relay setting chart
DESCRIPTION
Relay Setting ChartTRANSCRIPT
CLIENT M/s. KWALE INTERNATIONAL SUGAR COMPANY LTD, KENYA
CONSULTANT M/s. JP MUKHERJI & ASSOCIATES PVT LTD, PUNE, MH
EPC CONTRACTOR M/s. ISGEC HEAVY ENGINEERING LTD, NOIDA, UP
PROJECT 1x18 MW CO-GEN POWER PLANT
DOCUMENT TITLE RELAY SETTING CHART FOR 33KV SWITCHYARD
DOCUMENT NO. IKE-ISGEC-KWL61-DOC-233
REVISION 00
DATE 11.10.2013
NO. OF SHEETS PREPARED BY CHECKED BY APPROVED BY
ARD KBD ABH
EPC ELECTRICAL CONTRACTOR IKE ELECTRIC PVT. LTD.
601 - 602, MARIEGOLD NECO GARDENS,VIMAN NAGAR,PUNE - 411 014MAHARASHTRAINDIAPHONE - 020 - 66290300 / 301TELEFAX - 020 - 66290302
**Sheets (Including Title Sheet)
PREPARED BY: ARD1 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 33KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting Remarks
I 33KV Transformer Control and Relay Panel
1 87GT, 64R, 99 Numerical Transformer MICOM P 632 Differential Protection (87GT)
Protection Relay Idiff>=0.1-2.5 Iref Idiff>:0.1 LV: CTR: 500/1A
Idiff>=2.5-30 Iref HV: CTR: 200/1 A
Idiff>>>=2.5-30 Iref NCTR: *** A
m1: 0.15-1.5 m1: 0.2
m2: 0.15-1.5 m2: 0.7
IR,m2 (1.5-10.0 Iref) 4
Op.del, trip signal:0-100S
Restricted earthfault protection(64R)
Effective setting: 10% 10%In
High Impedance relay NCTR: *** A
Stabilising resistor
(0-1000) Ohm Rst: 200 ohm
2 50/51 Numerical MICOM P341 Overcurrent protection (51) IDMT 50N/51N Interconnection In: 0.08-4In 0.75*In characterictics67/67N, 50LBB Protection Relay T: 0-100 sec 0.1 sec 3 Sec Curve78, 27Z, 59, 8160, 81R, 99, 27 Inst. Overcurrent protection (50)
In: 0.08-32In 6*In CTR: 200/1AT: 0-100 sec 0 sec (Inst) PTR: 33KV/110V
Earth fault protection (51N) IDMT Ie: 0.08-4In 0.2*In charactericticsT: 0-100 sec 0.1 Sec 3 Sec Curve
Inst.Earth fault protection (50N) Ie: 0.08-4In 0.3*InT: 0-100 sec 0.5 sec
PREPARED BY: ARD2 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 33KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksDir. Overcurrent protection (67)In: 0.08-32In 0.75*In RCA: 30 degT: 0-100 sec 0.35 sec
Dir. Earth fault protection (67N)Ie: 0.08-32In 0.1*In RCA: 45 degT: 0-100 sec 0.35 sec
Under volatge protection (27)U<: 10-120V 80 VT: 0-100 sec 2 sec
Over voltage protection (59)U>: 60-185V 121 VT: 0-100 sec 3 sec
Under frequency protection (81U)f<: 45-65Hz 47.7 Hz PTR: 33KV/110VT: 0-100 sec 2 sec
Over frequency protection (81O)f>: 45-65Hz 52 HzT: 0-100 sec 2 sec
Local Breaker back-up protection (50LBB)In: 0.4-4*In 1*In CTR: 200/1ATime delay 0.3 sec
df/dt protection (81R)df/dt: 0.1-10Hz/sec 4 Hz/ secT: 0-100 sec Inst Inst
PREPARED BY: ARD3 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 33KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksDead band lower frequency45-65Hz 49 Hz
Dead band upper frequency45-65Hz 51 Hz
Voltage Balance Relay (60)******
Overfluxing Protection Relay (99)******
