300G_587_387 Testing

(1)

Note: Only enter in yellow Enter calculations protected. Results

E87W1 = Y E87W2 = Y E87W3 = N E87W4 = N W1CT = Y W2CT = Y W3CT = Y W4CT = Y CTR1 = 400 CTR2 = 1000 CTR3 = 120 CTR4 = 120 MVA = 120 VWD1 = 115 VWD2 = 13.8 VWD3 = 41.6 VWD4 = 41.6 TAP1 = 1.51 0.22 TAP2 = 5.02 0.22 TAP3 = 13.88 0.22 TAP4 = 13.88 1 W1CTC = 11 W2CTC = 0 W3CTC = 1 W4CTC = 1 O87P = 0.34 pu SLP1 = 30 % SLP2 = 80 % IRS1 = 3

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

This Test Point is at IRT= 3.3 on SLP2 slope and at 1/2 the required IOP for this IRT point

Enter the following settings

This sheet contains a few portions:

- The first portion provides single phase test information similar to the IM section 10's testing information.

- The second portion provides a balanced three phase test similar to the single phase test described above, this is desired by a few.

- The third part allows simulated relay differential element testing using equivalent relay terminal winding.

- Please note: Not all relay combinations and spreadsheet errors are addressed in this spreadsheet, use only as an aid, and ensure you satisfy yourself that the relay is correct independent of this aid.

- The test sheet is protected without a password, normal operation does not require protection to be off, if defeated take care as hidden cells and indexing etc may be unknowingly be deleted and make the spreadsheet's calculations

incorrect!

SEL-387 Relay Differential Element Testing Aid - H Nurse 3/3/02

Input to Relay's Windings - Phase Relationships

W1 W2 W3 W4

(2)

Select

Test IRT =

3.3

These points are moving up to the SLP2 part of the curve

then start injecting at

IAW1 =

8.47 0 deg

87R1 not asserted

See Test Point 1 on Graph

IAW2 =

13.71 180 deg

and increase IAW1 to

Threshold:

IAW1 =

10.10 0 deg

87R1 asserts

See Test Point 2 on Graph

IAW2 =

13.71 180 deg

for interest

Zero IOP Point is

IAW1 =

7.12 0 deg

See Test Point 3 on Graph

IAW2 =

13.71 180 deg

Select

Test IRT =

3.3 then start injecting at

IAW1 =

4.89 0 deg

See Test Point 1 on Graph

IBW1 =

4.89 -120 deg

ICW1 =

4.89 120 deg

IAW2 =

13.71 150 deg

IBW2 =

13.71 30 deg

ICW2 =

13.71 270 deg

and increase In W1 to

Threshold:

IAW1 =

5.83 0 deg

See Test Point 2 on Graph

IBW1 =

5.83 -120 deg

ICW1 =

5.83 120 deg

IAW2 =

13.71 150 deg

IBW2 =

13.71 30 deg

ICW2 =

13.71 270 deg

for interest

Zero IOP Point is

IAW1 =

4.11 0 deg

See Test Point 3 on Graph

IBW1 =

4.11 -120 deg

ICW1 =

4.11 120 deg

IAW2 =

13.71 150 deg

IBW2 =

13.71 30 deg

ICW2 =

13.71 270 deg

May wish to check that IOP1 = 0 using the Meter Diff command

This Test Point is at IRT= 3.3 and the required IOP

This Test Point is at IRT= 3.3 on SLP2 slope and at 1/2 the required IOP for this IRT point This Test Point is at IRT= 3.3 and zero IOP

This Test Point is at IRT= 3.3 and zero IOP

Part 2: Optional Balanced Three Phase Test to check an 87R pickup point at a predetermined IRT Value

Use 87R to monitor ( 87R = 87R1 + 87R2 +87R3).

(3)

Part 3: Optional Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses.

