產品詳情
德國倍福模塊EL2809 FR-D720-042-NA
德國倍福模塊EL2809 FR-D720-042-NA
德國倍福模塊EL2809 FR-D720-042-NA
半導體模擬勵磁調節(jié)器各單元的功能
(1)測量比較單元。測量發(fā)電機電壓信號,將其按比例變換成直流電壓信號,與給 定直流電壓進行比較,送出發(fā)電機電壓偏差信號。為使并列運行的各機組合理穩(wěn)定地分 擔無功功率,應設置調差單元。
(2)綜合放大單元。由綜合放大環(huán)節(jié)、比例積分環(huán)節(jié)和適應器環(huán)節(jié)組成。綜合放大 環(huán)節(jié)將各種基本測量輸出的、反饋和輔助限制生成的、以及穩(wěn)定和補償反應的各種直流 信號加以綜合放大,輸出給比例積分環(huán)節(jié)。比例積分環(huán)節(jié)按預定的調節(jié)規(guī)律進行加工后 輸出。適應器環(huán)節(jié)將信號電壓經放大加工成為移相控制信號電壓以控制勵磁電壓。
(3)移相觸發(fā)單元。接受綜合放大單元的輸出信號電壓的大小,改變晶閘管觸發(fā)控 制角的大小,以控制勵磁電壓。
(4)穩(wěn)壓電源。把輸入的交、直流電源變換成勵磁調節(jié)器所需的、電壓穩(wěn)定的電 源。對輸入的交、直流電源要能適時自動切換。
(5)其他各種輔助功能單元:
1)最大勵磁電流限制器。將晶閘管整流橋輸出的總電流值限制在給定的勵磁頂值 電流以下。
2)勵磁過電流限制器。在強勵或勵磁過電流達到允許時間時,將勵磁電流減小到 長期允許最大值。
3)欠勵磁限制器。根據(jù)發(fā)電機和電力系統(tǒng)穩(wěn)定計算的需要,將晶閘管整流橋輸出 最小電流限制在有功功率對應的給定值上。
4) 電壓/頻率限制器。主要用于發(fā)電機與電網(wǎng)斷開空載運行期間,防止因調速器故 障而使機組低于工頻運行,出現(xiàn)誤強勵,產生過勵磁故障。
(6)手動單元。早期手動調節(jié)勵磁,采用開環(huán)方式,后來采用以勵磁電流為信號源 的閉環(huán)調節(jié)方式。
(7)跟蹤單元。在調節(jié)器以“自動方式”按發(fā)電機端電壓為信號閉環(huán)調節(jié)的每一時 刻,跟蹤單元將手動單元的勵磁電流信號“自動緊緊跟蹤對應前述電壓信號”,以保證 在“自動”切換到 “手動”方式時,不出現(xiàn)勵磁的大幅度波動。當調節(jié)器 “自動”調節(jié) 方式有一主一備雙通道時,則需要保證備用通道自動跟蹤主通道的信號。
(8)失衡(脈沖消失)保護。監(jiān)測主通道,在主通道脈沖消失或失常時,自動切換 到備用通道。
(9) 電壓互感器斷線保護。當勵磁測量信號所用的電壓互感器電壓因故障消失時, 將勵磁調節(jié)器從“自動”切到“手動”運行。
微機數(shù)字式勵磁調節(jié)器各單元的功能
(1)模擬量輸入輸出通道。輸入采樣的量為發(fā)電機端電壓、定子電流、有功功率、 無功功率、轉子電流和系統(tǒng)電壓等電量。采樣可以是交流也可以是直流。交流采樣每周12點即可。
(2)開關量輸入輸出通道。為了安全和防止干擾,開關量輸入輸出通道均需經過光 電隔離。它主要用于現(xiàn)場操作、參數(shù)給定、機組狀態(tài)、保護等信號的輸入,以及調節(jié)器 對現(xiàn)場其他勵磁設備的操作指令和調節(jié)器各種故障信號的輸出。
(3)數(shù)字式移相觸發(fā)器。其功能和結構與模擬式移相觸發(fā)器類似,由同步整形、移 相計算、脈沖形成、脈沖放大等環(huán)節(jié)組成。
微機數(shù)字式勵磁調節(jié)器的軟件功能
