power supply (1) is a dry battery pack. 6. The CT polarity detector according to any one of claims 1-5, characterized in that the polarity display system includes a housing (7), which is arranged in the housing and connected in parallel with two light-emitting diodes (8 ) circuit, both ends of the circuit are electrically connected to the secondary side.

Images