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Executive standard

GB/T7417-2010 "Railway Signal AX Series Relay"

product structure

The electromagnetic system of the stepless enhanced contact slow release relay is the same as that of the stepless slow release relay (JWXC-H340). The magnetic circuit system of the JWJXC-H125/80 stepless enhanced contact slow release relay adds a copper short-circuit ring to make the slow release time longer.

The contact system consists of two parts: ordinary contacts and enhanced contacts. The structure of ordinary contacts is the same as that of non-polar relays, and the reinforced contacts are specially designed high-power contacts and arc wave devices.

Product Usage

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 relay, and then sent to the track circuit.

JCZC2-2000 transmission relay is used in the station.

Features

Heavy spring force relay.

It is necessary to install a shock absorber when in use.

Mechanical properties

Number of contact groups: 2QHJ; 2QH

Identification pin number: 14, 53;

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.

Electrical characteristics

Rated value: AC110V

Release value: not less than AC45V

Working value: not more than AC75V

Coil resistance: 2000 (1±10%) Ω

Dimensions

165mm×49mm×163mm (length×width×height)

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.

Installation method

The relay socket is installed on the combination frame (cabinet) with bolts, and the relay is inserted into the socket horizontally and clamped with a hanging spring.

Relay identification pin numbers 13, 53.