ULTRA-K Series 600K-he 15-500kVA

The Trystar ULTRA-K Series 600K-he 15-500kVA, three phase, high efficiency, K-rated power conditioning transformers are specifically designed to provide a high degree of electrical noise attenuation and transient voltage suppression to protect sensitive electronic loads. Offered with four different K-factor ratings (K4, K7, K13, and K20), the ULTRA-K is fully compatible with non-linear loads, handling the high harmonic currents associated with such loads.

The Ultra-K meets and exceeds DOE 2016 minimum efficiency standards and has a NEMA 2 enclosure up to 225 kVA; NEMA 1 at 300kVA and 500kVA; and optional NEMA 3R up to 225kVA. Three phase models include nominal input voltage options from 208VAC to 600VAC (Delta). Standard output voltages are 208/120VAC or 480/277VAC. Special output voltages include 400/230VAC, 460/266VAC or 600/347VAC.

Trystar ULTRA-K Series 600K-he 15-500kVA Features

• Transformer power losses are lower than mandated by the DOE 2016 Standard, yielding a direct decrease in operating costs over the life of the transformer
• Double or triple shielded for high common mode noise attenuation from input to output; and also prohibits system back feed from noise generating load
• Optional output category B3 SPD (40kA per mode) with high frequency filter provides critical loads with optimum protection from noise, impulses, and high-energy voltage transients
• Optional output SPD (50 kA to 200 kA per phase), UL 1449 Listed, Type 2, including EMI/RFI filtering, Form C relay contacts, and LED status indicators
• Multiple K-factor ratings (K4, K7, K13, K20) allow proper application for both linear and non-linear loads. The higher the K-factor rating, the more harmonic current the transformer can handle
• Designed specifically to handle the harmonics, heating effects, and increased output neutral current created by non-linear loads
• Removes load-generated triplen harmonics from the incoming power source
• All-copper wound transformer construction allows the optimization of conductor size and geometry, to enhance harmonic-handling capability and transformer efficiency
• Standard, floor mounted enclosure: NEMA 2 up to 225 kVA; NEMA 1 at 300kVA and 500kVA; optional NEMA 3R outdoor enclosure available up to 225kVA
• Optional input and/or output circuit breaker(s) provided in a separate NEMA 1 enclosure for external mounting and installation
• Optional high/over temperature alarm contacts provided for tripping upstream breakers if required
• Optional industrial-grade IR scanning window for safe, routine thermal scanning of transformer connections under load, without exposing personnel to arc flash hazards
• Optional lug kit available – mechanical (screw-type) lugs shipped for installer convenience
• Special voltage configurations available, including “high leg delta” designs

Trystar ULTRA-K Series 600K-he 15-500kVA Specifications

• Efficiency: U.S. – Meets and exceeds U.S. Department of Energy (DOE) 2016 minimum efficiency standards identified under DOE 10 CFR Part 431
• Multiple Voltage Compensation Taps: Full capacity above/below nominal
• Output Impedance: 2% – 3.5% typical
• Output Distortion: Less than 1.0% THD added under linear load
• Load Regulation: 2% typical, no load to full load
• Overload: Up to 500% for 10 seconds, 1000% for 1 cycle
• Isolated Neutral: Establishes a new neutral to ground bond on the transformer’s output
• Common Mode Noise Attenuation: 126 dB (standard double shielding); 146 dB (optional triple shielding)
• Transverse Mode Noise Attenuation: 3 dB down at 10kHz, decaying 20 dB per decade; decaying 40 dB with “SPD With High Frequency Filter” option
• Operating Temperature: -25°C to +40°C
• Audible Noise: 45 to 55 dBA @ 1 meter (kVA size dependent)
• Neutral Size: Twice the ampacity of the secondary phase conductor on the three phase models
• Temperature Rise: 135°C rise above ambient, under non-linear loading per UL 1561 standard
• UL 1561 Listed, labeled for operation at or below a specific K-factor rating
• C-UL Listed to CSA Standard C22.2, No 47-13

For more in-depth specifications, see the data sheet.