Complete Transformer Substations 110/35 kV (KTP 110/35)
(设备/材料)
状态: New
位置或存放国家: Russia
服务工程支持: Yes
保证: Yes
价钱: 要求价格
描述:
Complete transformer substations (KTP) block-type for voltage of 35 and 110 kV are designed for reception, transformation, distribution and transit of electric energy of three-phase alternating current of industrial frequency of 50 Hz at nominal voltages of 110 and 35 kV.
概观:
| Parameter name | Parameter value | ||
| KTPB 110 | KTPB 35 | ||
| Maximum power, kVA, no more than | 63000 | 63000 | |
| Number of power transformers | 1, 2 | ||
| Type of switchgear | ORU; ZRU | ||
| Group of connections of power transformers in accordance with GOST R 52719 | Yн/Yн/Δ-0-11 1) | ||
| Insulation level in accordance with GOST 1516.3 | a, b | ||
| Test voltage of insulation of electrical equipment of the KTPB in a dry state for one minute in accordance with the requirements of GOST 1516.3, kV | |||
| - electrical equipment relative to the ground | 230 | 80/95 2) | |
| - power transformers relative to earth | 200 | 80/95 2) | |
| - between the contacts of the fuse disconnectors | 230 | 95/120 2) | |
| Test voltages for checking the electrical strength of insulation of auxiliary circuits for 1 min in accordance with GOST 1516.3, kV | 2 3) | ||
| Specific area, m2/(kVA), no more than | 0,020 | 0.044 | |
| Specific gravity, kg/(kVA), not more than | 0.496 | 1,030 | |
| Collection coefficient, not less than | 0.78 | 0.7 | |
VN side | |||
| Nominal voltage, kV | 110 | 35 | |
| Maximum working voltage, kV | 123 | 40.5 | |
| Rated current of main circuits, A | 630, 1000, 2000 | ||
| Nominal current of busbars, A | 630, 1000, 2000 | ||
| Electrodynamic withstand current of busbar, kA | 80; 100; 125 | 50; 63; 80 | |
| Thermal withstand current of busbar for 3 s, kA | 25; 31.5; 40; 50 | 20; 25; 31.5 | |
| Type of regulation on the HV side | RPN | ||
| Type of current of auxiliary circuits | Variable, constant | ||
| Nominal voltage of auxiliary circuits, V | 380±19; 220±11 | ||
| Frequency of alternating current of auxiliary circuits, Hz | 50 | ||
| Insulation resistance, MOhm | 500 | ||
| Leakage path length along external insulation, cm/kV | not less than 2.25 | ||
| Input/output execution | air | ||
Side NN | |||
| Type of switchgear | KRU | ||
| Nominal voltage, kV | 6;10 | ||
| Maximum working voltage, kV | 7.2; 12 | ||
| Frequency of alternating current of main circuits, Hz | 50 | ||
| Rated current of main circuits, A | 400; 630; 1000; 1250; 1600; 2000; 2500; 3150 | ||
| Nominal current of busbars, A | 400; 630; 1000; 1250; 1600; 2000; 2500; 3150 | ||
| Thermal withstand current for 3 s, Ik, kA | 20; 31.5; 40 | ||
| Rated breaking current of the circuit breaker, kA | 12.5; 20; 25; 31.5; 40 | ||
| Rated current of electrodynamic withstand of main circuits, kA | 32; 51; 64; 81; 102 | ||
| Rated current of electrodynamic withstand of the circuit breaker, kA | 32; 51; 64; 80; 102 | ||
| Rated power of dry transformers for auxiliary needs, kVA | 40 4) | ||
| No-load current of dry transformers for own needs, A, not more than at voltage | 6 kV | 0.4 | |
| 10 kV | 0.6 | ||
| Electrodynamic withstand current of the busbar system and power circuits of the switchgear (amplitude), kA, not less than | 2.5Ik | ||
| Thermal withstand current flow time, s | 3 | ||
| Input/output execution | aerial, cable | ||
| Exceeding the heating temperature of accessible switchgear elements above the ambient temperature, °C, no more than | 30 | ||
| Time of localization of an open electric arc within a cabinet or installation unit, s, no more than | 0.2 | ||
| Type of current of auxiliary circuits | variable, constant | ||
| Nominal voltage of auxiliary circuits, V | 380±19; 220±11 | ||
| Type of grounding system in accordance with the Electrical Installation Code (seventh edition) | IT | ||
| Frequency of alternating current of auxiliary circuits, Hz | 50 | ||
| Insulation resistance, MOhm | 500 | ||
JSC "Chez"
地点: 428020, Russia, Chuvash Republic, g. Cheboksary, pr. I. Yakovleva, 5
主要产品/服务: Equipment for electrical networks