Product Introduction

Infinitely enhanced contact relay: JWJXC-100 is a dedicated multiplexer used to close and open the signal control circuit. It is an important part of railway signals.

It plays an important role no matter as the core component of the relay signal system or as the interface component of the electronic or computer signal system. The reliability of the action of the relay directly affects the reliability and safety of the signal system.

Product Usage

The JWJXC-100 stepless strengthened contact relay is used as a power conversion and supervisory relay in the power supply screen.

Product function

The signal relay is an important component in the interlocking equipment, and is the main equipment to ensure the safe operation of the system. The signal relay can control the switching of the turnout, lock and unlock the route, and control the opening and closing of the signal machine. Its reliability, availability, maintainability and the entire sauna line are the keys to the safety of railway transportation and operational services.

Features

1. JWJXC-100 and JWJXC-7200 type relays are DC 24V, DC 220V heavy elastic contact electromagnetic relays, adopting the principle of "constant gravity" to force the moving and closing contacts to open when the coil is de-energized.

2. The use of silver-silver oxidation requires contacts, 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 installs the stop piece at the closed position of the armature and the iron core to ensure the minimum air gap of the magnetic circuit, prevent the ferromagnetic parts of the magnetic circuit from magnetization, and ensure the reliable fall of the relay.

4. The magnetic circuit system of the relay is basically the same as the AX series of non-polar relays. The difference is the diameter of the iron core pole piece and the thickness of the armature stop piece to increase the release value and reduce the release time.

5. The contact system is composed of two parts: ordinary contacts and reinforced contacts. There are two groups of moving and breaking ordinary contacts; four groups of moving and closing reinforced contacts with arc extinguishing magnets. The structure of ordinary contacts is the same as that of non-polar relays. The reinforced contacts are specially designed. High-power contacts and arc extinguishers.

Structural characteristics

The electromagnetic system of the stepless strengthened contact relay is a stepless magnetic circuit with an enlarged size. The contact system is composed of two parts: a normal contact and a strong contact. The normal contact is the same as the stepless relay. Conversion, Daohui start, etc.) designed contacts and arc extinguishers.

Product Features

Mechanical properties

Number of contact groups: 4QJ; 2H

Identification pin number: 22, 54;

Strengthen the contact gap: not less than 7mm;

Ordinary contact gap: not less than 4.5mm;

Reinforce the gap of the support plate: generally not less than 0.35mm;

Reinforce the gap of the support plate: the reinforcement is not less than 0.1-0.3mm;

Strengthen contact pressure: dynamic closing is not less than 600mN;

Ordinary contact pressure: dynamic breaking is not less than 200mN;

Contact uniformity error: not more than 0.20mm.

Electrical characteristics (at +20℃)

Coil resistance: 50 (1±10%) Ω×2

The coils are connected in series, connect 2, 3 to use 1, 4;

Rated value: DC24V;

Magnetizing value: DC40V;

Working value: not more than DC10V;

Release value: not less than DC3.5V;

Time characteristics (at rated voltage): the pull-in time is not less than 0.1S;

Time characteristics (at rated voltage): the release time is not less than 0.1S;

Contact resistance: not more than 0.10Ω.

Dimensions

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

Socket: 157mm×48mm×22mm (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 less 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 1 min, and the voltage during repeated test should be 75% of the original test voltage.

Applicable environment

a) Ambient temperature: -40℃~+60℃;

b) Relative humidity: not more than 90% (temperature +25℃);

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.

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 socket, the relay can be locked with a card board and locked with a hanging spring.

JWJXC-100 type relay identification pin numbers 22, 54; JWJXC-7200 type relay identification pin numbers 14, 55.

Installation Precautions

1. When installing the relay, make sure that the insulation interval between the broadcast base is intact, the socket hanging spring is intact and undamaged, and the discriminating pin of the broadcast base is in the correct position and should not be missing.

2. Pay attention to the relative position between the relay and the broadcasting base when plugging in the relay to avoid damage to the relay or socket during broadcasting.

3. When repairing and replacing the relay, first remove the fixed relay spring, and then pull out the relay. Do not use excessive force or shake left and right when pulling it out, as it may damage the relay or socket.

Product electrical life

The relay contacts are connected to DC24V1A resistive load; its electrical life is 2×106 times.

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 project cost of the relay, 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 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) 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.