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Power-Sure 700 Tech Specs
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1.0 SCOPE

This specification covers the electrical aspects of the Power-Sure 700, which provides

clean regulated power to computers and other sensitive electronic equipment.

2.0 APPLICATION STANDARDS AND AGENCY APPROVAL

2.1 The Power Conditioner meets the requirements of the following standards:
* UL Listed under 1012
* CSA certified
* FCC rules and regulations of Part 15, subpart J, Class A requirements for radiated and conducted emissions.
2.2 The Power Condition is designed in accordance with the applicable sections of the documents published by:
* National Electric Code (NEC)/National Fire Protection Association (NFPAA).
* National Electrical Manufacturer's Association (NEMA).

2.0 GENERAL

The Power-Sure 700, Power Line Conditioner consists of an all copper, multiple tapped, triple shield isolation transformer. The low output impedance of the transformer in conjunction with the electrostatic shields assures computer grade performance with excellent noise and transient attenuation. Independently controlled inverse parallel electronic switches for each of the 7 taps per phase provides tight regulation. Linear devices are used for line synchronization to prevent phase shift errors normally associated with simple CT zero current crossing acquisition. The microprocessor control accurately selects the correct tap to maintain the output at +/- 3% of nominal, correcting for voltage disturbances within one cycle. Digital processing provides fast and accurate regulation without over or undershoot.

3.0 DYNAMIC ELECTRICAL CHARACTERISTICS

3.1 LINE VOLTAGE REGULATION
Input Line Voltage +10%, -20% Output Line Voltage +/-2.5% typical (+/-3% maximum).

Optional Extended Range for Intermittent Duty only:
Input Line Voltage +10%, -40% Output Line Voltage +/- 5.5% typical (+/-6% maximum).

3.2 RESPONSE TIME
Response time is less than 1/2 cycle.

3.3 CORRECTION TIME
The output voltage is corrected within 1 cycle.

3.4 LOAD REGULATION
The output is maintained to within 2 1/2% of nominal or less, from no load to full load.

3.5 OPERATING FREQUENCY
60 Hertz +/- 3 Hertz
50Hertz (optional) +/- 3Hz

3.6 HARMONIC DISTORTION
Less than 1% THD added to the output waveform under any dynamic linear loading conditions presented to the line regulator.

3.7 TURN-ON CHARACTERISTICS
When energized the voltage overshoot is 5% or less of the nominal voltage for less than 1 cycle.

3.8 OVERLOAD RATING
200% for ten seconds.
1000% for one cycle.

3.9 NOISE ATTENUATION

3.9.1 Common mode noise attenuation is typically 140 dB or greater.

3.9.2 Transverse mode noise attenuation is 3 dB down at 1000 Hertz, 40 dB down per decade to below 50 dB with a resistive load.

3.10 AUDIBLE NOISE
40dB to 50dB measured 3 feet away, depending on size.

3.11 EFFICIENCY
97% typical, 95% minimum.

4.0 MAIN TRANSFORMER

4.1 BASIC CONSTRUCTION
The transformer windings are of all copper conductor construction with separate primary and secondary isolated windings.

4.2 MAGNETIC
Grain oriented, M6 grade, stress relieved silicon transformer steel is utilized to minimize losses and provide maximum efficiency. Flux density will not exceed 15k gauss.

4.3 INSULATION
Class N (200° C) insulation is utilized throughout.

4.4 SHIELDING
The transformer has multiple (three) copper shields to minimize inner winding capacitance, transient and noise coupling between primary and secondary windings. Inner winding capacitance is limited to .001 pf or less.

4.5 COOLING
The transformer is designed for natural convection cooling.

5.0 MAIN INPUT BREAKER

A main input molded case thermal magnetic circuit breaker, rated at 125 % of the full load input current, is furnished as an integral part of the unit.

6.0 BY-PASS SWITCH (OPTIONAL)

A rotary bypass switch is provided which will bypass the regulator portion of the Power-Sure 700. The regulator can be either on-line or bypassed with one turn of the switch.

7.0 MONITORING (Three phase units only)

7.1 ALERT LIGHT
An indicator Light is provided to indicate that the output has been disabled by one of the following conditions:
Transformer over-temperature, Over voltage
SCR thermal overload, Under voltage

8.0 CABINET (Salient Characteristics)

8.1 Termination - Termination is rear access with input and output connections made of copper stand off bus.

8.2 Ventilation - Ventilation originates from the bottom of the cabinet and exhausts at the rear of the cabinet.

8.3 Mobility - The Power-Sure 700 cabinets are equipped with fixed casters located so as not to exceed 600 lbs./sq. inch on any one caster.

8.4 Accessibility - The cabinet is constructed with lift off side panels for ease of access.

9.0 CONTROLS

The control portion of the cabinet containing the circuit boards and connection to the semi- conductor devices is separate from the transformer and input / output termination.

10.0 WARRANTY

The Power-Sure 700 shall be covered by a full parts and Labor warranty from the manufacturer. The warranty period shall be twelve (12) months from date of installation or fifteen (15) months from date of shipment from the manufacturer, whichever occurs first.

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