Input

Mag

Angle [deg] Warnings

IAW1 = 67.00 0.0 IBW1 = 69.00 -120.0 ICW1 = 73.00 120.0 IAW2 = 84.00 150.0 IBW2 = 76.00 30.0 ICW2 = 89.00 270.0

IAW3 = 23.00 150.0 Not Used

IBW3 = 24.00 30.0 Not Used

ICW3 = 29.00 270.0 Not Used

IAW4 = 90.00 150.0 Not Used

IBW4 = 84.00 30.0 Not Used

ICW4 = 81.00 270.0 Not Used

Primary Quantities

If you Inject

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

Graph X Y Y axis 0 0 0 1.668 X axis 0 0 3.96 0 O87P 0 0.34 SLP1 1.13333333 0.34 SLP2 3 0.9 SLP2/SLP1 run out 3.96 1.668

Test Points from Part 3

87R1 0.07 0.10 87R2 0.06 0.10 87R3 0.07 0.10 Breakpoints O87P 1.13333333 0 1.13333333 1.668 SLP1 3 0 3 1.668 IRT-R1 0.07 0 0.07 1.668 IRT-R2 0.06 0 0.06 1.668 IRT-R3 0.07 0 0.07 1.668 Other point Y intercept for SLP2 0 -1.5 0 1.1 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 1 2 IOP

(12)

SLP1 and O87p intercept point 1.13333333 0.34

SLP1 and SLP2 intercept point 3 0.9

SLP1 X val @ SLP2 intersects O87P 2.3 0.69

SLP1 at limit of graph 3.96 1.188 Overall Characteristic 0 0.34 Break 1 1.13333333 0.34 Break 2 3 0.9 end 3.96 1.668

Part 1 Test values

Test 3 2.73 0.00

Test 1 2.99 0.52

Test 2 3.30 1.14

3.564 1.668

Part 2 Test values

Test 3 2.73 0.00 Test 1 2.99 0.52 Test 2 3.30 1.14 3.564 1.668 Vector Display W1 0 0 0 1 W2 0 0 0.5 0.866025404 330 W3 0 0 0 0 300 W4 0 0 0 0 300 Extremes 1 1 -1 1 -1 -1 1 -1 Grid 0 0 0.5 0.866025404 0 0 0.8660254 0.5 0 0 1 6.12574E-17 0 0 0.8660254 -0.5 0 0 0.5 -0.8660254 0 0 1.2251E-16 -1 0 0 -0.5 -0.8660254 0 0 -0.8660254 -0.5 1.1 0 0 1 2

(13)

0 0 -1 -1.8377E-16 0 0 -0.8660254 0.5 0 0 -0.5 0.866025404

(14)

Minimum Maximum

0.67 37.65

0.21 11.29

0.67 11.29

Lowest Test Values are between IAW1 and IAW2

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

Calculated TAP Limits

incorrect!

SEL-387 Relay Differential Element Testing Aid - H Nurse 3/3/02

1.1 3.0

0.34

(15)

These points are moving up to the SLP2 part of the curve Test IRT =

3.3

87R1 not asserted IAW1 =

8.47 0 deg

IAW2 =

13.71 180 deg

IAW1 =

10.10 0 deg

IAW2 =

13.71 180 deg

7.12 0 deg

IAW2 =

13.71 180 deg

These points are moving up to the SLP2 part of the curve This Test Point is at IRT= 3.3 and the required IOP

Part 2: Optional Balanced Three Phase Test to check an 87R pickup point at a predetermined IRT Value

Use 87R to monitor ( 87R = 87R1 + 87R2 +87R3).

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

1.1 3.0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 2 4 6 IOP IRT O87P SLP1 SLP2 Test 1 Test 2 Test 3 Overall Test Trajector y 1.1 3.0

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

0

1

2

3

4

5 IOP

IRT

O87P SLP1 SLP2 Test 1 Test 2 Test 3 Overall Test Trajectory

(16)

Part 3: Optional Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses.

Element

87R1 87R2 87R3 87R

Operate

IOP1

IOP2

IOP3

0.10

0.10 Restraint

IRT1

IRT2

IRT3

0.07

0.06

0.07 Ratio=

149.7 152.7 147.7 %

On Curve O87P O87P O87P

P/U Status

You will get (Using MET DIF command ).