Vector surge protection (78)dv/dt: 2-30 deg 7 deg
Standby Earth fault protection (51G) Ie: 0.08-4In 0.3 * In CTR: 200/1 AT: 0-100 sec 0.3 Sec IDMT curve (3 sec)
3 50/51 Numerical MICOM P111L IDMT overcurrent protection (51)
50N/51N protection relay In: 0.08-4In 0.9 * In
(LV side of GT) TMS: 0.025-1 0.1 Sec IDMT curve (3 sec)
Inst. Overcurrent protection (50)In: 0.08-32In 6 * In CTR: 500 / 1 AT: 0-100 sec 0 Sec PTR: 11kV / 110 V
PREPARED BY: ARD4 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 33KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksIDMT Earth fault protection (51N)Ie: 0.08-4In 0.2 * In IDMT curve (3 sec)TMS: 0.1-1 0.3 Sec
Inst.Earth fault protection (50N) Ie: 0.08-4In 0.3 * InT: 0-100 sec 0.3 Sec
4 27, 59 Numerical MICOM P921 Under voltage protection (27)59D protection relay U<: 10-120V 0.8
T: 0-100 sec 0.5 sec
Over voltage protection (59)U>: 60-185V 1.1T: 0-100 sec 0.5 sec
Neutral displacement protection (59DLV)V: 5.4 -20V 5.4 VTMS 0.1 sec
NOTE: a) All settings are referred with respect to secondary values.
b) All the other functions which are not mentioned in this chart shall be disabled.
CLIENT M/s. KWALE INTERNATIONAL SUGAR COMPANY LTD, KENYA
CONSULTANT M/s. JP MUKHERJI & ASSOCIATES PVT LTD, PUNE, MH
EPC CONTRACTOR M/s. ISGEC HEAVY ENGINEERING LTD, NOIDA, UP
PROJECT 1x18 MW CO-GEN POWER PLANT
DOCUMENT TITLE RELAY SETTING CHART FOR 132KV SWITCHYARD
DOCUMENT NO. IKE-ISGEC-KWL61-DOC-133
REVISION 00
DATE 11.10.2013
NO. OF SHEETS PREPARED BY CHECKED BY APPROVED BY
ARD KBD ABH
EPC ELECTRICAL CONTRACTOR IKE ELECTRIC PVT. LTD.
601 - 602, MARIEGOLD NECO GARDENS,VIMAN NAGAR,PUNE - 411 014MAHARASHTRAINDIAPHONE - 020 - 66290300 / 301TELEFAX - 020 - 66290302
**Sheets (Including Title Sheet)
PREPARED BY: ARD1 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 132KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting Remarks
I 132KV Transformer Control and Relay Panel
1 87GT, 64R, 99 Numerical Transformer MICOM P 632 Differential Protection (87GT)
Protection Relay Idiff>=0.1-2.5 Iref Idiff>:0.1 LV: CTR: 1500/1A
Idiff>=2.5-30 Iref HV: CTR: 150/1 A
Idiff>>>=2.5-30 Iref NCTR: *** A
m1: 0.15-1.5 m1: 0.2
m2: 0.15-1.5 m2: 0.7
IR, m2 (1.5-10.0 Iref) 4
Op.del, trip signal:0-100S
Restricted earthfault protection(64R)
Effective setting: 10% 10%In
High Impedance relay NCTR: *** A
Stabilising resistor
(0-1000) Ohm Rst:200 ohm
2 50/51 Numerical MICOM P341 Overcurrent protection (51) IDMT 50N/51N Interconnection In: 0.08-4In 0.75*In characterictics67/67N, 50LBB Protection Relay T: 0-100 sec 0.1 3 Sec Curve78, 27Z, 59, 8160, 81R, 99, 27 Inst. Overcurrent protection (50)
In: 0.08-32In 6*In CTR: 150/1AT: 0-100 sec 0 sec (Inst) PTR: 132KV/110V
Earth fault protection (51N) IDMT Ie: 0.08-4In 0.2*In charactericticsT: 0-100 sec 0.1 Sec 3 Sec Curve
