雞西市SANIL開關(guān)SC-18MP-LS,SC-18MBP-LS,中山立訊電氣有限公司直銷韓國(guó)samwhadsp繼電器。價(jià)格優(yōu)惠。歡迎詢價(jià)！
WKS-3212H04 3C 220V 12Amp. 4～32VDC
WKS-3225H04 3C 220V 25Amp.4～32VDC
WKS-3240H04 3C 220V 40Amp 4～32VDC
WKS-3250H04 3C 220V 50Amp 4～32VDC
WKS-3255H04 3C 220V 55Amp 4～32VDC
WKS-3270H04 3C 220V 70Amp 4～32VDC
WKS-3212HAC 3C 220V 12Amp 4～32VDC
WKS-3225HAC 3C 220V 25Amp 4～32VDC
WKS-3240HAC 3C 220V 40Amp 4～32VDC
WKS-3250HAC 3C 220V 50Amp 4～32VDC
WKS-3325H04 3C 440V 25Amp 4～32VDC
WKS-3340H04 3C 440V 40Amp 4～32VDC
WKS-3350H04 3C 440V 50Amp 4～32VDC
WKS-3355H04 3C 440V 55Amp 4～32VDC
WKS-3370H04 3C 440V 70Amp 4～32VDC
WKS-3325HAC 3C 440V 25Amp 85～240VAC
WKS-3340HAC 3C 440V 40Amp 85～240VAC
WKS-3350HAC 3C 440V 50Amp 85～240VAC
WKS-1212H04 2C 220V 12Amp 4～32VDC
WKS-1225H04 2C 220V 25Amp 4～32VDC
WKS-1240H04 2C 220V 40Amp 4～32VDC
WKS-1250H04 2C 220V 50Amp 4～32VDC
但環(huán)境條件要求較高；2）封閉型IP20型適用一般用途，可有少量粉塵或少許溫度、濕度的場(chǎng)合；3）密封型IP45型適用工業(yè)現(xiàn)場(chǎng)條件較差的環(huán)境；4）密閉型IP65型適用環(huán)境條件差，有水、塵及一定腐蝕性氣體的場(chǎng)合。變頻器容量的確定合理的容量選擇本身就是一種節(jié)能降耗措施。根據(jù)現(xiàn)有資料和經(jīng)驗(yàn)，比較簡(jiǎn)便的方法有三種：1）電機(jī)實(shí)際功率確定發(fā)。首先測(cè)定電機(jī)的實(shí)際功率，以此來(lái)選用變頻器的容量。2）公式法。當(dāng)一臺(tái)變頻器用于多臺(tái)電機(jī)時(shí)，應(yīng)滿足：至少要考慮一臺(tái)電動(dòng)機(jī)啟動(dòng)電流的影響，以避免變頻器過(guò)流跳閘。3）電機(jī)額定電流法變頻器。變頻器容量選定過(guò)程，實(shí)際上是一個(gè)變頻器與電機(jī)的匹配過(guò)程，常見、也較的是使變頻器的容量大于或等于電機(jī)的額定功率。主要目標(biāo)在保護(hù)暴露於不同等級(jí)之危險(xiǎn)性的機(jī)械操作人員。中文名繼電器外文名Safetyrelay組合數(shù)個(gè)繼電器與電路組合而成目的要能互補(bǔ)彼此的異常缺陷主要目標(biāo)保護(hù)暴露於不同等級(jí)之危險(xiǎn)性目錄1基本信息?定義?要求?用途2原理?電磁式?熱敏干簧?固態(tài)式3使用方法基本信息編輯定義所謂“繼電器”并不是“沒(méi)有故障的繼電器”，而是發(fā)生故障時(shí)做出有規(guī)則的動(dòng)作，它具有強(qiáng)制導(dǎo)向接點(diǎn)結(jié)構(gòu)，萬(wàn)一發(fā)生接點(diǎn)熔結(jié)現(xiàn)象時(shí)也能確保，這一點(diǎn)同一般繼電器完全不同。繼電器是一個(gè)回路中所必須的控制部分，它接受輸入，通過(guò)內(nèi)部回路的判斷，確定性的輸出開關(guān)信號(hào)到設(shè)備的控制回路里。簡(jiǎn)單地說(shuō)，繼電器都是雙通道信號(hào)型，只有兩個(gè)通道信號(hào)都正常時(shí)，繼電器才能正常工作；
WKS-1255H04 2C 220V 55Amp 4～32VDC
WKS-1270H04 2C 220V 70Amp 4～32VDC
WKS-1212HAC 2C 220V 12Amp 85～240VAC
WKS-1225HAC 2C 220V 25Amp 85～240VAC.
