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FANUC A03B-0819-C158 獨立支路法

讓電流從電源正極流出，在不重復經過同一元件的原則下，看其中有幾條路流回電源的負極，則有幾條獨立支路。未包含在獨立支路內的剩余電阻按其兩端的位置補上。應用這種方法時，選取獨立支路要將導線包含進去。

例7.畫出圖18的等效電路。

方案一：選取A—R2—R3—C—B為一條獨立支路，A—R1—R5—B為另一條獨立支路，剩余電阻R4接在D、C之間，如圖19所示。

方案二：選取A—R1—D—R4—C—B為一條獨立支路，再分別安排R2、R3和R5，的位置，構成等效電路圖20。

方案三：選取A—R2—R3—C—R4—D—R5—B為一條獨立支路，再把R1接到AD之間，導線接在C、B之間，如圖21所示，結果仍無法直觀判斷電阻的串并聯關系，所以選取獨立支路時一定要將無阻導線包含進去。

FANUC A03B-0819-C158 

將已知電路中各節點編號，按電勢由高到低的順序依次用1、2、3……數碼標出來(接于電源正極的節點電勢最高，接于電源負極的節點電勢最低，等電勢的節點用同一數碼，并合并為一點)。然后按電勢的高低將各節點重新排布，再將各元件跨接到相對應的兩節點之間，即可畫出等效電路。

例8.畫出圖22所示的等效電路。

解：節點編號：如圖22中所示。

節點排列：將1、23節點依次間隔地排列在一條直線上，如圖23。

元件歸位：對照圖22，將R1、R2、R3、R4分別跨接在排列好的1、2得等效電路如圖24。

十、電表摘補法

若復雜的電路接有電表，在不計電流表A和電壓表V的內阻影響時，由于電流表內阻為零，可摘去用一根無阻導線代替；由于電壓表內阻極大，可摘去視為開路。用上述方法畫出等效電 搞清連接關系后，再把電表補到電路對應的位置上。

例9.如圖25的電路中，電表內阻的影響忽略不計，試畫出它的等效電路。

解：先將電流去，用一根導線代摘替，再摘去電壓表視為開路，得圖26。然后根據圖25把電流表和電壓表補接到電路中的對應位置上，如圖27所示。

FANUC A03B-0819-C158 

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1791    
MFR. PART NUMBER  DESCRIPTION
ALLEN BRADLEY 1791-OA16 I/O BLOCK 120VAC 16 POINT OUTPUT 
ALLEN BRADLEY 1791-OA32 /O BLOCK 120VAC 32 POINT MODULE 
ALLEN BRADLEY 1791-OB16 I/O BLOCK 24VAC 16 POINT OUTPUT 
ALLEN BRADLEY 1791-OB32 I/O BLOCK 24VAC 32 POINT OUTPUT 
ALLEN BRADLEY 1791-16AO I/O BLOCK 120VAC 16 POINT MODULE (16 INPUT) 
ALLEN BRADLEY 1791-16AC I/O BLOCK 120VAC 32 POINT 
ALLEN BRADLEY 1791-16BO BLOCK I/O EXPANSION 24VDC 16 IN SINK RTB 
ALLEN BRADLEY 1791-16BC I/O BLOCK MODULE 24VDC 32 POINT 
ALLEN BRADLEY 1791-24A8 I/O BLOCK 120VAC 32 POINT MODULE 
ALLEN BRADLEY 1791-24AR I/O BLOCK 120VAC 32 POINT MODULE 
ALLEN BRADLEY 1791-24B8 BLOCK I/O, 24V DC, 32 POINT MODULE 
ALLEN BRADLEY 1791-24BR BLOCK I/O, 24V DC, 32 POINT MODULE 
ALLEN BRADLEY 1791-32AO /O BLOCK 120VAC 32 POINT INPUT MODULE 
ALLEN BRADLEY 1791-32BO I/O BLOCK 24V DC 32 POINT MODULE 
ALLEN BRADLEY 1791-8AC I/O BLOCK 120VAC 16 POINT MODULE
ALLEN BRADLEY 1791-8AR I/O BLOCK 120VAC 16 POINT MODULE
ALLEN BRADLEY 1791-8BC I/O BLOCK 24VDC 16 POINT MODULE 
ALLEN BRADLEY 1791-8BR I/O BLOCK 24VDC 16 POINT MODULE 
ALLEN BRADLEY 1791-AIC ISOLATED LINK COUPLER
ALLEN BRADLEY 1791-IOBA I/O BLOCK 24VDC 16 POINT 
ALLEN BRADLEY 1791-IOBB I/O BLOCK 24VDC 16 POINT 
ALLEN BRADLEY 1791-IOBW I/O BLOCK 24VDC 64 PT MODULE 
ALLEN BRADLEY 1791-IOBX I/O BLOCK 24VDC 128POINT MODULE
ALLEN BRADLEY 1791-IOVW I/O BLOCK 24VDC 64 POINT MODULE
ALLEN BRADLEY 1791-IOVX I/O BLOCK 24VDC 128POINT MODULE
ALLEN BRADLEY 1791-N4C2 I/O BLOCK 120VAC 6 POINT ANALOG MODULE 
ALLEN BRADLEY 1791-N4V2 I/O BLOCK 120VAC 6 POINT ANALOG MODULE 
ALLEN BRADLEY 1791-NDC I/O BLOCK 120VAC 6 POINT ANALOG MODULE 
ALLEN BRADLEY 1791-NDV I/O BLOCK 120VAC 6 POINT ANALOG MODULE 
ALLEN BRADLEY 1791-TB2 TERMINAL, 30 POSITION, 10 PCS KIT
ALLEN BRADLEY 1791D-OB16P 24VDC I/O BLOCK 16 OUT SOURCE REMOVABLE TAB 
ALLEN BRADLEY 1791D-OB16PX BLOCK I/O EXPANSION 24VDC 16 OUT SOURCE RTB 
ALLEN BRADLEY 1791D-OV16P 24VDC I/O BLOCK EXPANSION 16 IN SINK RTB 
ALLEN BRADLEY 1791D-OV16PX BLOCK I/O EXPANSION 24VDC 16 OUT SOURCE RTB 
ALLEN BRADLEY 1791D-16BO BLOCK I/O 24VDC 16 IN SINK REMOVABLE TB 
ALLEN BRADLEY 1791D-16BOX 24VDC I/O BLOCK EXPANSION 16 IN SINK RTB 
ALLEN BRADLEY 1791D-16VO BLOCK I/O EXPANSION 24VDC 16 OUT SOURCE RTB 
ALLEN BRADLEY 1791D-16VOX BLOCK I/O EXPANSION 24VDC 16 OUT SOURCE RTB 
ALLEN BRADLEY 1791D-8B8P 24VDC I/O BLOCK 8 IN SINK 8 OUT SOURCE RTB 