1.1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 1 2 IOP

0

1

2

3

4

5

(17)

(18)

(19)

(20)

(21)

(22)

(23)

(24)

3.0 2 3 4 5 O87P SLP1 SLP2 87R1 87R2 87R3 Overall IRT-R1 IRT-R2 IRT-R3

(25)

3.0

2 3 4 5

(26)

(27)

(28)

Winding 2 to Winding 3 IAW2 =

error

0 deg

IAW3 =

error

#VALUE!

IAW2 =

error

0 deg

IAW3 =

error

#VALUE!

IAW2 =

error

0 deg

IAW3 =

error

#VALUE!

Or Select the windings you want

16.30 0 deg

IBW2 =

16.30 -120 deg

ICW2 =

16.30 120 deg

IAW3 =

4.11 150 deg

IBW3 =

4.11 30 deg

ICW3 =

4.11 270 deg

IAW2 =

19.43 0 deg

IBW2 =

19.43 -120 deg

ICW2 =

19.43 120 deg

IAW3 =

4.11 150 deg

IBW3 =

4.11 30 deg

ICW3 =

4.11 270 deg

IAW2 =

13.71 0 deg

IBW2 =

13.71 -120 deg

ICW2 =

13.71 120 deg

IAW3 =

4.11 150 deg

IBW3 =

4.11 30 deg

ICW3 =

4.11 270 deg

(29)

3.0 3 4 5 IRT O87P SLP1 SLP2 87R1 87R2 87R3 Overall IRT-R1 IRT-R2 IRT-R3

(30)

(31)

(32)

(33)

(34)

(35)

(36)

(37)

(38)

(39)

(40)

(41)

Valid

IAW1 =

8.47 IAW2 =

13.71 IAW1 =

10.10 IAW2 =

13.71

Lowest

IAW1 =

7.12 IAW2 =

13.71

(42)

(43)

(44)

(45)

(46)

(47)

(48)

(49)

(50)

(51)

(52)

(53)

(54)

Valid

IAW1 =

8.47 IAW1 =

8.47 IAW2 =

16.30 IAW2 =

IAW3 =

7.12 IAW4 =

7.12 IAW1 =

7.12 IAW3 =

7.12 IAW4 =

IAW1 =

10.10 IAW1 =

10.10 IAW2 =

19.43 IAW2 =

IAW3 =

7.12 IAW4 =

7.12 IAW1 =

7.12 IAW3 =

7.12 IAW4 =

IAW1 =

7.12 IAW1 =

7.12 IAW2 =

13.71 IAW2 =

(55)

(56)

(57)

(58)

(59)

(60)

(61)

(62)

(63)

(64)

(65)

(66)

(67)

16.30 IAW3 =

8.47 IAW3 =

8.47 IAW4 =

8.47

7.12 IAW1 =

7.12 IAW2 =

13.71 IAW4 =

7.12 IAW1 =

7.12

19.43 IAW3 =

10.10 IAW3 =

10.10 IAW4 =

10.10

7.12 IAW1 =

7.12 IAW2 =

13.71 IAW4 =

7.12 IAW1 =

7.12

Lowest

13.71 IAW3 =

7.12 IAW3 =

7.12 IAW4 =

7.12

(68)

(69)

(70)

(71)

(72)

(73)

(74)

(75)

(76)

(77)

(78)

(79)

(80)

IAW4 =

8.47 IAW4 =

8.47 IAW2 =

13.71 IAW3 =

7.12 IAW4 =

10.10 IAW4 =

10.10 IAW2 =

13.71 IAW3 =

7.12

Lowest

IAW4 =

7.12 IAW4 =

7.12 IAW2 =

13.71 IAW3 =

7.12

(81)

(82)

E87W1 = Y E87W2 = Y E87W3 = N E87W4 = N W1CT = Y W2CT = Y W3CT = Y W4CT = Y CTR1 = 200 CTR2 = 800 CTR3 = 120 CTR4 = 120 MVA = 10 VWD1 = 132 VWD2 = 33 VWD3 = 41.6 VWD4 = 41.6 TAP1 = 0.22 0.22 TAP2 = 0.22 0.22 TAP3 = 1.16 0.22 TAP4 = 1.16 1 W1CTC = 12 W2CTC = 12 W3CTC = 1 W4CTC = 1 O87P = 0.48 pu SLP1 = 40 % SLP2 = 40 % IRS1 = 3 This sheet contains a few portions:

incorrect!