微機數(shù)字式勵磁調節(jié)器的特點就是將模擬勵磁調節(jié)器的各項由硬件實現(xiàn)的功能,如信號比較、限制、綜合等功能用軟件代替。
JZSP-CSP21-10-E 1 5米
JZSP-CSM21-10-E 1 5米
FANUC電源單元A16B-1212-0100-01 1個
EX5430 SERVOSTAR 770 70A S60HZ 1
A1A13000346.09 1
A5E02205474 1
A1A084918 2
6SL3352-1AG35-8BA1 1
QRB1A-A070B70A 1
6ES7654-7HY00-0XA0 1
C911B108 1
UFC911B108
PD D405 A101 1
7KT 5503 150
Siemens 7kt5503
CIMR-JT2A0002BAA 1
ACS580-01-363A-4 帶中文面板 1
ACS510-01-060A-4 4
ACS550-01-059A-4 1
ACS510-01-09A4-4 4
6FC5220-0AA00-1AA0 1
3BSM011000-1 4
3BSM021003-A 2 pcs
3BSM056073-A 9 pcs
3AXD50000422975 1
Processor board :CM032Na MXE 327; NL 393830 A; CM032Na 6
Power distribution board: KT070Na KT070Na; NL 93829 B 6
Thyristor Controll: MX007Na MX007Na; NL 393759 B 6
Analog Input: UV094Na UV094Na; 9BEU300019-085 9
Synchronizing Board: EX058Na EX058Na; 9BEU319213 6
Digital I/O Board: VV010Na VV010Na; NL 393831 A 12
Analog Input: XU006Na XU006Na; 9BEU300019-084 6
Trafo Module: XU011Na XU011Na; 9BEU319191 6
Process interface Card: MX008Na MX008Na; 9BEU319179R1 6
HPC 185 Display keyboard patch 9BEU319110R0001 6
CI553 FS: MC 94V-0; 15V Pcs 3
NEYRPIC CI552 FS Pcs 3
NEYRPIC CI550 FS Pcs 6
Power supply A1228B1 Pcs 2
16-Bit microcomputer D8214B1 Pcs 2
Digital sensor H2102B1 Pcs 2
Converter control H2101B1 Pcs 2
Isolated bs D3412B1 Pcs 2
Isolated outputs D7221B1 Pcs 2
IC695CPU310 數(shù)量3
IC695CPE302 數(shù)量5
IC695ALG600 數(shù)量25
IC695ALG704 數(shù)量5
IC695NIU001 數(shù)量11
IC695HSC304 數(shù)量5
IC698PSA100 數(shù)量15
IC693MDL645 數(shù)量5
IC694MDL940 數(shù)量4
IC693ALG221 數(shù)量5
IC693ALG390 數(shù)量3
IC693MDL655 數(shù)量10
IC695CHS016 數(shù)量2 .
