Product Features

the JZXC-20000 rectifier relay is used as a buck-boost control relay in the power supply screen; as a signal channel and track power supervision relay; and a conversion relay between the main screen and the backup screen.

Applicable environment

A) Ambient temperature: -40℃~+60℃;

B) Relative humidity: not more than 90% (temperature +25°C);

C) Air pressure: not less than 70kPa (equivalent to below 3000m above sea level);

D) Vibration: the vibration frequency is not more than 15Hz, and the amplitude is not more than 0.45mm;

E) Working position: horizontal;

F) There should be no harmful gas causing explosion hazard around, and good dust-proof measures should be taken.

Features

1. the relay is an AC 220V heavy elastic rectifier electromagnetic relay, which adopts the principle of "constant gravity" to force the moving and closing contacts to open when the coil is de-energized.

2. It adopts silver-silver oxide contact, which has the characteristics of strong anti-adhesion and low contact resistance.

3. the magnetic circuit adopts electromagnetic pure iron material with small residual magnetism, and a stop piece is installed at the closed position of the armature and the iron core to ensure the minimum air gap of the magnetic circuit, prevent the magnetization of the ferromagnetic parts of the magnetic circuit, and ensure the reliable fall of the relay.

4. the relay consists of two parts: a rectifier circuit and a non-polar relay. the rectifier circuit is a bridge rectifier circuit composed of four 1N4007 silicon rectifier diodes. the input of the rectifier is alternating current, and the rectified current output to the coil is direct current.

5. the relay contact system is composed of common contacts, with six groups of common contacts for switching on and off.

Mechanical properties

Number of contact groups: 6QH;

Identification pin number: 23, 55;

Contact gap: not less than 1.3mm;

Pallet gap: not less than 0.35mm;

Contact pressure: the dynamic contact point is not less than 250mN; the dynamic disconnection point is not less than 150mN;

Contact uniformity error: not more than 0.20mm.

Electrical characteristics

Rated value: AC220V Magnetizing value: AC220V Release value: not less than AC 35V Working value: not more than AC105V Coil resistance: 10000 (1±10%) Q2 coils in series, connect 1, 4, use 7, 8; time characteristics (At rated voltage): the pull-in time is not more than 01S, and the slow release time is not more than 0.15

Insulation withstand voltage

under the standard atmospheric conditions of the test, the insulation resistance of the relay should not be less than 100MQ.

under the condition that the air pressure is not lower than 86kPa (equivalent to the altitude below 1000m), the insulation withstand voltage of the relay should be able to withstand AC sine wave 50Hz, 2000V rms voltage, there should be no breakdown flashover after 1min, the voltage when repeating the test Should be 75% of the original test voltage value.

Dimensions

Relay: 165mm49mm163mm (lengthwidthheight)

Socket: 157mm48mm22mm (lengthwidthheight)

Installation method

the relay uses a power supply screen relay socket of type II. the relay is equipped with a locking device on the upper end of the socket, and the socket is installed on the relay frame. after the relay is inserted into the broadcasting base, the relay can be locked with a card board and locked with a hanging spring.

Relay identification pin numbers 23, 55;

Product electrical life

the relay contact is connected to DC24V1.5A resistive load; its electrical life is 1106 times.

Faults and troubleshooting methods

1. the relay contact has no output

the analysis and elimination methods of the relay contact without output are as follows:

(1) Make sure that the relay and socket should be reliably plugged in;

(2) Check that the relay should not be mechanically blocked. If a foreign object in the relay blocks the armature, the armature cannot work reliably (forward rotation) or release (reverse rotation), and the contacts cannot be reliably contacted;

(3) Check that there should be no foreign matter between the contacts, there is foreign matter between the contacts, and the contacts cannot be reliably contacted;

(4) Check that the contact resistance of the relay contact should not be too large.

2. the relay does not work or the relay with a pole cannot be reversed in the forward direction

the relay does not work or the relay with a pole cannot be reversed in the forward direction. the analysis and troubleshooting methods are as follows:

(1) Make sure that the relay and socket should be reliably plugged in;

(2) Check that the input voltage or current of the relay coil should be the rated value or the system circuit adjustment value.

Method: Use a multimeter to check the voltage relay coil input terminal voltage on the socket should meet the output voltage of the power supply screen; use a multimeter to check the voltage drop of the current relay coil input terminal on the socket should meet the voltage drop requirements of the system circuit for reliable operation of the relay; otherwise, system error;

(3) If the above two items are normal, it can be determined that the relay is faulty and the relay should be replaced;

(4) the relay coil is short-circuited or disconnected, the relay cannot work reliably or has a pole relay;

(5) the diode of the rectifier relay is impacted or short-circuited, and the rectifier relay cannot work reliably;

(6) Check that the relay should not be mechanically blocked. If a foreign object in the relay blocks the armature, the relay cannot work reliably or reverse polarity.

3. the relay does not release

the relay non-release analysis and troubleshooting methods are as follows:

(1) Make sure that the relay and socket should be reliably plugged in;

(2) Check that the input voltage or current of the relay coil should meet the requirements of the system circuit for reliable release of the relay.

Method: Use a multimeter to check that the voltage relay coil input terminal voltage on the socket should be less than the release voltage of the relay; use a multimeter to check that the voltage drop of the current relay coil input terminal on the socket should meet the requirements for reliable release of the relay in the system circuit; otherwise, it is a system failure;

(3) If the above two items are normal, it can be determined that the relay is faulty and the relay should be replaced;

(4) Check that the relay should not be mechanically blocked. If a foreign object in the relay blocks the armature, the relay cannot be reliably released.

Maintenance

Daily maintenance and maintenance items are as follows:

A) Keep the relay and socket clean;

B) Observe whether the relay operation status is normal;

C) the relay should be replaced in time for abnormal operating conditions and serious contact burnout.

Regular maintenance:

in the electrical life and life management cycle of the relay, the maintenance cycle of the infinite relay and rectifier relay should be five years; the maintenance cycle of the stepless enhanced contact relay, the poled relay and the biased pole relay should be three years; the maintenance cycle of the stepped enhanced contact relay the period should be one year. Appearance inspection and performance inspection should be carried out after the overhaul.

after-sales service

from the date of delivery, the warranty period of infinite relays, rectifier relays (the warranty period of electronic components is one year), polarized relays and biased pole relays is 1 year, and the warranty period of infinitely enhanced contact relays and polarized enhanced contact relays Provide free maintenance services for the company during the one-year warranty period; beyond the warranty period, the company will provide life-long technical support based on the actual situation and the maintenance cost of the maintenance item, creating conditions for users to master the use and maintenance methods of the relay.

A) Bad quality or damage due to transportation, storage, improper use, etc., and unsealed relays are not covered by the company's warranty;

B) If the user violates the technical requirements of this manual or fails to perform normal maintenance according to the maintenance manual during installation and use, the company does not assume any responsibility for the damage;

C) during the company's warranty period, if our company's products and parts are unpacked without the company's authorization, the company will not bear any responsibilities arising therefrom;

D) Non-our company's parts and components are assembled on the company's products without the company's consent, causing product quality problems, and the company will not assume any damage caused by this;

E) the company does not assume any responsibility for damage caused by natural disasters, such as earthquakes, floods, lightning strikes, landslides and other irresistible causes;

F) Damage caused by destruction, theft or fire extinguishment, or damage caused by other reasons not caused by the company, the company does not assume any liability arising therefrom.