SEL-387 Relay Differential Element Testing Aid - H Nurse 3/3/02

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

This Test Point is at IRT= 2 on SLP1 slope and at 1/2 the required IOP for this IRT point

Enter the following settings

W1 W2 W3 W4

(83)

Select

Test IRT =

2 then start injecting at

IAW1 =

0.64 0 deg

See Test Point 1 on Graph

IAW2 =

0.52 180 deg

and increase IAW1 to

Threshold:

IAW1 =

0.79 0 deg

87R1 asserts

See Test Point 2 on Graph

IAW2 =

0.52 180 deg

for interest

Zero IOP Point is

IAW1 =

0.52 0 deg

See Test Point 3 on Graph

IAW2 =

0.52 180 deg

Select

Test IRT =

3.5 then start injecting at

IAW1 =

0.75 0 deg

See Test Point 1 on Graph

IBW1 =

0.75 -120 deg

ICW1 =

0.75 120 deg

IAW2 =

0.61 180 deg

IBW2 =

0.61 60 deg

ICW2 =

0.61 300 deg

and increase In W1 to

Threshold:

IAW1 =

0.92 0 deg

See Test Point 2 on Graph

IBW1 =

0.92 -120 deg

ICW1 =

0.92 120 deg

IAW2 =

0.61 180 deg

IBW2 =

0.61 60 deg

ICW2 =

0.61 300 deg

for interest

Zero IOP Point is

IAW1 =

0.61 0 deg

See Test Point 3 on Graph

IBW1 =

0.61 -120 deg

ICW1 =

0.61 120 deg

IAW2 =

0.61 180 deg

IBW2 =

0.61 60 deg

ICW2 =

0.61 300 deg

This Test Point is at IRT= 3.5 on SLP1 slope and at 1/2 the required IOP for this IRT point This Test Point is at IRT= 2 and zero IOP

Part 2: Optional Balanced Three Phase Test to check an 87R pickup point at a predetermined IRT Value

Use 87R to monitor ( 87R = 87R1 + 87R2 +87R3).

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

(84)

Part 3: Optional Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses.

Input

Mag

Angle [deg] Warnings

IAW1 = 4.00 0.0 Thermal IBW1 = 69.00 -120.0 Thermal ICW1 = 73.00 120.0 Thermal IAW2 = 84.00 150.0 Thermal IBW2 = 76.00 30.0 Thermal ICW2 = 89.00 270.0 Thermal

IAW3 = 23.00 150.0 Not Used

IBW3 = 24.00 30.0 Not Used

ICW3 = 29.00 270.0 Not Used

IAW4 = 90.00 150.0 Not Used

IBW4 = 84.00 30.0 Not Used

ICW4 = 81.00 270.0 Not Used

May wish to check that IOP1 = 0, IOP2 =0 and IOP3 =0 using the Meter Diff command

Secondary Quantities

If you Inject

(85)

(86)

(87)

(88)

(89)

(90)

(91)

(92)

Graph X Y Y axis 0 0 0 1.68 X axis 0 0 4.2 0 O87P 0 0.48 SLP1 1.2 0.48 SLP2 1.2 0.48 SLP2/SLP1 run out 4.2 1.68

87R1 251.36 284.37 87R2 323.80 271.60 87R3 342.24 122.14 Breakpoints O87P 1.2 0 1.2 1.68 SLP1 1.2 0 1.2 1.68 IRT-R1 251.36 0 251.36 1.68 IRT-R2 323.80 0 323.80 1.68 IRT-R3 342.24 0 342.24 1.68 Other point Y intercept for SLP2 0 0 01.2 1.2 50 100 150 200 250 300 0 100