WKS-1240HAC 2C 220V 40Amp 85～240VAC
WKS-1250HAC 2C 220V 50Amp 85～240VAC
WKS-1255HAC 2C 220V 55Amp 85～240VAC
WKS-1270HAC 2C 220V 70Amp 85～240VAC
WKS-1325H04 2C 440V 25Amp 4～32VDC
WKS-1340H04 2C 440V 40Amp 4～32VDC
WKS-1350H04 2C 440V 50Amp 4～32VDC
WKS-1355H04 2C 440V 55Amp 4～32VDC
WKS-1370H04 2C 440V 70Amp 4～32VDC
WKS-1325HAC 2C 440V 25Amp 85～240VAC
WKS-1340HAC 2C 440V 40Amp 85～240VAC
WKS-1350HAC 2C 440V 50Amp 85～240VACR
WKS-1355HAC 2C 440V 55Amp 85～240VAC
WKS-1370HAC 2C 440V 70Amp 85～240VAC
WKS-1212M04 2C 220VAC 4-32VDC
WKS-1225M04 2C 220VAC 4-32VDC
WKS-1240M04 2C 220VAC 4-32VDC
WKS-1250M04 2C 220VAC 4-32VDC
WKS-1212MAC 85-240VAC
WKS-1225MAC 85-240VAC
WKS-1240MAC 85-240VAC
WKS-1250MAC 85-240VAC
WKS-1325M04 2C 380&440VAC 4-32VDC
WKS-1340M04 2C 380&440VAC 4-32VDC
WKS-1350M04 2C 380&440VAC 4-32VDC
WKS-1325MAC 85-240VAC
WKS-1340MAC 85-240VAC
WKS-1350MAC 85-240VAC
WKS-3212M04 3C 220VAC 4-32VDC
WKS-3225M04 3C 220VAC 4-32VDC
WKS-3240M04 3C 220VAC 4-32VDC
WKS-3212MAC 85-240VAC
WKS-3225MAC 85-240VAC
WKS-3240MAC 85-240VAC
WKS-3325M04 3C 380 &440VAC 4-32VDC
WKS-3340M04 3C 380 &440VAC 4-32VDC
WKS-3325MAC 85-240VAC
WKS-3340MAC 85-240VAC
WKS-3212FRMP 3C 220VAC 12-24VDC
WKS-3225FRMP 3C 220VAC 12-24VDC
WKS-3240FRMP 3C 220VAC 12-24VDC
WKS-3212FRMN 12-24VDC
WKS-3225FRMN 12-24VDC
WKS-3240FRMN 12-24VDC
WKS-3325FRMP 3C 380 &440VAC 12-24VDC
WKS-3340FRMP 3C 380 &440VAC 12-24VDC
WKS-3325FRMN 12-24VDC
WKS-3340FRMN 12-24VDC
WKS-1212FRMP 2C 220VAC 12-24VDC
WKS-1225FRMP 2C 220VAC 12-24VD
WKS-1240FRMP 2C 220VAC 12-24VD
WKS-1212FRMN 12-24VDC
WKS-1225FRMN 12-24VDC
WKS-1240FRMN 12-24VDC
WKS-1203PBZN 1CH 220VAC 3Amp.LED 4～24VDC
WKS-1203PBZ 1CH 220VAC 3Amp
WKS-1202PB2Z 2CH 220VAC 2Amp
WKS-1210SQ 1C 220VAC.12A 4～32VDC
WKS-1212SQ 1C 220VAC.12A 4～32VDC
WKS-1220SQ 1C 220VAC.20A
WKS-1225SQ 1C 220VAC.25A
WKS-1240SQ 1C 220VAC.40A
WKS-1255SQ 1C 220VAC.55A
WKS-1270SQ 1C 220VAC.70A
