- Product Details
The transmission relay is one of the important equipment in the AC counting code automatic blocking equipment. The DC pulse sent by the electric code transmitter is transformed into an AC pulse by the transmission relay, and then sent to the track circuit.
JCZC1-72 transmission relay is used for automatic blocking interval.
Heavy spring force relay.
The relay socket is installed on the combination pear (cabinet) with bolts, and the relay is horizontally inserted into the socket and clamped with a hanging spring.
Relay identification pin numbers 13, 53.
a) Ambient temperature: -40℃~+60℃;
b) Relative humidity: not more than 90% (temperature +25°C);
c) Air pressure: not less than 70kPa (equivalent to an altitude below 3000m);
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.
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.
In the electrical life and life management cycle of the relay, the maintenance cycle of the stepless relay and the rectifier relay should be five years;
The overhaul period of stepless enhanced contact relays, poled relays and biased pole relays should be three years;
The overhaul period of stepped reinforced contact relays should be one year.
Appearance inspection and performance inspection should be carried out after the overhaul.
Number of contact groups: 2QHJ; 2QH
Identification pin number: 14, 52;
Strengthen the contact gap: not less than 1.5mm;
Ordinary contact gap: not less than 0.8mm;
Strengthen the contact pressure: the front contact is not less than 450mN; the rear contact is not less than 450mN;
Ordinary contact pressure: the front contact is not less than 250mN; the rear contact is not less than 250mN;
The air gap between the iron core and the street iron when the relay is working: not more than 0.20mm.
Strengthen the contact pressure on the transmission rod: not less than 100mN.
Strengthen the joint travel: not less than 0.1mm.
Common travel of common contacts: not less than 0.25mm
Radial travel distance of street iron: 0.3mm-0.7mm.
Street rail vertical travel: 0.3mm-0.5mm.
Street rail axial travel: 0.05mm-0.15mm.
Rated value: DC12V
Release value: not less than DC2V
Working value: not more than DC7.5V
Coil resistance: 72 (1±10%) Q
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.
Product electrical life
The relay contact is connected to DC220V1.5A
Resistive load; its electrical life is 1×106 times.
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; if the warranty period expires, the company will burn the relay based on the actual situation and maintenance items. The company provides life-long technical support to create 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 the products and parts of Shanghai Shenxin Railway Signal Equipment Co., Ltd. are unpacked without the company's authorization, the company will not bear any responsibilities arising therefrom;
d) Non-Shanghai Shenxin Railway Signal Equipment Co., Ltd. components that are assembled on the company's products without the company's consent cause product quality problems, and the company does not assume any responsibility for 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) The company does not assume any responsibility for damage caused by damage, theft or fire extinguishment, or damage caused by other reasons not caused by the company.