(93)

SLP1 and SLP2 intercept point 1.2 0.48

SLP1 X val @ SLP2 intersects O87P 1.2 0.48

SLP1 at limit of graph 4.2 1.68 Overall Characteristic 0 0.48 Break 1 1.2 0.48 Break 2 1.2 0.48 end 4.2 1.68

Part 1 Test values

Test 3 1.60 0.00

Test 1 1.78 0.36

Test 2 2.00 0.80

2.44 1.68

Part 2 Test values

Test 3 2.80 0.00 Test 1 3.11 0.62 Test 2 3.50 1.40 3.64 1.68 Vector Display W1 0 0 0 1 W2 0 0 0 1 0 W3 0 0 0 0 330 W4 0 0 0 0 330 Extremes 1 1 -1 1 -1 -1 1 -1 Grid 0 0 0.5 0.866025404 0 0 0.8660254 0.5 0 0 1 6.12574E-17 0 0 0.8660254 -0.5 0 0 0.5 -0.8660254 0 0 1.2251E-16 -1 0 0 -0.5 -0.8660254 0 0 -0.8660254 -0.5 1.2 1.2 0 0 100

(94)

0 0 -1 -1.8377E-16 0 0 -0.8660254 0.5 0 0 -0.5 0.866025404

(95)

Minimum Maximum

0.03 1.64

incorrect!

SEL-387 Relay Differential Element Testing Aid - H Nurse 3/3/02

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

Calculated TAP Limits

1.2 1.2 0.48 0.48

(96)

These points are moving up to the SLP1 part of the curve Test IRT =

2

0.64 0 deg

IAW2 =

0.52 180 deg

IAW1 =

0.79 0 deg

IAW2 =

0.52 180 deg

0.52 0 deg

IAW2 =

0.52 180 deg

Part 2: Optional Balanced Three Phase Test to check an 87R pickup point at a predetermined IRT Value

Use 87R to monitor ( 87R = 87R1 + 87R2 +87R3).

Where multi winding are enables you may wish to select the test giving the lowest required test currents.

This Test Point is at IRT= 2 and the required IOP

1.2 1.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 0 2 4 6 IOP IRT O87P SLP1 SLP2 Test 1 Test 2 Test 3 Overall Test Trajector y 1.2 1.2

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

0

1

2

3

4

5 IOP

IRT

(97)

Part 3: Optional Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses.

Element

87R1 87R2 87R3 87R

Operate

IOP1

IOP2

IOP3

284.37

271.60

122.14 Restraint

IRT1

IRT2

IRT3

251.36

323.80

342.24 Ratio=

113.1 83.9 35.7 %

On Curve SLP2 SLP2 SLP2

P/U Status 87R1 - SLP2 87R2 - SLP2

87R

You will get (Using MET DIF command ).

1.2 1.2 0 50 100 150 200 250 300 0 100 200

0

1

2

3

4

5

(98)

(99)

(100)

(101)

(102)

(103)

(104)

(105)

200 300 400 O87P SLP1 SLP2 87R1 87R2 87R3 Overall IRT-R1 IRT-R2 IRT-R3

(106)

(107)

(108)

(109)

error

0 deg

IAW3 =

error

#VALUE!

IAW2 =

error

0 deg

IAW3 =

error

#VALUE!

IAW2 =

error

0 deg

IAW3 =

error

#VALUE!

