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密度繼電器在輸入電路內(nèi)電流的作用下，由機(jī)械部件的相對(duì)運(yùn)動(dòng)產(chǎn)生預(yù)定響應(yīng)的一種繼電器。 

它包括直流電磁繼電器、交流電磁繼電器、磁保持繼電器、較化繼電器、舌簧繼電器,節(jié)能功率繼電器。 

(1)直流電磁繼電器：輸入電路中的控制電流為直流的電磁繼電器。 

(2)交流電磁繼電器：輸入電路中的控制電流為交流的電磁繼電器。 

(3)磁保持繼電器：將磁鋼引入磁回路，繼電器線(xiàn)圈斷電后，繼電器的銜鐵仍能保持在線(xiàn)圈通電時(shí)的狀態(tài)，具有兩個(gè)穩(wěn)定狀態(tài)。

(4)較化繼電器：狀態(tài)改變?nèi)Q于輸入激勵(lì)量極性的一種直流繼電器。 

(5)舌簧繼電器：利用密封在管內(nèi)，具有觸點(diǎn)簧片和銜鐵磁路雙重作用的舌簧的動(dòng)作來(lái)開(kāi)、閉或轉(zhuǎn)換線(xiàn)路的繼電器。 

(6)節(jié)能功率繼電器:輸入電路中的控制電流為交流的電磁繼電器,但它的電流大(一般30-100A),體積小, 節(jié)電功能. 

2.固態(tài)繼電器  abb密度繼電器1HSB495663-1

輸入、輸出功能由電子元件完成而無(wú)機(jī)械運(yùn)動(dòng)部件的一種繼電器。 

3.時(shí)間繼電器 

當(dāng)加上或除去輸入信號(hào)時(shí)，輸出部分需延時(shí)或**到規(guī)定的時(shí)間才閉合或斷開(kāi)其被控線(xiàn)路的繼電器。 

4.溫度繼電器 

當(dāng)外界溫度達(dá)到規(guī)定值時(shí)而動(dòng)作的繼電器. 

5.風(fēng)速繼電器 

當(dāng)風(fēng)的速度達(dá)到一定值時(shí)，被控電路將接通或斷開(kāi)。 

6.加速度繼電器 

當(dāng)運(yùn)動(dòng)物體的加速度達(dá)到規(guī)定值時(shí)，被控電路將接通或斷開(kāi)。
Density relay is a type of relay that generates a predetermined response from the relative motion of mechanical components under the action of current in the input circuit.
It includes DC electromagnetic relay, AC electromagnetic relay, magnetic holding relay, comparative relay, tongue spring relay, and energy-saving power relay.
(1) DC electromagnetic relay: An electromagnetic relay in which the control current in the input circuit is DC.
(2) AC electromagnetic relay: An electromagnetic relay in which the control current in the input circuit is AC.
(3) Magnetic retention relay: Introduce magnetic steel into the magnetic circuit, and after the relay coil is powered off, the armature of the relay can still maintain the state when the coil is energized, with two stable states.
(4) Comparison relay: A DC relay whose state changes depending on the polarity of the input excitation quantity.
(5) Tongue spring relay: A relay that uses the action of a tongue spring sealed in a tube, with a dual effect of contact spring and armature magnetic circuit to open, close, or switch circuits.
(6) Energy saving power relay: An electromagnetic relay in which the control current in the input circuit is AC, but it has a large current (usually 30-100A), small size, and energy-saving function
2. Solid state relay abb density relay 1HSB495663-1
A relay whose input and output functions are completed by electronic components without mechanical moving components.
3. Time relay
When adding or removing input signals, the output part needs to delay or * * to the specified time before closing or disconnecting the relay of its controlled circuit.
4. Temperature relay
A relay that operates when the external temperature reaches a specified value
5. Wind speed relay
When the speed of the wind reaches a certain value, the controlled circuit will be connected or disconnected.
6. Acceleration relay
When the acceleration of a moving object reaches the specified value, the controlled circuit will be connected or disconnected.