Siemens APT Relays - High Voltage Relay Fault Causes and Solutions

Create Date: 2024-8-30 12:03:23|Source: APT/Siemens Shanghai Ergong

1. Some common faults of high-voltage relay coils

1. The common fault cause of the coil is often disconnected: whether the ultrasonic wave is used to clean the high-voltage relay, or whether the overvoltage is added to the coil will also promote the probability of the coil being disconnected.

2. The common fault reasons for the lack of power engineering in the coil are: first of all, the working voltage of the high-voltage relay coil must be determined, and it is assumed that the working voltage of the power supply system to the coil is lower than the posture working voltage, which will cause the contact to be out of posture.

3. Common fault causes of coil optical rotation connection: check whether the diode equipped with the high voltage relay is equipped with optical rotation error, which will make the contact not operate.

4. Appear coil communication AC with; The DC DC power supply system is incorrect, and common fault reasons: if the AC voltage is added to the high-voltage relay coil of the AC coil, then there will be a hot coil, which is very likely to cause ablation, and if the AC current is added to the high-voltage relay coil of the DC coil, it will make the moving iron sheet vibrate continuously and then cannot work normally.

5. If a part of the coil is connected to the power supply for a long time, it will lead to the hot coil and the malignant transformation of the insulation layer, which will promote the common fault of the high-voltage relay posture.

Second, some common fault solutions for high-voltage relay coils

1. A simpler and better way is to disassemble and replace the high-voltage relay again.

2. There is also to determine the working voltage of the coil to prevent the working voltage supplied by the coil from being less than the working voltage.