VPL-B1153F-PJ14AA 1個 面價28391
MPL-B540D-SJ72AA 1個 面價35670
MPL-B560F-MJ72AA 1個 面價44331
IC200MDL240J 2個
7、型號:6ES7193-4СD30-0AA0
6ES7193-4CD30-0AA0
數(shù)量:12
8、型號:6SL3210-1PB13-8AL0
數(shù)量:12
9、型號:6SL3246-0BA22-1PA0
數(shù)量:12
11、型號:6SL3210-1PE11-8UL1
數(shù)量:110
12、型號:6SL3210-1PE12-3UL1
數(shù)量:12
6個 SURTD3000RMXLI
3個 SURTD3000XLI
1VCF347181R0774 1
GJR2403800R1210 2
81EU50R1210
DKCXX.3-040-7 1
SN:3K240000013113 Model No: A6121B031AMA1AAS 2
140CPU21304 1 查不到面價
140CRA21110 1 面價7909
140CPS12400 1 查不到面價
ACS880-304-0570A-7+A018
SACE S5H-D 1
6ES7405-0KR02-0AA0數(shù)量5
6ES7331-7TF01-0AB0數(shù)量6
6ES7355-0VH10-0AE0數(shù)量3
6ES7412-3HJ14-0AB0數(shù)量2
730 RPM 3-12V Precision Planetary Gearmotor Metal Gears (16:1 ratio) #638260
195 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (62:1 ratio)
SEW EURODRIVE S42DT71D4 HELICAL-WORM GEARMOTOR RATIO 78.27:1 .5 Hp
Textron Gear Reducer Cone Drive 01 Ratio 10 to 1
1:14 ratio planetary gear transmission for 1/10 D90 SCX10 rc crawlers trucks
RX-112, BAYSIDE PRECISION GEARHEAD RA115-015 GEAR REDUCER. 15:1 RATIO.
Alpha SK075-MF1-3-031-000 3:1 Right-Angle Gear Reducer
Grove Gear Flexaline Gear Reducer B128-2 Ratio 10:1, Input HP 1.36
WINSMITH GEAR REDUCER PLANETARY 51H- 2254-1 (VERY SLOW OUTPUT)
NEW Alpha Right Angle Gear Box Ratio 2:1 - SK 100-MF-1-2-141
KAMOSEIKO BR50SH BALL REDUCER RATIO 1/18s GEAR REDUCER
From Malaysia
26 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (455:1 ratio) #638242
Vigodrive reducer planetary R380-7Y0028 RV-380-141 gear
Ultra TRUE 42-114334-8858 Helical True Planetary Gearhead w/25 tooth gear
BAYSIDE PG90-010 MB90-005 INLINE PLANETARY GEARHEAD RATIO 10:1
GEARHEAD MOTOR 90 DEGREE. RIGHT 10:1 RATIO GEAR REDUCER
44 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (270:1 ratio) #638248
ALPHA GEAR REDUCER ~NEW~SURPLUS~
52 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (231:1 ratio) #638250
ALPHA GEAR REDUCER ~NEW~SURPLUS~
NEUGART PLE 60 IN-LINE PLANETARY SERVO GEARHEAD REDUCER 1:8 2047185-2-010
SEW EURODRIVE GEAR REDUCER HELICAL WORM RIGHT ANGLE TYPE S47DT90S1212
142 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (84:1 ratio) #638254
ALPHA GEAR REDUCER ~NEW~SURPLUS~
2,737 RPM 3-12V Precision Planetary Gearmotor Metal Gears (4:1 ratio) #638262
BOSTON GEAR COMPANY 2:1 RATIO, BEVEL GEAR REDUCER
Textron Gear Reducer Cone Drive 01 Ratio 10 to 1
SEW EURODRIVE S42DT71D4 HELICAL-WORM GEARMOTOR RATIO 78.27:1 .5 Hp
1:5 ratio planetary gear transmission for 1/10 D90 SCX10 rc crawlers trucks
32 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (370:1 ratio) #638244
116 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (104:1 ratio) #638252
Hase Gear Hasegawa BHV-70 Gear Reducer Ratio 1:35 BHV70
FALK WORM GEAR REDUCER 1325WXQF1- 10-1 RATIO
NEW WITTENSTEIN ALPHA SP100S-MF1-7-0E1-2S 7:1 GEAR REDUCER D393271
WITTENSTEIN ALPHA SP 100S-MF2-28-1E1-2S 24MM 32MM 28:1 GEARHEAD REDUCER B464293
