Clientele - Power System Modernization Retrofit and Refurbishment

Birla Cellulosic, Kosamba (A Unit Of Grasim Industries Ltd)

Incorporation of generator protection relays for 2 x 16 MW TG set Modification of existing Alstom relays to match the protection requirement on EPC basis. Execution of providing interposing current transformer and incorporation of required CTs to complete REF protection scheme for 7 nos. 6.6kV / 433V 1600KVA distribution transformers of expansion project.

Retrofitting of total 67 nos. of old relays with SEL make Numerical Protection Relay models SEL551 for feeder protection, SEL749 for motor protection and SEL787 for transformer protection on EPC basis, in phase manner including testing and configuration of relays.

Zuari Agro Chemical Limited, Goa

Retrofitting of total 47 nos. of relays with SEL make Numerical Protection Relay models SEL751 and SEL551C for feeder protection, SEL749 for motor protection, SEL710 for synchronous motor protection and SEL787 for transformer protection on EPC basis, in phase manner including testing and configuration of relays.

Retrofitting of total 29 nos. of 3.3kV Fuiji make bulk oil circuit breaker panels with ABB make VCB panels on EPC basis including testing and commissioning of panels

Retrofitting of total 2 nos. of RTCC Panel for 33/3.3kV 8.9MVA Transformers and Emergency Generator Supervisory Panel on EPC basis including testing and commissioning of panels

Welspun Industries Ltd, Vapi

Engineering, Procurement and Construction of 28 nos. feeder protection relay type SEL751A and 2 nos. feeder protection relay type SEL351A having additional direction features.

Indian Rayon Industries Ltd, Veraval

Incorporation of REF protection schemes for distribution transformer (26 nos.) Refurbishment and replacement of IDMT over current and earth fault relays at 160 locations on EPC basis

Indo Gulf Corporation Ltd, Jagdishpur

Incorporation of REF protection schemes for distribution transformer (26 nos.)

Nirma Limited - Bhavnagar

Incorporation of split core current transformer and earth fault protection relay type CTUM15 for sensitivity of all large feeders having CT ratio more than 200Amp due to 100Amp earth fault current limitation on generators. Implementation of Transformer Differential Protection Scheme on two transformers of 5MVA 6.6kV / 33kV using SEL 587 relays on EPC basis

Sanghi Industries Ltd, Sanghipuram

Incorporation of protection system for generators initially design for restricting earth fault current to 20 Amps for 4x11.3 MW DG sets Modification of existing Alstom relays to match the protection requirement on EPC basis

Indian Farmers Fertilisers Co-operative Ltd, Kalol Unit

Refurbishment and replacement of IDMT over current and earth fault relays at 16 locations on EPC basis

Hitawa Electrical Consultants and Services Ltd, Lagos, Nigeria

Providing total Engineering support supply of Schneider make relays type SEPAM 1000 S20 and S80 T87 Retrofit, Testing and Configuration at site for customer PHCN on EPC basis

Aditya Birla Chemicals (India) Ltd, Renukoot Chemical Division

Providing total Engineering support supply of Schneider make MICOM relays type P521 Retrofit, Testing and Configuration at site on EPC basis

Alembic Ltd, Vadodara

Incorporation of REF protection schemes for distribution transformer (26nos.) Incorporation of protective relays in place of time delayed shunt fuse arrangement provided on MOCB (15 panels). Modification of existing Alstom / Jyoti relays to match the protection requirement on EPC basis

Hitawa Electrical Consultants and Services Limited – Lagos, Nigeria

Engineering, Procurement and Construction of 31 nos. Over current and Earthfault relay type SEPAM1000S20 and 7 nos. Transformer protection relay type S80T87 for various 33/11kV sub-stations of PHCN

Bahwan Engineering Company L.L.C. – Oman

Engineering, Procurement and Construction of complete transformer protection relay for 33/11kV, 20MVA including all supply materials like CT, ICT and sundry materials

P.T. Indo-Bharat Rayon, Indonesia

Engineering, Procurement and Construction of 5 nos. feeder protection relay type SEL551C / 501C

Tata Chemicals Ltd, Babrala

Modification of existing Alstom relays to match the protection requirement Incorporation of Numerical Feeder relay type REF/SPAJ, Motor Protection Relay type SPAM and Transformer Feeder Protection relay type RET of ABB replacing old Electro-mechanical relays of AREVA. The total number of various feeders amounted to approximately 120 nos.

Orient Abrasives Ltd, Porbandar

Incorporation of REF protection schemes for distribution transformer (06 nos.) Incorporation of protective relays in place of time delayed shunt fuse arrangement provided on MOCB (08 nos.) on EPC basis

Hindustan Gas Industries Ltd, Halol

Incorporation of REF protection schemes for distribution transformer (04 nos.) on EPC basis

Saurashtra Cement and Chemical Ltd, Porbandar

Incorporation of protective relays in place of time delayed shunt fuse arrangement provided on MOCB (04 nos.). Modification of existing Alstom / Jyoti relays to match the protection requirement

Garden Silk Mills Ltd, Surat

Incorporation of generator protection relays for 2 x 16 MW TG set Modification of existing Alstom relays to match the protection requirement on EPC basis

Easun Reyrolle Ltd, Bangalore

Incorporation of Numerical Distance Protection Relay type SEL 311C of SEL USA in place of Electromechanical Distance Protection Scheme for various substations of GETCO The work carried out is complete retrofit including testing and setting of relays for 19 schemes



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