Inst.Earth fault protection (50N) Ie: 0.08-4In 0.3*InT: 0-100 sec 0.5 sec
PREPARED BY: ARD2 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 132KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksDir. Overcurrent protection (67)In: 0.08-32In 0.75*In RCA: 30 degT: 0-100 sec 0.35 sec
Dir. Earth fault protection (67N)Ie: 0.08-32In 0.1*In RCA: 45 degT: 0-100 sec 0.35 sec
Under volatge protection (27)U<: 10-120V 80 VT: 0-100 sec 2 sec
Over voltage protection (59)U>: 60-185V 121 VT: 0-100 sec 3 sec
Under frequency protection (81U)f<: 45-65Hz 47.7 Hz PTR: 132KV/110VT: 0-100 sec 2 sec
Over frequency protection (81O)f>: 45-65Hz 52 HzT: 0-100 sec 2 sec
Local Breaker back-up protection (50LBB)In: 0.4-4*In 1*In CTR: 150/1ATime delay 0.3 sec
df/dt protection (81R)df/dt: 0.1-10Hz/sec 4 Hz/ secT: 0-100 sec Inst
PREPARED BY: ARD3 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 132KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksDead band lower frequency45-65Hz 49 Hz
Dead band upper frequency45-65Hz 51 Hz
Voltage Balance Relay (60)******
Overfluxing Protection Relay (99)******
Vector surge protection (78)dv/dt: 2-30 deg 7 deg
Standby Earth fault protection (51G) Ie: 0.08-4In 0.3 * In CTR: 150/1 AT: 0-100 sec 0.3 Sec IDMT curve (3 sec)
3 50/51 Numerical MICOM P111L IDMT overcurrent protection (51)
50N/51N protection relay In: 0.08-4In 0.7 * In
(LV side of GT) TMS: 0.025-1 0.1 Sec IDMT curve (3 sec)
Inst. Overcurrent protection (50)In: 0.08-32In 6 * In CTR: 1500 / 1 AT: 0-100 sec 0 Sec PTR: 11kV / 110 V
PREPARED BY: ARD4 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 132KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting RemarksIDMT Earth fault protection (51N)Ie: 0.08-4In 0.2 * In IDMT curve (3 sec)TMS: 0.1-1 0.3 Sec
Inst.Earth fault protection (50N) Ie: 0.08-4In 0.3 * InT: 0-100 sec 0.3 Sec
4 50/51 Numerical MICOM P127 IDMT overcurrent protection (51)
50N/51N protection relay In: 0.08-4In 0.7 * In
(HV side of GT) TMS: 0.025-1 0.1 Sec IDMT curve (3 sec)
Inst. Overcurrent protection (50)In: 0.08-32In 6 * In CTR: 1500 / 1 AT: 0-100 sec 0 Sec PTR: 132kV / 110 V
IDMT Earth fault protection (51N)Ie: 0.08-4In 0.2 * In IDMT curve (3 sec)TMS: 0.1-1 0.3 Sec
Inst.Earth fault protection (50N) Ie: 0.08-4In 0.3 * InT: 0-100 sec 0.3 Sec
5 27, 59 Numerical MICOM P921 Under voltage protection (27)59D protection relay U<: 10-120V 0.8
T: 0-100 sec 0.5 sec
Over voltage protection (59)U>: 60-185V 1.1T: 0-100 sec 0.5 sec
Neutral displacement protection (59DLV)V: 5.4 -20V 5.4 VTMS 0.1 sec
NOTE: a) All settings are referred with respect to secondary values.
PREPARED BY: ARD5 of 11
CHECKED BY: KBDAPPROVED BY: ABH
RELAY SETTING CHART- 132KV SWITCHYARD RELAY
Sr.No Protection Description Type ref. Setting Range Recommended Setting Remarks
b) All the other functions which are not mentioned in this chart shall be disabled.