SEW PARALLELL HELICAL REDUCER R70, 20.91:1 RATIO MAX TORQUE 3540(lb-in)
1:14 ratio planetary gear transmission for 1/10 D90 SCX10 rc crawlers trucks
Ultra TRUE 42-114334-8858 Helical True Planetary Gearhead w/25 tooth gear
2,737 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (4:1 ratio)
38 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (316:1 ratio) #638246
Alpha Gear Box - SP 100S-MF1-5-141 - Ratio 5:1
Alpha SP 060-MF1-5 Planetary Gearhead 5:1, 3/8"-IN, 5/8"-OUT, NEMA-23
624 RPM 3-12V Precision Planetary Gearmotor w/ Metal Gears (19:1 ratio) #638258
Alpha SK+ 060S-MF1-3-0C1-1K00 Low Backlash Right Angle Gear Head 3:1 Ratio
NEW STEALTH BAYSIDE PS115-010 PLANETARY GEARHEAD RATIO 10:1 MT115-007
Parker Bayside PV40FB-010 10:1 precision planetary gearbox
New Motovario Group B Series Helical Bevel Gear Reducer BA 42U C Ratio 10.62
Alpha Gearhead Reducer SK 100S-MF2-12-1E1-1S10
Boston Gear, F71010KB4G6, Gear Reducer 10:1 Ratio 1750rpm NEW
NEUGART 3:1 RATIO PRECISION PLANETARY GEARHEAD PLE 80
LEESON IRONMAN W8210017.00 GEAR REDUCER B821-20 20:1 RATIO
Alpha SP 075-MF1-7 / 7 :1 Gearhead Gear Reducer
From Korea, South
VOGEL TYPE MLPF 25 PLANETARY GEAR REDUCER, PARTS/REPAIR
Whisper Gear Reducer 89380034 Ratio 15 to 1
Alpha SP 075S-MF1-4-1E1-2S Gearhead 4:1 Ratio Wittenstein Servo Drive Motor
Electra-Gear Gear Reducer 6322ASC510C, Frame 6322ASC5, Ratio: 10:1
IMS: GEAR SP-81 313311 PLANETARY GEARBOX, 35:1 RATIO
ALPHA RIGHT ANGLE GEAR DRIVE PN: SK-100-MF 1-2-141-000
NEUGART PLN70 i=10 Gear Reducer ratio 1:10 (free shipping)
From Korea, South
NEW!! Dodge Tigear gear reducer MR94767L1, 10:1, 140TC b, L1, Q200B010N140L1
60mm High Ratio Environmental Protecting Efficient Planetary DC Gear Motor
Alpha Getriebebau TP 025-MF2-91 TP025-MF2-91-020-000 20009223
From Malaysia
alpha TP 110X-MF2-16-0I1-2S
From Hong Kong
Boston Gear 700 Series RF71310B5J Worm Gear Speed Reducer .75 HP 10:1 Ratio
NEW DODGE QUANTIS C/N HB482CN180TC 14:1 RATIO HELICAL SPEED REDUCER 1750 RPM
MORSE WORN GEAR REDUCER FI13-10-56C-LR 0.67HP 10:1RATIO
Motovario NMRV-050 Precision Worm Gearhead 10:1 Ratio Gear Reducer
NEUGART PLE80 25:1 RATIO PRECISION PLANETARY GEARHEAD
From Korea, South
Perfection El. GEAR REDUCER DRIVE TL2610C Ratio 10:1
NEW!! Boston Gear reducer F309B-10-J, 10:1 ratio, code 45567, right hand output
Yaskawa IN87002-HS Distribution Board Hitachi Seiki
Fanuc Board Hitachi Seiki EDM#2 AC-V 68E2.119907
Yaskawa YASNAC JANCD-FC630-2 Control Card Hitachi Seiki Seicos Good Working Card
Yaskawa YASNAC JANCD-FC630 Control Card Hitachi Seiki
Yaskawa IN87001-HS Distribution Board Hitachi Seiki
SOSHIN ELECTRIC NOISE FILTER NF3030A 250 30A HITACHI SEIKI EDM#2 P2
HITACHI CNC MACHINE AC MAGNETIC CONTACTOR K50N-EP K50N EP HITACHI SEIKI EDM#2 P2
YASKAWA Yasnac JANCD-C P0 3B / JANCD-CPO3B Mori Seiki AL-2 Hitachi Seiki