WKS-1210SQAC 1C 220VAC.12A 85 ～240VAC
WKS-1212SQAC 1C 220VAC.12A 85 ～240VAC
WKS-1220SQAC 1C 220VAC.20A
WKS-1225SQAC 1C 220VAC.25A
WKS-1240SQAC 1C 220VAC.40A
WKS-1255SQAC 1C 220VAC.55A
WKS-1270SQAC 1C 220VAC.70A
WKS-1320SQ 1C 440VAC.25A 4～32VDC
WKS-1325SQ
WKS-1340SQ 1C 440VAC.40A
WKS-1355SQ 1C 440VAC.55A
WKS-1370SQ 1C 440VAC.70A
WKS-1320SQAC 1C 440VAC.25A 85 ～240VAC
WKS-1325SQAC
WKS-1340SQAC 1C 440VAC.40A
WKS-1355SQAC 1C 440VAC.55A
WKS-1370SQAC 1C 440VAC.70ACR
WKS-0007PBZ 60VDC. 7A 4~24V
WKS-0203PBZ 200VDC. 3A
WKS-0007PBZL 60VDC. 7A(LED)
WKS-0203PBZL 200VDC. 3A(LED)
WKS-0030SQ 60VDC.30A 4~32vHS-10A
WKS-0050SQ 60VDC.50A HS-20A
WKS-0080SQ 60VDC.80A HS-40A
WKS-0140SQ 100VDC.40A HS-40A
WKS-0210SQ 200VDC.10A HS-10A
WKS-0220SQ 200VDC.20A HS-20A
WKS-0330SQ 300VDC.30A HS-20A
WKS-0530SQ 500VDC.30A HS-40A
WKS-0220MAB 200VDC 20A (2-SPDT, 1a1b) 12-24VDC
WKS-1220C2M04/AC 220VAC AC,DC
WKS-0030FRMP 60VDC 30A
WKS-0050FRMP 60VDC 50A DC60V
WKS-0225FRMP 200VDC 25A DC200V
WKS-0030FRMN 60VDC 30A DC60V
WKS-0050FRMN 60VDC 50A DC60V
WKS-0225FRMN 200VDC 25A DC200V
對(duì)于熱電偶及熱電阻信號(hào)顯示范圍就是其測(cè)量范圍。8．輸入信號(hào)種類及測(cè)量范圍:各種熱電偶、熱電阻、標(biāo)準(zhǔn)電壓及電流信號(hào)，由鍵盤設(shè)定選擇。信號(hào)種類量程代碼測(cè)量范圍電流mA010～10mAmA024～20mAmA開方034～20mA開方電壓mV110～20mVmV120～50mVmV130～100mVV140～5VV151～5VV開方161～5V開方熱電阻Pt10021-50.0～550.0°CCu10022-50.0～150.0°CCu5023-50.0～150.0°C遠(yuǎn)傳壓力電阻240～400Ω熱電偶T310.0～400.0°CE320～1000°CK330～1300°CS340～1750°CB35500～1800°C關(guān)閉通道00該通道關(guān)閉9．走紙速度:通過(guò)鍵盤任意設(shè)定。故在電路中起著自動(dòng)調(diào)節(jié)、保護(hù)、轉(zhuǎn)換電路等作用。主要用于發(fā)電機(jī)、變壓器和輸電線的繼電保護(hù)裝置中，作為過(guò)電壓保護(hù)或低電壓閉鎖的啟動(dòng)原件。[1]中文名電壓繼電器外文名Voltagerelay類別電氣設(shè)備學(xué)科電工學(xué)作用自動(dòng)調(diào)節(jié)、保護(hù)、轉(zhuǎn)換電路分類過(guò)電壓繼電器、欠電壓繼電器目錄1介紹2分類3電磁式電壓繼電器4靜態(tài)電壓繼電器介紹編輯電壓繼電器是輸入量、特性量為電壓的量度繼電器，分為過(guò)電壓繼電器和欠電壓繼電器。前者由于電壓值增加達(dá)到整定值而動(dòng)作，然后處于動(dòng)后狀態(tài)；后者由于電壓值減少達(dá)到整定值而動(dòng)作，然后處于釋放狀態(tài)。電壓繼電器有電磁型、晶體管型。電磁型電壓繼電器原理及結(jié)構(gòu)如圖1所示，當(dāng)電壓達(dá)到整定值時(shí)，鐵芯將舌片吸合。
