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Power Conditioning & Protection
Imaging and laboratory instruments, plant floors with drive-heavy loads, sites at the end of a long utility feeder, imported and test equipment, operating rooms and wet procedure locations, resistance-grounded plant and mine power systems.
| What we supply | Range | Configurations | Listings |
|---|---|---|---|
| Electronic tap-switching regulators | 5 kVA to 1 MVA | Single and three phase; holds output within a few percent for input swings of 15 to 25 percent; sub-cycle correction | UL 1012 |
| Power conditioners and isolation | 3.5 to 500 kVA | Shielded isolation, K-rated where the load is nonlinear, common-mode noise attenuation, surge suppression | UL 1012 · UL 1561 |
| Harmonic filters | 50 to 375 A per unit · up to 15 paralleled | Passive filters tuned per drive; active filters injecting to meet the distortion limit at the point of common coupling | IEEE 519 · UL 508A |
| Power factor correction | 2.5 to 2,400 kvar · fixed and automatic banks, or active correction | Fixed or automatically switched banks; detuned with 7 percent reactors where drives are present | UL 810 · UL 508A · NEC 460 |
| Ferroresonant regulators | 250 VA to 25 kVA · single phase | Constant-voltage transformer; inherent isolation and transient suppression; no moving parts, no electronics | UL 1012 |
| Frequency conversion | 3.5 to 400 kVA · 60/50 Hz static · paralleled to 8 | Static converters for imported and test equipment; three phase | Per manufacturer certification |
| Resistance grounding | High-resistance to 5 kV at 10 A or less · neutral grounding resistors 5 to 69 kV, time-rated | High- and low-resistance grounding with fault location and alarm; artificial neutrals for delta systems; wall-mount to 600 V, floor-mount above | NEC 250.36 · IEEE 142 |
| Isolated power, healthcare | 3 to 25 kVA · single and dual voltage | Isolated power panels with a hospital-grade isolation transformer and line isolation monitor, for operating rooms and wet procedure locations; dual-system and X-ray variants | UL 1047 · NFPA 99 · NEC 517 |
Manufacturers in this family
- Bender
- Comsys
- IGARD
- Staco Energy
- Trystar
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Egress paths and stairs, assembly and healthcare occupancies, parking structures, warehouses with high-bay LED.
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Utility service and campus distribution, data halls and UPS input, hospitals and laboratories, plant floors and drive lineups, switchgear control power.