| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Double-column Disconnector |
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| SPECIFICATION OF 245KV DISCONTECTOR | |||
| 3.1.2 DISCONNECTORS(ISOLATORS) | |||
| Item No | Description | Particulars | OFFERED |
| 245kV | 245KV | ||
| 1 | Manufacturer | ||
| 1.1 | Name | Pars Switch Co. | HEMG |
| 1.2 | Country of origin | IRAN | CHINA |
| 2 | Type/Designation | NSA245/3150D DS,DS+ES | GW4-252KV |
| 2.2 | State whether end posts,vertical,centre break,etc | H.C.B. | CENTRA BREAK ,2 COLUMNS |
| 2.3 | Three phase or single phase | 3Phase | 3 PHASES |
| 2.4 | Earthing switch incorporated | NVA245 | JW10-252KV |
| 3 | Type of operating mechanism | BCM-F | SCRJ2 |
| 4 | Power at normal voltage required for: | ||
| 4.1 | Operating coil W | ------ | (--) |
| 4.2 | Motor (where provided) W | 170 | 370W |
| 5 | Operating characteristics: | ||
| 5.1 | Total time from initiation of opening operation to s isolator in fully open position | 3 up to 5 | 10S |
| 5.2 | Time from contact separation to extinction of s capacitive arc | 3 up to 5 | 10S |
| 5.3 | Total time from initiation of opening operation to time s when isolator gap can withstand phase voltage | 3 up to 5 | 10S |
| 6 | Rated voltage kV | 245 | 245KV |
| 7 | Rated normal voltage: a) for coupler bay A | 3150 | 3150A |
| b) for other bays A | 3150 | 3150A | |
| 8 | Maximum short time current for(1 | ||
| second/3 | |||
| second ) | |||
| 8.1 | Disconnector kA rms | 50(1S) | 50KA(1S) |
| 8.2 | Earth switch kA rms | 50(1S) | 50KA(1S) |
| 9 | Total mass of three phase isolator complete Kg | 1100(shipping) | 2665(SHIPPING) |
| 10 | Type pf earthing switch (where provided) | NVA | JW10-252KV |
| 11 | Type of operating mechanism for earthing switch | BCM-F | SCRJ3 |
| 12 | Basic insulation level at site altitude (IEC 694) | ||
| 12.1 | Lighting impulse withstand level (1.2/50μs wave) positive and negtive | ||
| 12.1.1 | To earth and between phases in the closed position kVp | 1050 | 1050KV |
| 12.1.2 | Between phases in the open position kVp | 1050 | 1050KV |
| Item No | Description | Particulars | OFFERED |
| 245kV | 245KV | ||
| 12.1.3 | Across open gap | ||
| 12.1.3.1 | Lightning impulse kVp | 1200 | 1200KV |
| 12.1.3.2 | Lighnting impulse/Bias kVp+ | 1200 | 1200KV |
| kV ACP | |||
| 12.2 | Switching surge withstand level (250/2500μs wave) | ||
| at site altitude - positive and negtive dry/wet | |||
| 12.2.1 | To earth and between phases in closed position kVp | N.A. | N.A |
| 12.2.2 | Between phases in open position kVp | N.A. | N.A |
| 12.2.3 | Across open gap | ||
| 12.2.3.1 | Switching surge kVp | N.A. | N.A |
| 12.2.3.2 | Switching surge/Bias kVp+ | N.A. | N.A |
| kV ACP | |||
| 12.3 | Power frequency withstand voltage at site altitude dry/wet | ||
| 12.3.1 | To earth and between phases in closed position - 1 kV minute | 460 | 460KV |
| 12.3.2 | To earth and between phases in open position - 1 kV minute | 460 | 460KV |
| 12.3.3 | Across open gap -1minute kV | 520 | 520KV |
| 13 | In air clearances: | ||
| 13.1 | Phase to earth aecing distance mm | please see DIM. Prints | 2100MM |