Or Select the windings you want

0.75 0 deg

IBW2 =

0.75 -120 deg

ICW2 =

0.75 120 deg

IAW3 =

0.61 150 deg

IBW3 =

0.61 30 deg

ICW3 =

0.61 270 deg

IAW2 =

0.92 0 deg

IBW2 =

0.92 -120 deg

ICW2 =

0.92 120 deg

IAW3 =

0.61 150 deg

IBW3 =

0.61 30 deg

ICW3 =

0.61 270 deg

IAW2 =

0.61 0 deg

IBW2 =

0.61 -120 deg

ICW2 =

0.61 120 deg

IAW3 =

0.61 150 deg

IBW3 =

0.61 30 deg

ICW3 =

0.61 270 deg

(110)

300 400 O87P SLP1 SLP2 87R1 87R2 87R3 Overall IRT-R1 IRT-R2 IRT-R3

(111)

(112)

(113)

(114)

(115)

(116)

(117)

(118)

(119)

(120)

(121)

(122)

Valid

IAW1 =

0.64 IAW2 =

0.52 IAW1 =

0.79 IAW2 =

0.52

Lowest

IAW1 =

0.52 IAW2 =

0.52

(123)

(124)

(125)

(126)

(127)

(128)

(129)

(130)

(131)

(132)

(133)

(134)

(135)

Valid

IAW1 =

0.64 IAW1 =

0.64 IAW2 =

0.74 IAW2 =

0.64 IAW2 =

IAW3 =

0.61 IAW4 =

0.61 IAW1 =

0.52 IAW3 =

0.61 IAW4 =

IAW1 =

0.79 IAW1 =

0.79 IAW2 =

IAW3 =

0.61 IAW4 =

0.61 IAW1 =

0.52 IAW3 =

0.61 IAW4 =

Lowest Lowest Lowest Lowest

IAW1 =

0.52 IAW1 =

0.52 IAW2 =

0.45 IAW2 =

0.52 IAW2 =

(136)

(137)

(138)

(139)

(140)

(141)

(142)

(143)

(144)

(145)

(146)

(147)

(148)

0.64 IAW3 =

0.74 IAW3 =

0.74 IAW4 =

0.74

0.61 IAW1 =

0.52 IAW2 =

0.52 IAW4 =

0.61 IAW1 =

0.52

0.79 IAW3 =

0.91 IAW3 =

0.91 IAW4 =

0.91

0.61 IAW1 =

0.52 IAW2 =

0.52 IAW4 =

0.61 IAW1 =

0.52

Lowest

0.52 IAW3 =

0.61 IAW3 =

0.61 IAW4 =

0.61

(149)

(150)

(151)

(152)

(153)

(154)

(155)

(156)

(157)

(158)

(159)

(160)

(161)

IAW4 =

0.74 IAW4 =

0.74 IAW2 =

0.52 IAW3 =

0.61 IAW4 =

0.91 IAW4 =

0.91 IAW2 =

0.52 IAW3 =

0.61 IAW4 =

0.61 IAW2 =

0.52 IAW3 =

0.61

(162)

(163)

MVA = 66 VWDG1 = 131 VWDG2 = 13.8 TRCON = DACY CTCON = yy RZS = y 387 equivalent W1CT = Y 387 equivalent W2CT = Y CTR1 = 60 CTR2 = 600 TAP1 = 4.85 2 TAP2 = 4.60 3 387 equivalent W1CTC = 12 387 equivalent W2CTC = 11 O87P = 0.3 pu SLP1 = 30 % SLP2 = 60 % IRS1 = 3

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

IM calculations indicate a test IRT = 2.00

Select

Test IRT =

2.00

This point is on the SLP1 part of the curve

then start injecting at

IAW1 =

14.37 0 deg

See Test Point 1 on Graph

IAW2 =

13.55 180 deg

and increase IAW1 to

Threshold:

IAW1 =

16.73 0 deg

87R1 asserts

See Test Point 2 on Graph

IAW2 =

13.55 180 deg

for interest

Zero IOP Point is

IAW1 =

12.36 0 deg

See Test Point 3 on Graph

IAW2 =

13.55 180 deg

Part 2: Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses

This Test Point is at IRT= 2 and zero IOP

Enter the following settings

This sheet contains two portions:

- The second part allows simulated relay differential element testing using equivalent relay terminal winding injected currents, the expected IOP and IRES for each 87R element is shown.

