Installation method of JOSEF low voltage relay DY-110, wiring in front of the board, working voltage AC220V

Description :

　　One purpose

　　DY series voltage relays are used in relay protection circuits as action components for overvoltage protection or low-voltage lockout.

　　working principle

　　The relay is electromagnetic and operates instantaneously. The magnetic system has two coils, with the coil heads connected to the base terminals. Users can connect the coils in series or parallel as needed, thus doubling the setting range of the relay.

　　The scale value and rated value of the relay are sufficient when the coils are connected in parallel (in V units). Rotate the pointer on the dial to change the reaction torque of the balance spring, thereby changing the action value of the relay.

　　Relay action: For overvoltage relays, when the voltage rises to or exceeds the set value, the relay will act, closing the dynamic contact and disconnecting the dynamic contact. When the voltage drops to 0.8 times the set value, the relay returns, the dynamic contact opens, and the dynamic contact closes. For low-voltage relays, when the voltage drops to the set voltage, the relay acts, the dynamic contact opens, and the dynamic contact closes

　　II Technical Specifications

　　DY-32/60C and DY-34/60C specifications are long-term thermal stable (with built-in series capacitors) voltage relays.

　　● Relay scale limit error: not greater than 6%.

　　● Variation of action value: not greater than 6%.

　　The return coefficient of voltage relays DY-31, 32, 33, and 34 shall not be less than 0.8; DY-35、 The return coefficient of low voltage relays 36, 37, and 38 shall not exceed 1.25.

　　Action Time

　　For overvoltage relays

　　At 1.1 times the action value, the action time should not exceed 0.12s; at 2 times the action value, the action time should not exceed 0.04s.

　　For low-voltage relays

　　When the working voltage of the relay is 0.5 times the set voltage, the action time shall not exceed 0.15 seconds.

　　Power consumption: At the minimum setting value, the power consumed by the coil of the relay does not exceed 20VA.

　　When the temperature of the surrounding medium is+40 ℃, the relay can operate for a long time under the long-term allowable current and voltage shown in Table 2 and Table 3 without damage to insulation and other electrical components, and the temperature rise of the coil is not greater than 65 ℃.

　　● Lifespan: The relay has an electrical lifespan of 500 times and a mechanical lifespan of 5000 times.

　　Usage and maintenance

　　Before using the relay, the housing needs to be removed, the machine needs to be pulled out, and there should be no damage caused during transportation: such as the moving plate touching the magnetic plate, the balance spring coils touching each other, friction on the moving plate shaft, etc. Therefore, set the pointer of the relay to the * setting point, manually rotate the movable system towards the magnetic plate direction, and then release it. The movable system should return to its original equilibrium position until the stop, and then make necessary adjustments and settings.

　　When readjusting the relay, it must be ensured.

　　The axial movement of the movable system is between 0.15 and 0.3mm.

　　The air gap between the rotor and the magnetic pole should ensure that the rotor and the magnetic plate do not collide under any specified working conditions of the relay.

　　Relays with dynamic contact points and dynamic contact points must not have bridge shaped contacts simultaneously make contact with dynamic contact points and dynamic contact points during operation.

　　When the pointer rotates from the * scale value to the * final scale value, the coils of the balance spring must not touch each other.

　　When the relay is activated, the bridge shaped contact should slide on the centerline of the static contact (tolerance ± 1mm), and the total air gap between the dynamic and static contacts should not be less than 2mm.

　　The distance between the static contact point and the limiting plate should not exceed 0.3mm.

　　When adjusting the action value of the relay, the adjustment of the small setting value mainly changes the magnitude of the spring reaction force, while the adjustment of the large setting value mainly changes the air gap between the rotor and the magnetic plate.

　　Not suitable for lubricating relay shafts and bearings.

　　It is not allowed to clean the contacts with sandpaper or other rough materials. It is advisable to clean the contacts with a sharp blade or a clean fine grinding stone, and then wipe them clean with a clean, soft cloth to avoid touching the contacts with fingers.

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• Low voltage relay