| 13.2 | Phase to phase distance in open position mm | please see DIM. Prints | 2550MM |
| 13.3 | Distance between terminals of open isalator mm | please see DIM. Prints | 2200MM |
| 14 | Support insulators | ||
| 14.1 | Manufaturer | China | CHINA |
| 14.2 | Type, designation of unit | Brown glazed porcelain | BROWN GLASED PROCELAIN |
| 14.3 | Minimum creepage to earth (to IEC 815) mm | 7500 | 7500MM |
| 15 | Protected creepage distance mm | 3204 | 3205MM |
| 16 | Radio influence voltage level measured at 1.1 times μV Us/√3 at 1MHz | 2500 | 2500MM |
| 17 | Maximum capacitive current that can be interrupted A by the disconnector | 1A | |
| Item No | Description | Particulars | OFFERED |
| 245kV | 245KV | ||
| 18 | Operating mechanism for disconnecting switch: | ||
| 18.1 | Type | BCM-F(MOTOR&HAND) | SCRJ2 |
| 18.2 | Operating voltage - rated/ min for : | ||
| (a) operating coil (if any) V | ----- | ||
| (b)Motor V | 220 VDC | 220VDC | |
| 19 | Opening time- from the moment when the coil is energised until the complete extinction of arc between opened contacts( under system highest voltage condition) | 3 up to 5 | 10S |
| 20 | Operation time - from the moment when the coil is energised until the disconnectoon of operating motor in limit open disconnected positioning. | 3 up to 5 | 10S |
| 21 | Operating mechanism for earthing switch | ||
| (a) type | BCM-F(MOTOR&HAND) | SCRJ3 | |
| (b) operating voltage- rated/min/max | 220 VDC | 220VDC | |
| (c)rated power | 170 | 370W | |
| 22 | Total weight of complete disconnecting switch ( one or three poles). | 1100(shipping) | 2665KG(SHIPPING) |
| 23 | Type test certificate details | ||
| (a)testing station | CESI - ITALY | KEMA | |
| (b)certificate numbers | A6020791 | TIC3010-03 | |
| 3.1.3 | EARTHING SWITCHES | ||
| Item No | Description | Particulars | |
| 245kV | 245KV | ||
| 1 | Manufacturer | ||
| 1.1 | Name | Pars Switch Co. | RGHY |
| 1.2 | Country of origin | IRAN | CHINA |
| 2 | Type / Designation | NVA245(associated with earthing switch )/outdoor | JW10-252 |
| 3 | Type of contacts | PIN | PIN |
| 4 | Materials of contact surface | Sliver Plated Copper | SILVER PLATED COPPER |
| 5 | Rated short time current | ||
| (a) For 1 sec KA(rms) | 50 | 50KA | |
| (b) For 2 sec KA(rms) | ---- | ||
| 6 | Rated peak short current KA(peak) | 125 | 125KA |
| 7 | Gap between poles Mm | Please see DIM.Prints | 2050MM |
| 8 | One minute power frequency withstand kV voltage cross open gap | Please see type test reports | 460KV |
| 9 | Lightning impulse withstand voltage | Please see type test reports | 1050KV |
| 10 | Operating mechanism | ||
| (a)Type | MOTOR&HAND(BCM-F) | SCRJ3 | |
| (b)Operating voltage - rated/min V | 220 VDC | 220VDC | |
| (c)Rated power W | 170 | 370W | |
| 11 | Main dimensions Mm | Please see DIM.Prints | SEE THE DRAWING |
| 12 | Total weight Kg | Please see DIM.Prints | SEE THE DRAWING |
| 13 | Type test certificate details | ||
| (a) Testing station/authority | CESI-ITALY | KEMA | |
| (b)Certificate number | A6020791 | TIC3010-03 | |
| (c)Applied standards | IEC62271-102 | IEC62271-102 | |
| 14 | Creepage distance mm | 7595 | 7595MM |
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