WKS-0030SQH HS-10A
WKS-0050SQH HS-20A
WKS-0080SQH HS-40A
WKS-0140SQH HS-40A
WKS-0210SQH HS-10A
WKS-0220SQH HS-20A
WKS-0330SQH HS-20A
WKS-0530SQH HS-40A
WKS-1210SQH HS-10A
WKS-1212SQH HS-10A
WKS-1220SQH HS-20A
WKS-1225SQH HS-20A
WKS-1240SQH HS-40A
WKS-1255SQH HS-300A
WKS-1270SQH HS-300A
WKS-1270SQF HS-300A/F
WKS-1210SQHAC HS-10A
WKS-1212SQHAC HS-10A
WKS-1220SQHAC HS-20A
WKS-1225SQHAC HS-20A
WKS-1240SQHAC HS-40A
WKS-1255SQHAC HS-300A
WKS-1270SQHAC HS-300A
WKS-1270SQFAC HS-300A/F
WKS-1320SQH HS-20A
WKS-1325SQH HS-20A
WKS-1340SQH HS-40A
WKS-1355SQH HS-300A
WKS-1370SQH HS-300A
WKS-1370SQF HS-300A/F
WKS-1320SQHAC HS-20A
WKS-1325SQHAC HS-20A
WKS-1340SQHAC HS-40A
WKS-1355SQHAC HS-300A
WKS-1370SQHAC HS-300A
WKS-1370SQFAC HS-300A/F
WKS-1390SQH 1P 220/380/440VAC 90A 4~32VDC
WKS-13110SQH 1P 220/380/440VAC 110 4~32VDC
WKS-13130SQF 1P 220/380/440VAC 130 4~32VDC
WKS-3390HF04 Tb 3P 220/380/440VAC 90A 4~32VDC
WKS-33110HF04 Tb 3P 220/380/440VAC 110 4~32VDC
WKS-33130HF04 Tb 3P 220/380/440VAC 130 4~32VDC
WKS-3(2)90~110A 120*268*166 ??(W)??(L)??(H)
WKS-3(2)130A 120*288*166 ??(W)??(L)??(H))
WKS-3212HH04 HS-300A
WKS-3212HF04 HS-300A/F
WKS-3225HH04 HS-320A
WKS-3225HF04Tb HS-320A/FT
WKS-3240HH04 HS-330A
WKS-3240HF04Tb HS-320A/FT
WKS-3250HH04 HS-350A
WK-3250HF04Tb HS-330A/FT
WKS-3255HF04Tb HS-330A/FT
WKS-3270HF04Tb HS-350A/FT
WKS-3212HHAC HS-300A
WKS-3212HFAC HS-300A/F
WKS-3225HHAC HS-320A
WKS-3225HFACTb HS-320A/FT
WKS-3240HHAC HS-330A
WKS-3240HFACTb HS-320A/FT
WKS-3250HHAC HS-350A
WKS-3250HFACTb HS-330A/FT
WKS-3325HH04 HS-320A
WKS-3325HF04Tb HS-320A/FT
WKS-3340HH04 HS-330A
WKS-3340HF04Tb HS-320A/FT
WKS-3350HH04 HS-350A
WKS-3350HF04Tb HS-330A/FT
WKS-3355HF04Tb HS-330A/FT
WKS-3370HF04Tb HS-350A/FT
WKS-3325HHAC HS-320A
