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SNI voltage stabilizers

Description




SNI1 (single-phase) and SNI3 (three-phase) voltage stabilizers of IEK brand are intended for maintaining stable single/three-phase supply voltage of residential and industrial loads of 220V/3x220V, 50Hz at power fluctuations within wide range of value and period of time.

They are applied for stabilizing voltage when working with highly-sensitive equipment in industrial sites, medical institutions, telecommunication companies, low-rise building as well as housing and public utility sector. SNI voltage regulators provide for extending the service life of alarm systems, computer equipment etc.

They correspond to standards EN 55014-1, EN 55014-2, EN 60335-1, EN 61000-3-2.

These devices were awarded gold medal of the International Exhibition Elektro-2009 in nomination Best Electrical Equipment for their high quality, reliability and exploitation ratings as well as efficient engineering solutions.

Range


  Name Power, kVAMax. input current, A Fuse/modular circuit breaker, type Overall dimensions, mm (WxDxH) Weight, kg Multiple package amount, pcs Product ID
SNI1 single-phase voltage stabilizers
SNI1 0,5 kVA 0,5 2,25 Fuse, In 5A 19,316,513 4,5 4 IVS10-1-00500
SNI1 1 kVA 1 4,5 Fuse, In 7A 22,52620 6,5 4 IVS10-1-01000
SNI1 1,5 kVA 1,5 6,75 Fuse, In 8A 22,52026 7,5 4 IVS10-1-01500
SNI1 2 kVA 2 9 Modular circuit breaker, C10 2P 22,52921,5 10 1 IVS10-1-02000
SNI1 3 kVA 3 13,5 Modular circuit breaker, C16 2P 22,53125 12,5 1 IVS10-1-03000
SNI1 5 kVA 5 22,5 Modular circuit breaker, C20 2P 2231,728,3 18 1 IVS10-1-05000
SNI1 7 kVA 7 32 Modular circuit breaker, C32 2P 27,331,1 44 26 1 IVS10-1-07000
SNI1 10 kVA 10 45 Modular circuit breaker, D50 2P 27,331,1 44 27 1 IVS10-1-10000
SNI1 15 kVA 15 67 Modular circuit breaker, D63 2P 3338,565 60 1 IVS10-1-15000
SNI3 three-phase voltage stabilizers
SNI3 3 kVA 3 1 34,5 Modular circuit breaker, C8 3P 31,545,517,5 18 1 IVS10-3-03000
SNI3 6 kVA 32 3 9 Modular circuit breaker, C10 3P 27,537,367 33,5 1 IVS10-3-06000
SNI3 7,5 kVA 32,5 3 10 Modular circuit breaker, C10 3P 3235,576,8 43,5 1 IVS10-3-07500
SNI3 15 kVA 35 322,5 Modular circuit breaker, C20 3P 43,83979,3 78 1 IVS10-3-15000
SNI3 20 kVA 36,6 3 32 Modular circuit breaker, C32 3P 51 44 85 102 1 IVS10-3-20000
SNI3 30 kVA 310 345 Modular circuit breaker, D50 3P 514497,5 111 1 IVS10-3-30000

Advantages


  • High precision in maintaining the output voltage within the input voltage operating range (220V3%).
  • Wide input voltage range. SNI1: 135÷275V; SNI3: 135÷275V phase; 235÷475V linear.
  • High efficiency ≥ 90%.
  • Six protection degrees: from overload short circuit, overheating, dangerous overvoltage, dangerous undervoltage, surge overvoltages.
  • Stabilizer does not disturb the sinusoidal waveform of output voltage.
  • Modern circuit modeling.
  • High quality protection and commutation IEK units: VA47-29, VA47-100 series breakers and KMI AC contactors.
  • Convenient mounting, maintenance and transportation at the expense of built-in ergonomic handles (for small sized regulators) and wheels (for larger units).
  • Warranty maintenance period 3 years from the date of sale.
  • Expanded network of service centers throughout the country.

Design Features


Convenient indication system displaying operating modes, output and input phase voltage levels, phase current levels. Using high quality protection and commutation IEK units: VA47-29, VA47-100 series breakers and KMI contactors.
Easy mounting and servicing. Two-polar IEK circuit breakers installed in single-phase SNI1 voltage regulators protect phase and neutral conductors providing for boosting electric safety and reliability.
Thermal protection ensured by a self-returning thermobimetallic element. SNI3 voltage stabilizers are provided with a phase retardation protection function turning the device off at the said emergency. The abovementioned protection is especially necessary for electric motor supply (refrigerators, air conditioners etc.) breaking down in case of phase retardation.
Enhanced brush rack construction for excluding contact unit overheating. Standard set is completed with spare parts fuses and current collector autotransformer brushes.
Short and long-term delay option for protecting equipment from voltage surges (refrigerators, air conditioners etc.).    

Technical Features


Feature SNI1 SNI3
Rated output power Pn at input voltage of 200V, kVA 0,5; 1; 1,5; 2; 3; 5; 7; 10; 15 3; 6; 7,5; 15; 20; 30
Operating input voltage range Uin, V 160÷250 - phase: 160÷250
- line: 280÷430
Max. input voltage range, V 135÷275 - phase: 135÷275
- line: 235÷475
Output voltage Uout, V 220 - phase: 220
- line: 380
Output voltage maintenance accuracy in operating input voltage range, % ± 3 ± 3
Tripping voltage from increased output voltage Umax, V 246 246 (for each phase voltage)
Tripping voltage from decreased output voltage, Umin, V 184 184 (for each phase voltage)
Thermal protection at increase of transformer temperature, ºC 105 105
Output voltage delay standard 5 s 5 s
long 5 min n/a
Efficiency, % > 90
Response time, s < 1 (Uin 10%)
Ambient temperature range, —5 ÷ + 40

Overall Dimensions


Type L, mm H, mm B, mm
SNI1-0,5 kVA 193 130 165


Type L, mm H, mm B, mm
SNI1-1 kVA 225 150 200
SNI1-1,5 kVA 225 150 200


Type L, mm H, mm B, mm
SNI1-2 kVA 225 215 280
SNI1-3 kVA 225 250 295
SNI1-5 kVA 220 283 235


Type L, mm H, mm B, mm
SNI1-7 kVA 273 380 232
SNI1-10 kVA 273 380 232


Type L, mm H, mm B, mm
SNI1-15 kVA 330 650 385


Type L, mm H, mm B, mm
SNI3-3 kVA 315 175 455


Type L, mm H, mm B, mm
SNI3-6 kVA 275 670 373
SNI3-7,5 kVA 320 768 355


Type L, mm H, mm B, mm
SNI3-15 kVA 438 793 390
SNI3-20 kVA 510 850 440
SNI3-30 kVA 510 975 440

Configuration


SNI1

SNI3

- stabilizer 1 pcs.

- stabilizer 1 pcs.

- operation manual. Passport 1 pcs.

- operation manual. Passport 1 pcs.

- warranty card 1 pcs.

- warranty card 1 pcs.

- spare fuses (for models 0,5; 1; 1,5 kVA) 2 pcs.

- spare autotransformer brushes 1 pcs.

- spare autotransformer brush 1 pcs.

- packaging 1 pcs.

- packaging 1 pcs.

 

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+7 (495) 542 22 22
 
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