Siemens APT Relays - High Voltage Relay Fault Causes and Solutions

More on that

	What are the main problems with Siemens APT Relays – Solid State Relays? When the solid state relay is open and there is voltage at the load end, there will be a certain leakage current at the output end, and care should be taken to prevent electric shock when using or designing. When the solid-state relay fails to be replaced, the original model or the product with the same technical parameters should be selected as far as possible, so as to match the original application line and ensure that the system ...
	Siemens apt - TL series police lights frequently asked questions 1. How many light sources are there for the TL-70 police light? There are 3 types, namely LED, incandescent and xenon. 2. What are the colors of the TL-70 police light? There are 5 types, which are red, yellow, green, blue, and white. 3. What are the types of TL-70 police lights? 3 ...
	Siemens APT Relays – Maintenance of high-voltage relays 1. Regular cleaning: The relay needs to be cleaned regularly with dust and dirt to keep its surface clean and smooth. It can be cleaned with a clean cloth or brush, and detergents containing acids and bases should be avoided. 2. Check the wiring: The wiring of the relay needs to be fastened firmly, and the contact ...
	Siemens APT LA39 series button FAQ 1. What are the installation methods of LA39-A/B/C button? There are five types in total: the Z1 diagonal screw unit, the Z2 straight screw unit, the Z3 nut device with fastening screws, the Z4 nut device without fastening screws, and the Z5 quick and convenient one-handed device 2. LA39 series products can be used ...
	Siemens APT - AD16 series indicator frequently asked questions 1. Why does the indicator light still glow after the control power supply has been disconnected? This situation is caused by the presence of interference voltage, and this problem can be solved by ordering our anti-interference indicator light 2. What are the operating hours of the AD16 series indicators? More than 30000 small ...
	Siemens APT - ALS series limit switch FAQ 1. What are the installation methods of ALS limit switches? Usually the limit switch is divided into front of the board installation or board back installation, all of which are installed by screws. 2. What are the different modes of limit switch action? According to the action mode of the limit switch head, it is divided into ...
	Siemens APT Current Transformer - The difference between voltage transformer and current transformer The difference between the voltage transformer and the current transformer in terms of effect principle The primary difference is that the operating conditions are very different during normal operation, and the main performance is as follows: 1) The current transformer can be short-circuited twice, but it cannot be opened; The voltage transformer can be opened twice, but it must not be short-circuited 2) ...
	Siemens APT Relays – the working principle and function of relays How relays work Relays generally refer to electromagnetic relays, that is, mechanical actions. The working principle of the relay is essentially to use one loop (generally a small current) to control the on/off of another circuit (generally a large current), and in this control process, ...
	Siemens APT Relays - Precautions for the use of solid state relays 1. When choosing the solid state used in the printed circuit board with small current specifications, because the lead terminal is made of high thermal conductivity material, the welding should be carried out under the condition that the temperature is less than 250 °C and the time is less than 10S.
	Siemens APT Relays – Testing of Relays (1) Measure the resistance of the contact: use the resistance of the multimeter to measure the resistance of the normally closed contact and the moving point, and the resistance value should be 0; The resistance between the normally open contact and the moving point is infinite. From this, it is possible to distinguish which is a normally closed contact and which is normally open. (2) Coil resistance: multimeter R...
	Siemens APT current transformer - how to see the multiple of the current transformer 1. Most of the multiple values can be seen from the nameplate attached to the instrument, which will show the style of the value/value, which can be known by dividing the previous value by dividing the back value when calculating the standard core-piercing turns. If the actual number of turns of the grommet does not conform to the standard, then the multiple should be ...
	Siemens APT limit switches – what are the limits used for? daily life There are many applications of travel switches, and it is found in many electrical appliances. So what does such a simple switch do? It mainly plays the role of chain protection. The most common example is its use in washing machines and tape recorders (VCRs). ...
	Siemens APT Relays - What are the relays that burn out? 1. The position of the auxiliary contact is not suitable. After the switch has been tripped, the mechanical part has moved, worn phenomenon, resulting in the auxiliary contact position offset to the correct position, in the protection action tripping, when the auxiliary contact is not disconnected, the outlet electrical appliances, electrical appliances, relays have returned, and it is ...
	Siemens APT current transformers – precautions for the use of current transformers 1) The wiring of the current transformer should comply with the principle of series connection: that is, the primary winding resistance should be connected in series with the tested circuit, while the secondary winding resistance should be connected in series with all instrument loads 2) According to the size of the measured current, select the appropriate transformation ratio, otherwise the error will increase. At the same time, one end of the secondary side must be grounded in case ...
	Siemens APT Relays – The action of high and low voltage relays and how to adjust the low voltage side 1. Disconnect the control power supply: Before making the low-voltage terminal contact adjustment, the control power supply should be disconnected first to avoid the current directly or indirectly passing through the relay contact, and avoid electric shock or damage to the relay. 2. Open the relay cover: Open the relay cover, you can see the inside of the relay.
	Siemens APT Limit Switches - Introduction to the types and characteristics of limit switches Conventional domestic travel switch LX19-001/111 in the LX19 series, LXK3-20S/T in the LXK3 series, JLXK1 series JLXK1-111/411/511 in the conventional travel switch are the most representative.
	Siemens APT Relays - Installation Precautions for High and Low Voltage Relays 1. Choose the right relay: When choosing a high and low voltage relay, you should choose the right product according to your needs, such as selecting according to the rated voltage, current and other information 2. Installation location: high and low voltage relays should be installed in dry, ventilated, non-corrosive gas, less dusty areas, ...
	Siemens APT current transformer – wiring method of current transformer 1. The single wiring mode can only feedback the status of single-phase current. 2. Three-phase complete star wiring, usually used in transformer differential protection wiring. 3. The two-phase incomplete star wiring method is used frequently in daily work. 4. The two phases ...
	Introduction to the features of Siemens APT DY2 miniature relay Various specifications, with indicator light, with manual test button, with surge suppression loop and other functions Coil control voltage DC6V-220V, AC6V-240V(50/60HZ) The rail type is equipped with a variety of adapting sockets LED indicator, DC is green, AC is red Illuminating...
	Siemens APT - FM series metal button indicator frequently asked questions 1. Which series of metal buttons can produce two-color buttons with light? FM25N 2. Which series can produce knobs? FM-N series 3. Which type of metal illuminated button needs an external resistor for step-down? FM16E 4. What is the material of the shell ...