雙管反激式（DoubleTransistorFlybackConverter）、推挽式（Push-PullConverter）和半橋式（Half-BridgeConverter）四種。四管DC/DC轉(zhuǎn)換器就是全橋DC/DC轉(zhuǎn)換器（Full-BridgeConverter）。非隔離式DC/DC轉(zhuǎn)換器，按有源功率器件的個(gè)數(shù)，可以分為單管、雙管和四管三類。開關(guān)電源內(nèi)部結(jié)構(gòu)圖開關(guān)電源內(nèi)部結(jié)構(gòu)圖單管DC/DC轉(zhuǎn)換器共有六種，即降壓式（Buck）DC/DC轉(zhuǎn)換器，升壓式（Boost）DC/DC轉(zhuǎn)換器、升壓降壓式（BuckBoost）DC/DC轉(zhuǎn)換器、CukDC/DC轉(zhuǎn)換器、ZetaDC/DC轉(zhuǎn)換器和SEPICDC/DC轉(zhuǎn)換器。（2）V/V接線是將兩臺(tái)全絕緣單相電壓互感器的高低壓繞組分別接于相與相之間構(gòu)成不完全三角形。這種方法常用于中性點(diǎn)不接地或經(jīng)消弧線圈接地的35kV及以下的高壓三相系統(tǒng)中，特別是10kV的三相系統(tǒng)中。（3）用三臺(tái)單相三繞組電壓互感器構(gòu)成YN，yn，d0或YN，d0的接線形式，廣泛應(yīng)用于3~220KV系統(tǒng)中，其二次繞組用于測(cè)量相間電壓和相對(duì)地電壓，輔助二次繞組接成開口三角形，供接入交流電網(wǎng)絕緣監(jiān)視儀表和繼電器用。用一臺(tái)三相五柱式電壓互感器代替上述三個(gè)單相三繞組電壓互感器構(gòu)成的接線，除鐵芯外，其形式與圖3基本相同，一般只用于3~15KV系統(tǒng)。（4）三相三繞組五柱式電壓互感器，其一次繞組和主二次繞組接成星形。
WKS-3325HFACTb HS-320A/FT
WKS-3340HHAC HS-330A
WKS-3340HFACTb HS-320A/FT
WKS-3350HHAC HS-350A
WKS-3350HFACTb HS-330A/FT
WKS-1212HH04 HS-300A
WKS-1225HH04 HS-300A
WKS-1240HH04 HS-320A
WKS-1250HH04 HS-330A
WKS-1255HH04 HS-330A
WKS-1270HH04 HS-350A
WKS-1270HF04Tb HS-330A/FT
WKS-1212HHAC HS-300A
WKS-1240HHAC HS-320A
WKS-1250HHAC HS-330A
WKS-1255HHAC HS-330A
WKS-1270HHAC HS-350A
WKS-1340HHAC
WKS-1350HHAC
WKS-1370HHAC
WKS-3212HHAC
WKS-3225HHAC
WKS-3240HHAC
WKS-3250HHAC
WKS-3325HHAC
WKS-3340HHAC
WKS-3350HHAC
WKS-1270HFACTb HS-330A/FT
WKS-1325HH04 HS-300A
WKS-1340HH04 HS-320A
WKS-1350HH04 HS-330A
WKS-1355HH04 HS-330A
WKS-1370HH04 HS-350A
WKS-1370HF04Tb HS-330A/FT
WKS-1325HHAC HS-300A
WKS-1340HHAC HS-320A
WKS-1350HHAC HS-330A
WKS-1355HHAC HS-330A
WKS-1370HHAC HS-350A
WKS-1370HFACTb HS-330A/FT
(T.P.R)
WKS-1212SQTM 220VAC 12Amp 0-500KΩ
WKs-1225SQTM 220VAC 25Amp 0-500KΩ
WKS-1240SQTM 220VAC 40Amp 0-500KΩ
WKs-1325SQTM 20VAC 25Amp 0-500KΩ
WKS-1340SQTM 220VAC 40Amp 0-500KΩ
(T.P.R )
WKS-1212SQTMH HS-10A 0-500KΩ
WKS-1225SQTMH HS-20A 0-500KΩ
WKS-1240SQTMH HS-40A 0-500KΩ
WKS-1325SQTMH HS-20A 0-500KΩ
WKS-1340SQTMH HS-40A 0-500KΩ
電源
WK-15AF 15 1 90 ~260 VAC
WK-15AB
WK-15BX
WK-15CX
