Customization: | Available |
---|---|
Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Energy-storage Type |
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1. |
Type |
|
CHZ32-12KV |
|
2. |
Nominal Operating Voltage |
kV |
11 |
|
3. |
Highest System Voltage |
kV |
12 |
|
4. |
Rated continuous current |
A |
400 |
|
5. |
Frequency |
Hz |
50 |
|
6. |
Number of Phases |
|
3 |
|
7. |
Type of earthing |
|
Earthing |
|
8. |
Short circuit Interrupting capacity-1 sec |
kA |
12.5 |
|
9. |
Interruption medium |
|
Vacuum |
|
10. |
Bushing material |
|
High temperature vulcanized silicon rubber |
|
11. |
Operating mechanism actuator |
|
magnetic |
|
12. |
Lightning Impulse withstand voltage |
kV |
95kv |
|
13. |
Power frequency withstand voltage |
kV |
28KV |
|
14. |
Altitude above sea level (max) |
m |
1400M |
|
15. |
Operating Temperature |
°C |
-1ºC TO 40ºC |
|
16. |
Humidity |
% |
85 |
|
17. |
Lightning activity |
|
HIGH |
|
18. |
External Supply |
|
WITH NORMAL SUPPLY OFFER |
|
19. |
Voltage Transformer to be provided |
Yes/No |
YES |
|
20. |
I/O Expander card to be fitted |
Yes/No |
YES |
|
21. |
Auto recloser SCADA Controls & Monitoring |
|
The auto recloser shall be designed with seamless integration with SCADA, modem, and radio systems. |
|
i. |
Communication protocols for smart grid adaptation |
|
.IEC 60870-5-101 IEC60870-5-104
|
i. |
Controls |
a) Facility to enable remote breaker closing and opening shall be provided |
Yes/No |
YES |
|
ii. |
The following remote Indications /Alarms status shall be provided: |
a) Double indication for Breaker open/close status |
Yes/No |
YES |
|
b) Remote control disabled (on Local Control)/enabled (on remote control) |
Yes/No |
YES |
|||
c) Automatic sequence enable/disabled |
Yes/No |
YES |
|||
d) Over current trip |
Yes/No |
YES |
|||
e) Earth fault trip |
Yes/No |
YES |
|||
f) Fault current magnitude |
Yes/No |
YES |
|||
g) Lockout |
Yes/No |
YES |
|||
h) Auxiliary supply healthy |
Yes/No |
YES |
|||
i) Number of operations |
Yes/No |
YES |
|||
iii. |
The offered solution shall enable the following measurands to be transmitted to the central system: |
a) Phase Currents |
Yes/No |
YES |
|
b) Phase voltages |
Yes/No |
YES |
|||
c) Battery Voltage |
Yes/No |
YES |
|||
d) MW and MVAr |
Yes/No |
YES |
|||
iv. |
Interlocks |
a) When in LOCAL selection, it shall not be possible to reverse a local setting remotely for the following: i) Recloser Status – TRIP / CLOSE ii) Local setting to block the supervisory.
|
Yes/No |
YES |
|
b) When in REMOTE control it shall be possible to reverse a local setting for all of the recloser features. |
Yes/No |
YES |
|||
v. |
Communication options to central system or RTU shall be: |
|
GRPS,WI-FI,RS485,RJ45 |
||
vi. |
GPRS enabled SIM cards shall be enabled to function on any service provider network in Zambia |
Yes/No |
YES |
||
Protection functions |
|
PROGRAMMABLE WITH MEMORY |
|||
Selectable Protection features |
Over current |
NORMAL IDMT ,VERY IDMT ,EXTREMELY IDMT AND INSTANTANEOUS |
|||
Earth fault |
DEFINITE TIME ,NORMAL IDMT ,VERY IDMT ,EXTREMELY IDMT AND INSTANTANEOUS |
||||
Sensitive earth fault |
DEFINITE CURENT AND DIFINE TIME |
||||
Negative Phase Sequence |
NORMAL IDMT ,VERY IDMT ,EXTREMELY IDMT AND INSTANTANEOUS |
||||
Local control features |
Breaker open |
Yes/No |
YES |
||
Breaker close |
Yes/No |
YES |
|||
Toggled Auto-recloser ON/OFF |
Yes/No |
YES |
|||
Toggled SEF ON/OFF |
Yes/No |
YES |
|||
Programmable delayed manual operation command |
Yes/No |
YES,PROGRAMMABLE FORM 30-60S |
|||
Local indications |
Breaker open |
Yes/No |
YES |
||
Breaker closed |
Yes/No |
YES |
|||
Breaker lock-out |
Yes/No |
YES |
|||
Auto-recloser ON/OFF |
Yes/No |
YES |
|||
SEF ON/OFF |
Yes/No |
YES |
|||
Protection operation |
|
RELAY 79 /50/51/59/27 WITH IEC CURVE C1,C2,C3,C4,C5 |
|||
A.C Auxiliary/D.C fail |
|
AC110V |
|||
Current per phase |
|
YES |
|||
Max demand ammeter |
|
YES |
|||
Minimum controller battery capacity |
Number |
24 OPERATION WITH OUT RECHARGE |
|||
Mounting platform/brackets to be incorporated |
Yes/No |
YES |
|||
Continuous monitoring and diagnostic systems for protection and controls |
Inbuilt or portable computer with program |
Portable computer with program; Operating events to be down-loaded and read; Able to impose on the protection and control a test sequence and responses evaluated
|
|||
Current inrush restraint to be installed |
Yes/No |
YES |
|||
Minimum Drop-off/pick-up ratio for OC and SEF devices |
% |
95 |
|||
SEF harmonic filters for 2nd and 3rd harmonics and higher |
2nd harmonic rejection |
≥6:1 |
|||
3rd harmonic rejection |
≥6:1 |
||||
Operating sequences |
|
INDEPENDENT OCEF AND SEF OPERATION SEQUENCES |
|||
Sensitivity of ordinary definite time earth fault devices |
A |
≦20A PRIMARY CURRENT |
|||
Sensitivity of Sensitive earth fault devices |
A |
2-20A IN STEP ≦2A |
|||
Selectable sensitive earth fault time delay |
sec |
3-25S IN STEPS OF 1S |
|||
Selectable sequential trips to lock-out |
|
1-2-3-4 |
|||
Selectable dead time for 1st reclosure |
sec |
INSTANTANEOUS TO 2S |
|||
Selectable dead time for 2nd, 3rd and 4th re closures |
|
2S-60S |
|||
Reclaim time |
sec |
5-180S |
|||
Surge arrester mounting brackets to be incorporated |
Yes/No |
YES |
|||
External levers for manual operation |
Yes/No |
YES |
|||
Pressure relief device to be installed |
Yes/No |
YES |
|||
Suitable for platform mounting |
Yes/No |
YES |
|||
Events register capacity |
|
3000 |
|||
Degree of protection of cabinets |
|
IP54 |
|||
Specific Creepage distance |
mm/kV |
25 |
|||
After sales service and training to be provided |
Yes/No |
YES |
|||
Drawings showing general layout of the auto recloser to be provide with bid |
Yes/No |
YES |
|||
Routine test results/certificates to be provided on delivery |
Yes/No |
YES |
|||
Previous type test results/certificate to be provide with bid |
Yes/No |
YES |
|||
Quality assurance certificate to be provided with the bid |
Yes/No |
YES |
|||
Installation, Operation and maintenance manual to be provided on delivery |
|
YES |
|||
Applicable standard |
|
IEC 62271-111 |