 
 
1794    
MFR. PART NUMBER  DESCRIPTION
ALLEN BRADLEY 1794-ACN15 CTRLNET ADAPTER
ALLEN BRADLEY 1794-ACNR15 CTRLNET ADAPTER
ALLEN BRADLEY 1794-AND DEVICENET ADAPTER
ALLEN BRADLEY 1794-ASB I/O ADAPTER
ALLEN BRADLEY 1794-ASB2 I/O ADAPTER
ALLEN BRADLEY 1794-IA16 16 INPUT MODULE
ALLEN BRADLEY 1794-IA8 8 INPUT MODULE
ALLEN BRADLEY 1794-IA8I 8 INPUT MODULE
ALLEN BRADLEY 1794-IB10X0B6 I/O MODULE
ALLEN BRADLEY 1794-IB16 16 INPUT MODULE
ALLEN BRADLEY 1794-IB8 8 INPUT MODULE
ALLEN BRADLEY 1794-IC16 16 INPUT MODULE
ALLEN BRADLEY 1794-ID2 PULSE COUNT MOD
ALLEN BRADLEY 1794-IE4X0E2 I/O MODULE
ALLEN BRADLEY 1794-IE8 8 INPUT MODULE
ALLEN BRADLEY 1794-IF2X0F21 O/I MODULE
ALLEN BRADLEY 1794-IF41 4 INPUT MODULE
ALLEN BRADLEY 1794-IJ2 FREQ INPUT MODULE
ALLEN BRADLEY 1794-IM8 8 INPUT MODULE
ALLEN BRADLEY 1794-IR8 RTD INPUT MOD
ALLEN BRADLEY 1794-IRT8 RTD MODULE
ALLEN BRADLEY 1794-IT8 INPUT MODULE

VARIABLE FREQUENCY DRIVE MOTOR CONTROL LENZE 1HP

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LENZE 70630H1B FNFP 70630H1B

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LENZE E82ZAFSC NEW NIB

Lenze brake rotor 102093:9905 for #10 type brakes

Lenze brake 423191/ 09.07 rotor used on #10 brakes

LENZE EZN 3 A0088H024 FILTER

LENZE EZN 3 A0088H02 MAIN LINE FILTER

LENZE TYPE ENZ 3 A 0055H045 / 398425 MAINS FILTER A

LENZE ENZ 3 A0055H045 MAIN LINE FILTER

LENZE 392 700 TYPE ENZ 3 A0088H024 MAINS FILTER A

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AC TECH Lenze Motor Speed Drive SF103S 1/4 hp

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LENZE 057118-37/1250-G2-4 NSPP 057118371250G24

Lenze 14.630.13.004 Rectifier 1463013004 NEW

LENZE EZN3A1500H003 NSFP EZN3A1500H003

Lenze 630 Braking Chopper Module 340918 6033_G+2C

LENZE E82EV751_2C INVERTER 8200 VECTOR*

NEW FACTORY SEALED Lenze Profibus DP 2133 IB

LENZE EXTERNAL MOTOR

Lenze MAS07C30-BBO Servo Motor

Lenze Brake Resistor ERBM370R150W 370ohm 150w New

NEW Lenze Mains Filter 3 x 400V EZN3A0900H004 NIB NR

Lenze 28.054769 PC Board Keypad

LENZE 057041-EL-22/0800 NSPP 057041EL220800

NEW LENZE TRANSFORMER 141563

LENZE EMZ8272BB.V001 NSFP EMZ8272BBV001

LENZE E82ZBC USPP E82ZBC

 Lenze Servo Motor MOT-PM

LENZE 05704122/800EL USPP 05704122800EL

LENZE EMZ8272BB.V001 NSPP EMZ8272BBV001

Lenze brake rotor 102093:9905 for #10 type brakes

Lenze brake rotor; 95.11 ID-NR141862 for BFK458 size 8

Lenze Hub 20mm bore x .6mm key for #10 Brake

Lenze Rotor; 361815: 99.6 for #6 brake

Lenze Rotor; 361815: 98.10 for #6 brake

LENZE E94ZB40A080A NSFP E94ZB40A080A

LENZE ELN1-0160H017 USPP ELN10160H017

LENZE RFI FILTER TYPE EZF3-050A005

LENZE EZN 3 A 0055H045 DRIVE

LENZE 33.432.24.000 USPP 3343224000

LENZE MDSK SERIES SERVO MOTOR