WK15-3B
WK15-3C
WK-30AF
WK-30AB
WKS-30BX
WKS-30CX
WKS-303BX
WKS-30-3X
WK-50AF 50 1 90 ~ 130/180 ~ 260VAC
WK-50AB 2
WK-50BD
WK50-3X 96*153*43(W*L*H)
WK-75AF
WK-75AB
WK-75BD
WK-60BX
WK-60CX
WK-100AF
WKS-90AB
WKS-100CX
WKS-100AM
WK-100DM
WK-150AF
WK-150CX
WK-130MR
送入運(yùn)算回路，根據(jù)指令和運(yùn)算可使電動(dòng)機(jī)按指令速度運(yùn)轉(zhuǎn)。（5）保護(hù)電路：檢測(cè)主電路的電壓、電流等，當(dāng)發(fā)生過(guò)載或過(guò)電壓等異常時(shí)，為了防止逆變器和異步電動(dòng)機(jī)損壞。功能作用變頻節(jié)能變頻器節(jié)能主要表現(xiàn)在風(fēng)機(jī)、水泵的應(yīng)用上。風(fēng)機(jī)、泵類負(fù)載采用變頻調(diào)速后，節(jié)電率為20%～60%，這是因?yàn)轱L(fēng)機(jī)、泵類負(fù)載的實(shí)際消耗功率基本與轉(zhuǎn)速的三次方成比例。當(dāng)用戶需要的平均流量較小時(shí)，風(fēng)機(jī)、泵類采用變頻調(diào)速使其轉(zhuǎn)速降低，節(jié)能效果非常明顯。而傳統(tǒng)的風(fēng)機(jī)、泵類采用擋板和閥門進(jìn)行流量調(diào)節(jié)，電動(dòng)機(jī)轉(zhuǎn)速基本不變，耗電功率變化不大。據(jù)統(tǒng)計(jì)，風(fēng)機(jī)、泵類電動(dòng)機(jī)用電量占全國(guó)用電量的31%，占工業(yè)用電量的50%。在此類負(fù)載上使用變頻調(diào)速裝置具有非常重要的意義。當(dāng)線圈通以交流電流時(shí),在感應(yīng)元件的電磁鐵中,由于短路環(huán)的移相作用,產(chǎn)生兩個(gè)相位不同的磁通,此磁通與其在鋁盤中感應(yīng)的渦流相互作用,產(chǎn)生電磁力知使鋁盤旋轉(zhuǎn),當(dāng)電流增大到整定電流時(shí),電磁力矩大于彈簧的反作用力矩,鋁支架轉(zhuǎn)動(dòng),扇齒與蝸桿咬合,并隨著蝸桿旋轉(zhuǎn)而上升,其頂桿推動(dòng)電磁元件的動(dòng)鐵,當(dāng)動(dòng)鐵與電磁鐵之間的氣隙減小到一定程度時(shí),動(dòng)鐵被吸合,動(dòng)鐵尾部的頂板推動(dòng)接點(diǎn)閉合,并推下信號(hào)牌,顯示繼電器過(guò)電流狀態(tài)。設(shè)備介紹編輯原理電磁式過(guò)流繼電器的工作原理是復(fù)合式的，由公用一個(gè)線圈的感應(yīng)式和電磁式的兩個(gè)元件組成。當(dāng)繼電器的線圈通以交流電流時(shí)，則在鐵芯的遮蔽與未遮蔽部分產(chǎn)生兩個(gè)具有一定相位差的磁通。此磁通與其在圓盤中感應(yīng)的渦流相互作用。
WKS-140MR
WKS-102CT 106*199*50(W*L*H)
WKS-128M
WKS-150MR
WK-903M
WK-903MX
WK-200AF
WK-200CX
WK-160MR
WK-200MR
WK-250A~F 100*200*90
WK-300A~F
WK-400A~F
WKS-500A~F
WKS-600A~F
WKS-750A~F
WKS-1000A~F
WKS-1200A~F
WKS-1500A~F
WKS-1210SQ
WKS-1220SQ, WKS-1225SQ
WKS-1320SQ, WKS-1325SQ
WKS-1240SQ, WKS-1340SQ
WKS-1255SQ, WKS-1270SQ
WKS-1355SQ, WKS-1370SQ
WKS-3212H, WKS-1212H
WK-1225H, WKS-1325H
HS-300A/F DC24V60*60mm WKS-1270SQ, WKS-1370SQ
WKS-3212H HS-320A WKS-3225H , WKS-3325H
WKS-1240H,
