Intelligent CVT Capacitance Transformer Failure Phenomenon And Processing Method

Safe grating, as an important industrial safety protection device, is widely used in modern industrial automation production lines and robotics workstations. Its core function is to monitor the working area in real time to prevent personnel from accidentally entering the dangerous area to effectively ensure the personal safety of operators.Avoid injury accidents caused by improper human -machine interaction.The following will be introduced in detail from the working principles, classification, application areas, and selection and installation precautions of the safe grating.

working principle

Safe grating is usually composed of two parts: transmitter and receiver.The transmitter emits a series of parallel infrared beams, and the receiver is responsible for receiving these beams.When the beam is not blocked,ADG412BRZThe receiver will continue to receive the signal and keep the machine running normally. Once an object enters the beam range, the beam is blocked, and the receiver will not be able to receive the corresponding signal, thereby triggering the security mechanism and stopping the machine to stop operation.

International security standard

(1)、ISO 13849-1: This is a standard for assessment principles related to the safety control system of mechanical security control systems.It provides a framework for assessing the safety control system, including the safe grating, to ensure that it reaches the predetermined safety performance level (PL，Performance Level）。

(2)、IEC 61508: This is a general functional security standard, which is suitable for the safety life cycle management of all types of electrical, electronics, and programmable electronic safety -related systems.The design and manufacturing of the safety grating must meet this standard to prove that they can reliably execute the security function in the expected application environment.

(3)、IEC 61496: This is a safety standard specifically for photoelectric protection equipment (such as safe grating), divided into two parts:IEC 61496-1 For the safety equipment for fixed installation, and IEC 61496-2 For mobile devices.These two parts specify the performance requirements, test methods and installation guidelines of the safety grating.

Classification

According to different use needs and scenes, the safety grating can be divided into multiple types:

1Fixed safety grating: suitable for fixed operating areas, the number of beams and layouts are fixed. Once the installation is completed, the protection area is determined.

2The adjustable safety grating: The beam spacing can be adjusted according to actual needs, and the flexibility is high, suitable for different sizes of protection areas.

3, Control the safety grid with both hands: It is required to start the device with two hands at the same time to ensure that the body is far from the dangerous areas, and it is suitable for a high -risk operating environment.

4Laser scanner: scan the entire area by rotating laser heads, suitable for safety protection in complex shapes or irregular areas.

5Light curtain: forming a continuous light wall with large coverage area, suitable for personnel entering and exit in open areas such as doors and channels.

Application field

Safe grating is widely used in various industrial fields, including but not limited to:

● Automobile manufacturing: In the links of stamping, welding, assembly, etc., the operator is protected from the damage of the robotic arm or mobile components.

● Electronic manufacturing:SMTProduction lines, automated assembly cables, etc. to ensure the safety of people around the automated equipment that operates at high speed.

● Logistics warehousing: In the automatic warehouse and sorting system, prevent personnel from entering the path of automated transportation vehicles or stackers.

● Food processing: Provide safety protection on the production line that needs to be hygienic and frequent contact with personnel.

● Packaging printing: high -speed packaging lines, printing machines, etc., to prevent operators from approaching the mechanical part of fast operation.smartCVTCapacitors (capacitive transformer (Capacitive Voltage Transformer, AbbreviationCVT) It is a sensor for measuring high voltage, which is often used for voltage measurement and protection devices in the power system.CVTCapacitors realize voltage measurement by measuring the relationship between the voltage signal and the capacitor signal.

smartCVTCapacitor transformers are mainly capacitive components,CY7C1515KV18-300BZXCInstomotor elements, insulation materials, winding, metal cases, and electronic components.

according toCVTDifferent classification standards of capacitive transformers can be divided into the following types:

1. Traditional typeCVTCapacitor Instensor: Traditional typeCVTCapacitor transformers are based on traditional design principles and have the characteristics of simple, reliable and mature.Their output signals are analog signals, and they usually need external modulus converters to convert them into digital signals.

2. DigitalCVTCapacitor Instensor: Digital typeCVTCapacitors transform the voltage signal directly into digital signal output through the internal modulus converter.this typeCVTCapacitor transformers have the characteristics of high precision, strong anti -interference ability, and automatic calibration.

3. intelligenttypeCVTCapacitor Instensor: Smart TypeCVTCapacitor transformer is based on digital typeCVTBased on the capacitor intestines, intelligent functions are added.They canData exchange with other devices through communication interfaces to achieve remote monitoring, fault diagnosis, data storage and other functions.

CVTThe fault of capacitive transformers mainly includes the following aspects:

1. Output signal is abnormal:CVTThe output signal of the capacitor intestines may cause the voltage measurement error to increase or the voltage cannot be measured normally.

2. Insulation damage:CVTThe insulating material of the capacitive transformer is damaged, which may cause discharge inside the capacitor transformer, which will affect the measurement results.

3. Winding disconnection:CVTThe winding of the capacitor intestines may cause the capacitance transformer to fail to work properly.

forCVTThe fault treatment of capacitive transformers can take the following methods:

1. Check the output signal: by checkingCVTWhether the output signal of the capacitor intestines is stable and accurate, and determine whether there is an abnormal output signal.

2. Check the insulation status: use the insulating tester pairCVTTest the insulation material of the capacitor intestines to determine whether there is an insulation damage.

3. Check the wound connection: yesCVTThe winding intestinal winding is checked to ensure that the winding is not disconnected or in poor contact.

4. Diagnosis of failure: rightCVTCapacitor transformers are diagnosed with faults. By detecting and analyzing the fault phenomenon and the status of each component, the cause of the fault is determined, and corresponding repair measures are taken.

What needs to be noted isCVTThe fault treatment of capacitive transformers is recommended to operate by professional technicians to ensure the safety and accuracy of the operation.The above is onlyFor general introduction, the specific fault treatment method should be determined according to the specific situation.

Select and install precautions

1Risk assessment: Before selecting a safe grating, detailed risk assessment should be performed to determine the required safety level and protection area.

2、Response time:According to the specific requirements of the application, select the safety grating of the corresponding response speed to ensure that the hazardous actions can be stopped in the shortest time.

3Installation location: The grating should be installed at the entrance of the dangerous area to ensure that there is no blind area and avoid external light interference.

4Maintenance and inspection: regularly clean and functional inspections of safe grating to ensure that it is always in a good working state.

5, Compliance: choose to meet international security standards (such asISO 13849、IEC 61508Wait for products to ensure legal compliance.

Safety grating as modern industrial safety productionAn important part of,Through its high sensitivity and reliability, it provides a solid security barrier for operators. It is one of the key equipment for realizing the harmonious coexistence of man -machine, improving production efficiency, and ensuring the sustainable development of enterprises.