Motor Saver 201-575-AU Скачать руководство пользователя страница 5

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Calculating Voltage Unbalance

NEMA MG1 Unbalance Formula

% Voltage Unbalance = Maximum Deviation from the Average x 100%

Average

Example: The measured line-to-line voltages are 203, 210, and 212.
Average = 203 + 210 + 212 = 208.3

The maximum deviation from the average is the largest difference between the average voltage
(208.3) and any one voltage reading.

208.3 - 203 = 5.3 210 - 208.3 = 1.7 212 - 208.3 = 3.7

The maximum deviation from the average is 5.3.

% voltage unbalance = 5.3 x 100 = 2.5% unbalance

208.3

Содержание 201-575-AU

Страница 1: ...INSTALLATION INSTRUCTIONS 2880 North Plaza Drive Rapid City South Dakota 57702 800 843 8848 605 348 5580 fax 605 348 5685 MODELS 201A AU 201 575 AU Revision B1 Rapid City SD USA 02 2010 II_201A AU_B1...

Страница 2: ...r the motor control panel If the location is wet or dusty the MotorSaver should be mounted in a NEMA 4 or 12 enclosure 2 Mount an 8 pin socket to the motor control back panel SymCom P N OT08 PC sold s...

Страница 4: ...tart delay is typically set between 10 and 20 seconds Trip Delay Rotate the TRIP DELAY SEC knob to the desired setting This setting does not affect the trip delay on single phasing faults See SPECIFIC...

Страница 5: ...rage Example The measured line to line voltages are 203 210 and 212 Average 203 210 212 208 3 3 The maximum deviation from the average is the largest difference between the average voltage 208 3 and a...

Страница 6: ...When the MotorSaver trips on a fault the red STATUS light will display the fault code until the condition clears and the unit is reset by turning the RESTART SEC knob away from the M position until th...

Страница 7: ...e reset value call SymCom at 800 843 8848 or 605 348 5580 Red light is blinking in this pattern RED The voltage is high Measure the three line to line voltages Calculate the average according to the N...

Страница 8: ...3 15 80 01 5 12 7 NOTE Use of the OT08 PC or RB08 PC octal socket manufactured by Custom Connector Corp is required for the MotorSaver to qualify as a UL Listed device The OT08 PC is 35mm DIN rail co...

Страница 9: ...ndensing per IEC 68 2 3 Maximum Input Power 5 W Standards Passed Electrostatic Discharge ESD IEC 61000 4 2 Level 3 6kV contact 8kV air Radio Frequency Immunity Radiated 150 MHz 10V m Fast Transient Bu...

Страница 12: ...se see Terms and Conditions at www symcom com Visit us at www symcom com to see our complete product listing Need something special Contact SymCom today for your custom solution 800 843 8848 2010 SymC...