Tender for DR.MVR RTPP-STAGE-I-EMMRT- PROCUREMENT OF NUMERICAL UNDER VOLTAGE RELAYS -OFFERREQ- REG
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DR.MVR RTPP-STAGE-I-EM MRT- PROCUREMENT OF NUMERICAL UNDER VOLTAGE RELAYS -OFFERREQ- REG , NUMERICAL UNDER VOLTAGE PROTECTION RELAY.PROTECTION FUNCTIONS- UNDER VOLTAGE PROTECTION (27), NEUTRAL DISPLACEMENTS RELAY (64),PT INPUTS- 4 - 50 HZ ( THREE FOR LINE VOLTAGES, ONE FOR RESIDUAL OVER VOLTAGE( ZERO SEQUENCE VOLTAGE).OPTO INPUTS- EACH RELAY SHOULD HAVE A MINIMUM OF 3 PROGRAMMABLE OPTO-ISOLATED LOGIC INPUTS (THE LOGIC INPUTS MUST ACCEPT AC (230 V) And DC(220 V)).RELAY OUTPUTS- MINIMUM OF 10 CONTACT RATING MUST BE CAPABLE TO TRIP THE BREAKER/ ACTUATE THE AUXILIARY RELAYS DIRECTLY WITH LATCH FUNCTION (PROGRAMMABLE)AUXILIARY SUPPLY- IT SHOULD ACCEPT BOTH AC And DC (24 V-230V AC/DC). COMMUNICATION PROTOCAL- IEC61850. FRONT PANEL - LCD SCREEN.
BOQ
| Sl. No. | Item Name |
| 1 | NUMERICAL UNDER VOLTAGE PROTECTION RELAY.PROTECTION FUNCTIONS- UNDER VOLTAGE PROTECTION (27), NEUTRAL DISPLACEMENTS RELAY (64),PT INPUTS- 4 - 50 HZ ( THREE FOR LINE VOLTAGES, ONE FOR RESIDUAL OVER VOLTAGE( ZERO SEQUENCE VOLTAGE).OPTO INPUTS- EACH RELAY SHOULD HAVE A MINIMUM OF 3 PROGRAMMABLE OPTO-ISOLATED LOGIC INPUTS (THE LOGIC INPUTS MUST ACCEPT AC (230 V) and DC(220 V)).RELAY OUTPUTS- MINIMUM OF 10 CONTACT RATING MUST BE CAPABLE TO TRIP THE BREAKER/ ACTUATE THE AUXILIARY RELAYS DIRECTLY WITH LATCH FUNCTION (PROGRAMMABLE)AUXILIARY SUPPLY- IT SHOULD ACCEPT BOTH AC and DC (24 V-230V AC/DC). COMMUNICATION PROTOCAL- IEC61850. FRONT PANEL - LCD SCREEN. |
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