WKS-1340H HS-320A/FT Bolt DC24V,AC22080*80mm
WKS-3225H , WKS-3240H
WKS-3325H , WKS-3240H
WKS-1250H , WKS-1350H
WKS-3240H , WKS-3340H
WKS-1250H , WKS-1255H
WKS-1350H , WKS-1355H
HS-330A/FT DC24V,AC22080*80mm
WK-3250H , WK-3255H04
WKS-3350H , WKS-3355H04
WKS-1270H , WKS-1370H
WK-3250H , WKS-3350H
WKS-1270H , WKS-1370H
WK-3270H04, WK-3370H04
WKS-BKT
DSP-VPFR22/44/69
DSP-VIP-PL
DSP-VIP-PM
DSP-VIP-CM
DSP-VIP-CL
DSP-VIP-RTM
DSP-VIP-5EM/5TM/5CM
DSP-VIP-5EL/5TL/5CL
DSP-COM,CCM(485),CTM(4-20mA)
DSP-COL,CCL(485),CTL(4-20mA)
DSP06-3ESSG
DSP06-3ESS(30,60,120)
DSP-10SP, 20SP, 30SP
DSP-SP 01
DSP-30ES
DSP-06ES, (06, 10, 30, 50)
DSP-06ES2, 30-ES2, 60-ES2, 120-ES2
DSP06-SS (30, 60, 120)
DSP-SS 120
DSP-326L DSP-346L DSP-336L DSP-143R DSP-146L DSP-136L DSP-126L DSP-123R DSP-133R
DSP-DGFR DSP-VIP-4EL05Z7-DC DSP-SDTR DSP-UVR110 DSP-UVR220 DSP-UVR380 DSP-OVR380
DSP-OVR220 DSP06-UCR, (30, 60) DSP-WL252R-S DSP-GR 600
DSP-E2CV DSP-NGR44 DSP-NGR22 DSP-APS-BMH DSP-APS-BRH
晶閘管就不能導(dǎo)通?？刂茦O的作用是通過(guò)外加正向觸發(fā)脈沖使晶閘管導(dǎo)通，卻不能使它關(guān)斷。那么，用什么方法才能使導(dǎo)通的晶閘管關(guān)斷呢?使導(dǎo)通的晶閘管關(guān)斷，可以斷開陽(yáng)極電源（圖3中的開關(guān)S）或使陽(yáng)極電流小于維持導(dǎo)通的值（稱為維持電流）。如果晶閘管陽(yáng)極和陰極之間外加的是交流電壓或脈動(dòng)直流電壓，那么，在電壓過(guò)零時(shí)，晶閘管會(huì)自行關(guān)斷。應(yīng)用類型圖4示出了雙向可控硅的特性曲線。由圖可見，雙向可控硅的特性曲線是由三兩個(gè)象限內(nèi)的曲線組合成的。象限的曲線說(shuō)明當(dāng)加到主電極上的電壓使Tc對(duì)T1的極性為正時(shí)，我們稱為正向電壓，并用符號(hào)U21表示。當(dāng)這個(gè)電壓逐漸增加到等于轉(zhuǎn)折電壓UBO時(shí)，圖3(b)左邊的可控硅就觸發(fā)導(dǎo)通，這時(shí)的通態(tài)電流為I21。如果出現(xiàn)的話，很可能是1PM模塊出現(xiàn)故障，因?yàn)?PM模塊內(nèi)含有過(guò)壓過(guò)流、欠壓、過(guò)載、過(guò)熱、缺相、短路等保護(hù)功能，而這些故障信號(hào)都是經(jīng)模塊控制引腳的輸出Fn引腳傳送到微控器的，微控器接收到故障信息后，一方面脈沖輸出，另一方面將故障信息顯示在面板上，一般更換1PM模塊。4)變頻器顯示過(guò)壓故障變頻器出現(xiàn)過(guò)壓故障，一般是雷雨天氣，由于雷電串入變頻器的電源中，使變頻器直流側(cè)的電壓檢測(cè)器動(dòng)作而跳閘，在這種情況下，通常只須斷開變頻器電源1min左右，再合上電源，即可復(fù)位；另一種情況是變頻器驅(qū)動(dòng)大慣性負(fù)載，就出現(xiàn)過(guò)壓現(xiàn)象，因?yàn)檫@種情況下，變頻器的減速停止屬于再生制動(dòng)，在停止過(guò)程中，變頻器的輸出頻率按線性下降。
