Maimakon da ba a kan gida: Me ke wani? (Maimakon da ba a kan gida da Maimakon da ake kan gida, Misauna)
Misalai a Dry Contact?
A dry contact (ko da ake kira a volt free contact ko potential-free contact) ita ce misali mai kyau a cikin da ake amfani da shi wanda ba ake bayar wannan takarda daga switch baki daya, amma ake bayar tare da masu aiki wasu. Misalai a dry contacts suna nufin passive contacts, saboda ba ake amfani da energy a kan misalai.
Dry contact yana iya aiki kamar switch na musamman wanda ya fara ko kuma ya sauki aiki. Idan misalai an sanka, current ya zama a tunta harshe, amma idan misalai an bukata, ba za a zama current a tunta harshe ba.
Yana iya a nufin misalai na biyu na relay circuit wanda ba ake yi aiki ko kuma koyar primary current wanda relay ke kontrola. Saboda haka, dry contacts suna amfani a kan koyar isolation. Misalai a dry contact yana nuna a hoto na biyu.
Dry contacts suna samun da suka fi sani a cikin relay circuit. Saboda a cikin relay circuit, ba ake amfani da power daga masu aiki gaba a kan misalai na relay, amma power ta ake bayar tare da circuit na biyu.
Dry contacts suna amfani a cikin AC distribution circuits (less than 50 V). Suna iya amfani don koyar alarms kamar fire alarms, burglar alarms da kuma alarms da ake amfani a cikin power systems.
Dry Contact Vs. Wet Contact
Tambayar da ke kusa a cikin dry contact da wet contact ana nuna a cikin jadawar da aka baka a nan.
| Dry Contact | Wet Contact |
| Dry contact ita ce wanda power ta ake bayar tare da masu aiki wasu. | Wet contact ita ce wanda power ta ake bayar tare da power source na control circuit wanda ake amfani don koyar contact. |
| Yana iya aiki kamar switch na ON/OFF. | Yana aiki kamar switch na controlled. |
| Yana iya a nufin misalai na biyu na relay circuit. | Yana iya a nufin misalai na uku. |
| Dry Contacts suna amfani don koyar isolation bayan devices. | Wet contacts suna bayar power na sama don koyar device. Saboda haka, ba suke koyar isolation bayan devices ba. |
| Dry contacts suna nufin “Passive” contacts. | Wet contacts suna nufin “Active” ko “Hot” contacts. |
| Sunan samun da suka fi sani a cikin relay circuit saboda relay ba ake bayar power daga masu aiki gaba a kan contact. | Suna amfani a cikin control circuit inda power ta intrinsic to the device don koyar contact. Misauna: Control Panel, temperature sensors, air-flow sensor, etc.. |
| Dry contacts ita ce relay wanda ba ake amfani mercury-wetted contacts. | Wet contacts ita ce relay wanda ake amfani mercury-wetted contacts. |
| Mutummiyar rawa na dry contacts ita ce ta koyar complete isolation bayan devices. | Mutummiyar rawa na wet contact ita ce ta make troubleshooting much easier saboda simplicity of wiring and the same voltage level. |
Summary: Misalai a dry contacts suna sanka ko kuma sauki aiki, kuma suna koyar complete isolation bayan devices, saboda output power ta completely isolated from the input power. Amma, wet contacts ba suke koyar complete isolation, saboda output power ta immediately supplied along with the input power idan switch ya energize.
Dry Contact Relay
A cikin dry contact relay, misalai suna sanka ko kuma sauki aiki bila yanay amfani voltage. Saboda haka, za a iya kontrola dry contact relay a kan voltage level na baya.
RIB series dry contact input relay suna amfani dry contacts na dama kamar switches, thermostats, relays, da solid-state switches, etc. Dry contact input RIB ta bayar low-voltage signal don operates the relay by closing the dry contact.
Power don energize the relay ta ake bayar tare da wire na biyu. Misalai na relay da dry contacts suna isolate daga input power, saboda za su iya wired to switch any load.
RIB02BDC dry contact relay yana nuna a hoto na biyu. Wannan relay tana da dry contacts, kuma za a iya amfani a cikin types na dama na power applications.
Misauna na dry contact relay wanda ake amfani don koyar blower motor yana nuna a hoto na biyu. Idan 24 V applied to the relay coil, dry contact ta close kuma ita operates the blower motor.
