BID DOCUMENT For the Purchase of:- Protection Relays. Subject of Procurement Protection Relays Procurement Reference Number EEU/TRA 005-007/2015 Lot,2 Project Name Transmission Substation Operation Office[insert project name, if applicable] Date of Issue of Bidding Document Addis Ababa, February , 2015 [insert date]
C. [Note to Contracting Authority: Please delete not applicable parts of the Form.] Delivery Schedule for Goods and Related Services Place and Date: Procurement Reference No: EEU/TRA 005-005/2015 Lot,2 Alternative No: To: [insert name of Contracting Authority] Ababa Attn.: [insert name of authorized person] [insert address] [[[[[[[[[[[[[ Item/ No. Description of Protection Relays Unit Qty Required Delivery Date From Opening of L/C Bidder’s Offer Delivery Date Delivery Date From Opening of L/C A Protection Relays 1 Distance protection relay: rated current 1 and 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 50 2 Directional Overcurrent and earth fault protection Relays : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 50 3 Single phase earth fault protection Relay : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 50 4 Non directional Overcurrent and earth fault protection relay with buil-in autorelosure : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 200 5 Differential protection for 3-Winding transformer : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 50 6 Differential protection for 2-Winding transformer : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c No 50 7 Bus bar differential Protection : rated current 1 or 5A, rated voltage Vnom=100V ac, 50Hz, Vaux=125Vd.c Central unit No 8
70°c / 24 H Dry Heat Test – Storage IEC Test Bd : +70°C / 96h Powered On at +70°C Enclosure Protection IEC 60529 Front : IP=52 Rear : IP=30 Inrush current (start-up) T < 1,5 ms / I < 20 A T < 150 ms / I < 10 A T > 500 ms / I < 1,2 In Supply variation IEC 60255-6 Vn 20% Vn+30% and Vn-25% for information Overvoltage (peak withstand) IEC 60255-6 1,32 Vn max 2 Vn during 10 ms (for information) Supply interruption IEC 60255-11 From 2,5 ms to 1 s at 0,8 Vn 50 ms at Vn, no malfunction (for information) 40 s interruption IEC 60255-11 Ripple (frequency fluctuations) IEC 60255-11 12% Vn at f=100Hz or 120Hz 12% Vn at f=200Hz for information Supply variations IEC 60255-6 Vn 20% AC Voltage dips and short interruptions EN 61000-4-11 2ms to 20ms and 50ms to 1s 50 ms at Vn, no malfunction (for information Frequency fluctuations IEC 60255-6 50 Hz : from 47 to 54 Hz 60 Hz : from 57 to 63 Hz Voltage withstand 2 Vn during 10 ms (for information) High Frequency Disturbance IEC 60255-22-1 IEC 61000-4-12 IEEE C37.90.1 Class 3 : 2.5kV (CM) / 1kV (DM) Class 2 : 1kV (CM) Electrostatic discharge IEC 60255-22-2 IEC 61000-4-2 Class 4 : 8kV contact / 15 kV air Radiated Immunity IEC 60255-22-3 IEC 61000-4-3 Class 3 : 10 V/m – 80 to 1000 MHz and spot tests IEEE C37.90.2 35 V/m – 25 to 1000 MHz Fast Transient Burst IEC 60255-22-4 IEC 61000-4-4 IEEE C37.90.1 Class 4 : 4kV – 2.5kHz (CM and DM) Class 3 2 kV - 2,5 kHz MC Class 3 : 2kV – 5kHz (CM)
b) For phase to earth connection Frequency protection;- a) Number of frequency element / b) Setting range (Hz) c) Time delay setting (Sec) Fault locator output for fault distance indication (in ohm, km, %) ohm ; km ; % Measured values ranges and display, please list: - Metering:- a) Forward kWh range b) Reverse kWh range c) Forward kVarh range d) Reverse range Synchrocheck function included (Yes / No) yes Number of Instantaneous recording Number of event records Number of Fault records Disturbance recording setting: - a) time range (msec) b) Post-fault time range (msec) c) Limit time range (msec) d) Number of recorded disturbances e) Trigger for disturbance Output relays a) Contact type b) Make current c) Current carrying capacity
winding Differential protection relay Description Requested Offered Manufacturer of manufacturer Relay type Rated voltage, AC Ph-Ph, (Volts) 100 current HV side (A) 1 and 5 dual rated with separte terminal Rated current MV side (A) 1 and 5 dual with separte terminal Rated current LV side (A) 1 and 5 dual rated with separte terminal Rated frequency, (Hz) 50 of auxiliary DC supply (Volts) 125 + 20% Number of output relays or contacts > 10 Number of LEDs for indications > 4 user programable System interface: - a) Connection RS 485 b) Protocol IEC 60870-5-103 c) Communication speed > 9600 kb/s Front serial interface communication: - a) Baud rate b) Connection RS 232 Service / modem interface connection (RS 232, RS 485 or fiber optic) RS 485 Time synchronization signal IRIG-B Time tagging resolution (msec) + 1 Nominal operating time (msec) < 35 Differential protection settings: - a) Pick-up values range of differential current b) High current stage range