Csc 162 Calculator

8/4/2019 Csc 162 Calculator

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Easun Reyrolle Limited, India

INPUT DATA for CSC 101 / CSC 162 Relays:

1 Voltage Level (KV)

2 PT Ratio

3 CT Ratio

4 Positive seq. Resistance(R1) / Km

5 Positive seq. Reactance(X1) / Km

6 Zero seq. Resistance(R0) / Km

7 Zero seq. Resistance(X0) / Km

8 Line Length (Km)

9 Maximum Load Current (Primary in A)

10 Operating Power Factor

11 Zone 1 Settings required in %




15 Zero Seq. Mutual Reactance (Xm0)



Fill the following Data

132

1200

600

0.0848

0.4096

0.2338

1.852

7.546

600

0.9

80

150

291

25

0



SETTINGS TO BE ADOPTED

(CT Secondary Rated : 1A, PT Secondary : 110V P-P)

1 KV, CTR, LL ( As It Is)

2 Kr 0.586

3 Kx 1.174

4 Km 0

5 R_Line 0.32

6 X_Line 1.545

7 R1_PE 1.236

8 X1_PE 1.236

9 R2_PE 2.798

10 X2_PE 2.318

11 R3_PE 5.428

12 X3_PE 4.497

13 R4_PE 0.466

14 X4_PE 0.386

15 R1_PP 1.236

16 X1_PP 1.236

17 R2_PP 2.798

18 X2_PP 2.318

19 R3_PP 5.428

20 X3_PP 4.497

21 R4_PP 0.466

22 X4_PP 0.386

23 Max Load Resistance Observed on Ohms 36.99



Note : Select the Resitance Value of the Z3 or Z4 such

that it should be less than the Max. Load Resistance

Calculated

Created By:

G.Mahendiran

Deputy Manager - Product Management

Easun Reyrolle Limited

Hosur, India - 635 126

Moile : +91 99524 25301.

Email : [email protected]

All Rights Reserved to M/s. Eaun Reyrolle Limited., Any

form of Reproduction of this copy is prohibited.



INPUT DATA for CSC 101 / CSC 162 Relays: INPUT

1 Voltage Level (KV) 132

2 PT Ratio 1200

3 CT Ratio 600

4 Positive seq. Resistance(R1) / Km 0.0848

5 Positive seq. Reactance(X1) / Km 0.4096

6 Zero seq. Resistance(R0) / Km 0.2338

7 Zero seq. Resistance(X0) / Km 1.852

8 Line Length (Km) 7.546

9 Maximum Load Current (Primary in A) 600

10 Power Factor 0.9

11 Zone 1 Settings required in % 80




15 Zero Seq. Mutual Reactance (Xm0) 0

Zone 2 Ph-E Fault:

R2_pe 0.4799256

X2_pe 2.3181312

max(x2_pe/2,25/LZ+R_line) 12.8199504

R2_pe derived (as per Manual) 0.4799256

EASUN REYROLLE LIMITED, INDIA



X2_pe Rect 1.1590656

Min(8*X2_Rect, R2_pe/4) 0.1199814

R2_pe Rect 2.3181312

R2_pe to be Set 2.7980568

Zone 2 Ph-Ph Fault:

R2_pp 0.4799256

X2_pp 2.3181312

max(x2_pp/2,15/LZ+R_line) 7.8199504

R2_pp derived (as per Manual) 0.4799256

X2_pp Rect 1.1590656

Min(8*X2_Rect, R2_pp/4) 0.1199814

R2_pp Rect 2.3181312

R2_pp to be Set 2.7980568

Zone 4 Ph-E Fault:

R4_pe 0.0799876

X4_pe 0.3863552

max(x4_pe/2,25/LZ+R_line) 12.8199504


X4_pe Rect 0.1931776

Min(8*X4_Rect, R4_pe/4) 0.0199969

R4_pe Rect 0.3863552

R4_pe to be Set 0.4663428

Zone 4 Ph-Ph Fault:

R4_pp 0.0799876

X4_pp 0.3863552



max(x4_pp/2,15/LZ+R_line) 7.8199504


X4_pp Rect 0.1931776

Min(8*X4_Rect, R4_pp/4) 0.0199969

R4_pp Rect 0.3863552

R4_pp to beSet 0.4663428





R1_pp Rect 1.23633664

R1_pp to be Set 1.23633664

Zone 3 Ph-E Fault:

R3_pe 0.931055664

X3_pe 4.497174528

max(x3_pe/2,25/LZ+R_line) 12.8199504


X3_pe Rect 2.248587264

Min(8*X3_Rect, R3_pe/4) 0.232763916

R3_pe Rect 4.497174528

R3_pe to be Set 5.428230192

Zone 3 Ph-Ph Fault:

R3_pp 0.931055664

X3_pp 4.497174528

max(x3_pp/2,15/LZ+R_line) 7.8199504


X3_pp Rect 2.248587264

Min(8*X3_Rect, R3_pp/4) 0.232763916

R3_pp Rect 4.497174528

R3_pp to be Set 5.428230192

Maximum Load Resistance:

Theta (DEGREES(ACOS(PF))) 25.84193276

Factor = (K re * 0.9) / (K rel * K ss* IL max) 0.000913462



Factor * KV 120.5769231

63.4 - Theta 37.55806724

Sin(63.4 - Theta) / Sin 63.4 0.681722601

Load Resistance Primary 82.20001357

Load Resistance Secondary 41.10000679

90% of Load Resistance 36.99000611

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Csc 162 Calculator