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Series 700A Power Processor

(10kVA – 1MVA) Three Phase

Power Conditioning Voltage Regulators


The Series 700A Power Processor is an electronic, microprocessor-controlled tap switching voltage regulator/power conditioner, which consists of an all-copper, multiple-tapped, triple-shielded isolation transformer. The transformer’s three electrostatic shields provide excellent electrical noise attenuation, and its low output impedance results in outstanding load regulation. On each of the transformer’s seven taps per phase, independently controlled inverse parallel electronic switches are used to provide tight output voltage regulation to within ± 3% of nominal. Digital processing provides fast, accurate regulation within one cycle, without any voltage over- or under-shoot.

Three Phase Sizes: 10kVA, 15kVA, 25kVA, 30kVA, 45kVA, 50kVA, 75kVA, 100kVA, 125kVA, 150kVA, 225kVA, 300kVA, 350kVA, 400kVA, 450kVA, 500kVA, 1MVA

Single phase sizes also available.

Series 700A Power Processor (5kVA - 1MVA)
  • 7-tap, microprocessor-controlled for tight voltage regulation, accuracy, and stability
  • True “current zero crossing” switching
  • Low power factor compatibility
  • Precisely maintains correct voltage to ± 3% within 1 cycle, and maintains regulation during extended brownouts
  • Extended input regulation range options including +10%, -40%; +15%, -25%; and +20%, -30%
  • Low output impedance transformer minimizes voltage distortion and sags commonly associated with high surge currents
  • Triple-shielded isolation transformer provides a noise-free ground, attenuates voltage spikes and transients, and re-establishes the N-G bond
  • Optional internal manual bypass option maintains system isolation, voltage transformation, and power conditioning
  • Superior compatibility with dynamic loads
  • Increased surge capability, without the need for automatic bypassing, provides full-time power conditioning
  • High-efficiency design results in lower operating cost
  • Output receptacles with circuit breakers optional on models 10kVA – 30kVA
  • Optional input and/or output meter with power quality monitoring, and remote network communications
  • Input Operating Voltage Range: +10%, – 20% from nominal (Extended regulation range options available.)
  • Input Frequency: 60 Hz, ± 3%
  • Input Power Factor: > .95 PF with resistive load
  • Reflected Harmonics: Triplen harmonics are not reflected to the utility under non-linear loads
  • Output Line Voltage Regulation: ± 3% from nominal
  • Response Time: < 1/2 cycle
  • Correction Time: 1 cycle
  • Load Regulation: 2.5% typical, no load to full load
  • Overload Rating: 200% for 10 seconds; 1000% for 1 cycle
  • Common Mode Noise Attenuation: 140dB
  • Transverse Mode: 3 dB down at 1kHz; 40 dB down per decade to below 50 dB with a resistive load
  • Transient Voltage Suppression: Meets ANSI C62.41 Category B-3
  • Efficiency: 97% typical, model and load dependent
  • UL 1012 Listed, C-UL Listed to CSA C22.2, No. 107.1-01
  • Machine Tools/CNC Equipment
  • Co-generation & Power Generation
  • Manufacturing/Automation/Robotics
  • Pharmaceuticals/Labs
  • Audio/Video Recording Equipment
  • Broadcast Communications
  • Telecommunications
  • Concert Halls/Theaters
  • Wastewater Treatment Plants
  • Refineries/Petrochemical
  • Aerospace
  • Printing Presses
  • Pulp/Paper Mills
  • Food Processing Plants
  • UPS Bypass & Power Distribution
  • What is a tap switching power line conditioner?
    • Tap switching describes a voltage regulating system that uses pre-selected transformer taps to compensate for varying line voltages. A microprocessor control selects the correct tap and makes a connection through high-powered electronic switching devices. This technology is fast, accurate, and very efficient. Power conditioner refers to the system’s ability to provide clean power, free of voltage spikes, transients, and electrical noise.
  • Are all tap switching power conditioners the same?
    • No. Some systems use six voltage taps per phase, while the Series 700A uses seven voltage taps per phase. This extra tap has a big benefit, resulting in tighter voltage regulation and a more stable power source. The Series 700A’s proprietary switching algorithms ensure that incoming voltage distortion will not affect regulation performance, and that nuisance switching and voltage over-shoot often seen with other manufacturers’ designs are eliminated.
  • Where should the Series 700A tap switching technology be used?
    • Tap switching technology should be used for applications and with equipment that require a regulated power source to function properly and perform at an optimum level. For most electronically controlled systems, voltage regulation (correction) must occur within a few cycles. The Series 700A provides voltage correction in one cycle. Other voltage regulating technologies can take numerous cycles or seconds to adjust. This is not acceptable for most electronically controlled systems.
  • What power quality advantages does the Series 700A offer?
    • The Series 700A has three major advantages.
      1. When the input voltage rises dangerously above nominal, the microprocessor immediately calculates the correction necessary, and switches to the appropriate voltage compensating tap within one cycle.
      2. To provide power conditioning, a low impedance shielded isolation transformer is used to minimize voltage distortion and sags commonly associated with high surge currents. Loads that create momentary surge currents do not affect other equipment connected to the system. The isolation transformer is constructed using three electrostatic shields that provide a high level of common mode noise attenuation, eliminating ground noise and transients.
      3. Size, weight, audible noise, and operational efficiency are all optimized.
  • How much overload can the Series 700A handle?
    • The Series 700A is very robust and conservatively designed, handling 1,000% of its continuous rating for one cycle and 200% for 10 seconds!
  • How does the Series 700A protect the load from a utility loss of phase condition?
    • A utility loss of phase condition can prove detrimental to sensitive three-phase loads, including motor loads. The Series 700A protects downstream equipment by electronically shutting off if the power source feeding it loses one or more phases. Once the phases return, the Series 700A will turn all three phases back on simultaneously. This protects the load and ensures that the line currents will not exceed critical values.
  • Is the Series 700A as reliable as other technologies?
    • Yes, and in some cases … much more. Our tap switching technology has a long history of reliability, exceeding 200,000 hours of field-compiled data. Conservatively designed, rated components are never stressed. In the event that input or output conditions exceed the unit’s ratings, protective devices are strategically placed to minimize or eliminate component failure.

Controlled Power Company warrants the Series 700A Power Processor to be free from defects in material and workmanship for a period of one (1) year following shipment from the factory. Controlled Power Company agrees to replace, F.O.B. its factory, any parts which fault through defect in material or workmanship during the warranty period.

Warranty begins from date of shipment unless a factory start-up is purchased, then the warranty begins from date of start-up or 90 days from ship date; whichever comes first.

Consult the factory for additional warranty details, and a description of start-up services provided.