- Please note: not all relay combinations and errors are addressed in this spreadsheet, use only as an aid, and ensure you satisfy yourself that the relay is correct independent of this aid.

- For ACB phase rotation, exchange the IB and IC current as entered into part 2

SEL-587 Relay Differential Element Testing Aid - H Nurse 9/24/01

Warning thermal rating of relay exceed, take care with test time

1.0 3.0

0.3

(164)

Input

Mag

Angle [deg] Warnings

IAW1 = 222.00 0.0 Thermal IBW1 = 0.00 120.0 ICW1 = 0.00 245.0 IAW2 = 0.00 180.0 IBW2 = 0.00 271.9 ICW2 = 0.00 31.0

If you Inject

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0 1.0 0.0 0.0 1.0 0.0 1.0 0.0 0.0 0.0 1.0 1 0.6 -0.6 0.0 1.7 0.0 0.6 -0.6 -0.6 0.0 0.6 2 0.3 -0.7 0.3 1.5 0.3 0.3 -0.7 -0.7 0.3 0.3 3 0.0 -0.6 0.6 1.7 0.6 0.0 -0.6 -0.6 0.6 0.0 4 -0.3 -0.3 0.7 1.5 0.7 -0.3 -0.3 -0.3 0.7 -0.3 5 -0.6 0.0 0.6 1.7 0.6 -0.6 0.0 0.0 0.6 -0.6 6 -0.7 0.3 0.3 1.5 0.3 -0.7 0.3 0.3 0.3 -0.7

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7 -0.6 0.6 0.0 1.7 0.0 -0.6 0.6 0.6 0.0 -0.6 8 -0.3 0.7 -0.3 1.5 -0.3 -0.3 0.7 0.7 -0.3 -0.3 9 0.0 0.6 -0.6 1.7 -0.6 0.0 0.6 0.6 -0.6 0.0 10 0.3 0.3 -0.7 1.5 -0.7 0.3 0.3 0.3 -0.7 0.3 11 0.6 0.0 -0.6 1.7 -0.6 0.6 0.0 0.0 -0.6 0.6 12 0.7 -0.3 -0.3 1.5 -0.3 0.7 -0.3 -0.3 -0.3 0.7 Graph

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X Y Y axis 0 0 0 1.26 X axis 0 0 3.6 0 O87P 0 0.3 SLP1 1 0.3 SLP2 3 0.9 SLP2/SLP1 run out 3.6 1.26

87R1 15.26 30.53 87R2 7.63 15.26 87R3 7.63 15.26 Breakpoints O87P 1 0 1 1.26 SLP1 3 0 3 1.26 IRT-R1 0.00 0 0.00 1.26 IRT-R2 0.00 0 0.00 1.26 IRT-R3 0.00 0 0.00 1.26 Other point Y intercept for SLP2 0 -0.9

SLP1 and O87p intercept point 1 0.3

SLP2 and O87p intercept point 2 0.3

SLP1 and SLP2 intercept point 3 0.9

SLP1 X val @ SLP2 intersects O87P 2 0.6

SLP1 at limit of graph 3.6 1.08 Overall Characteristic 0 0.3 Break 1 1 0.3 Break 2 3 0.9 end 3.6 1.26

Part 1 Test values

Test 3 1.70 0.00

Test 1 1.84 0.28

Test 2 2.00 0.60

2.33 1.26

Part 2 Test values

Test 3 1.70 0.00

Test 1 1.84 0.28

Test 2 2.00 0.60

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Vector Display W1 0 0 0 1 W2 0 0 -0.5 0.866025404 30 Grid 0 0 0.5 0.866025404 0 0 0.866025 0.5 0 0 1 6.12574E-17 0 0 0.866025 -0.5 0 0 0.5 -0.8660254 0 0 1.23E-16 -1 0 0 -0.5 -0.8660254 0 0 -0.866025 -0.5 0 0 -1 -1.8377E-16 0 0 -0.866025 0.5 0 0 -0.5 0.866025404

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0.67 13.5

0.45 9

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

This point is on the SLP1 part of the curve

Part 2: Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses

This Test Point is at IRT= 2 and the required IOP This sheet contains two portions:

- The second part allows simulated relay differential element testing using equivalent relay terminal winding injected currents, the expected IOP and IRES for each 87R element is shown.

- For ACB phase rotation, exchange the IB and IC current as entered into part 2

SEL-587 Relay Differential Element Testing Aid - H Nurse 9/24/01

TAP Limits

1.0 3.0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 1 2 3 4 IOP IRT O87P SLP1 SLP2 Test 1 Test 2 Test 3 Overall Test Trajector y 3.0 0.9

W1 W2

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Element

87R1 87R2 87R3 87R

Operate

IOP1

IOP2

IOP3

148.00

74.00

74.00 Restraint

IRT1

IRT2

IRT3

74.00

37.00

37.00 Ratio=

200.0 200.0 200.0 %

On Curve SLP2 SLP2 SLP2

P/U Status 87R1 - SLP2 87R2 - SLP2 87R3 - SLP2 87R

You will get (Using MET DIF command ).

Note: These values are referred to Winding 1

1.0 3.0 0 5 10 15 20 25 30 35 0 5 10 IOP

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W1 0.7 -0.3 -0.3 1.5 -0.3 0.7 -0.3 -0.3 -0.3 0.7 W2 0.6 0.0 -0.6 1.7 -0.6 0.6 0.0 0.0 -0.6 0.6 W3 0.6 -0.6 0.0 1.7 0.0 0.6 -0.6 -0.6 0.0 0.6 W4 0.6 -0.6 0.0 1.7 0.0 0.6 -0.6 -0.6 0.0 0.6

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10 15 20 IRT O87P SLP1 SLP2 87R1 87R2 87R3 Overall IRT-R1 IRT-R2 IRT-R3

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E87 = t CTR = 1750 CTRD = 400 PTR = 100 VNOM = 110 INOM = 0.9 VWDGD = 220

TRCON = DABY Looking from the generator into the TX

CTCON = Y For the Differential CT inputs

587/387 equivalent MVA = 30.01 587/387 equivalent VWDG1 = 11 587 equivalent CTCON = YY 587 equivalent RZS = N 387 equivalent W1CT = Y 387 equivalent W2CT = Y TAP1 = 0.90 3.5 TAPD = 0.20 3.5 387 equivalent W1CTC = 0 387 equivalent W2CTC = 1 O87P = 2 pu

SLP1 = 25 % SLP1 not effective, SLP2 dominant, see graph to assist

SLP2 = 40 %

IRS1 = 3

Part 1: Single Phase Test to check an 87R1 pickup point at a predetermined IRT Value, use 87R1 to monitor.

Select

Test IRT =

4

This point is on the O87 part of the curve

then start injecting at

IA =

3.60 0 deg

See Test Point 1 on Graph

IA87 =

1.02 180 deg

and increase IA to

Threshold:

IA =

4.50 0 deg

87R1 asserts

See Test Point 2 on Graph

IA87 =

1.02 180 deg

for interest

Enter the following settings

This sheet contains two portions:

- The first portion provides single phase test information similar to the IM section 10's testing information. - The second part allows simulated relay differential element testing using equivalent relay terminal winding.

SEL-300G Relay Differential Element Testing Aid - H Nurse 12/26/01

Please email any suggestion or comments to [email protected]

This Test Point is at IRT= 4 on O87 slope and at 1/2 the required IOP for this IRT point 3.0

3.0 2

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Zero IOP Point is

IA =

2.70 0 deg

See Test Point 3 on Graph

IA87 =

1.02 180 deg

Part 2: Multiphase and multiwinding testing with expected relay element operate, restraint values and 87 element responses

Input

Mag

Angle [deg] Warnings

IA = 18.00 0.0 Thermal IB = 0.00 0.0 IC = 0.00 0.0 IA87 = 10.94 180.0 IB87 = 0.00 180.0 IC87 = 0.00 120.0

If you Inject

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