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Westinghouse 30-471 (E) manual

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Table of contents for the manual

  • Page 1

    Instruction Leaflet 30-471 (E) Page 1 Westinghouse Canada Electronics, Control and Distribution Products Division September, 1984 New Information Robonic II Automatic Transfer Switches Operation and Maintenance Manual Index Warra nty ......................................... 2 Westinghouse Offices ..................... 3 General Description .......[...]

  • Page 2

    Instruction Leaflet 30-471 (E) Page 2 Warranty The company warrants the apparatus to be supplied hereunder to be of the kind designated or specified. The company shall repair or replace any defective part or parts, f.o.b. the company’s factory, repair shop or warehouse, which prove to be defective under normal and proper use within one year from [...]

  • Page 3

    Instruction Leaflet 30-471 (E) Page 3 Westinghouse industrial products, and a complete line of electrical construction products, are distributed across Canada by WESCO (Westinghouse Sales & Distribution Company). For product application, delivery or pricing information, call the WESCO office nearest you. WESCO Sales Office St. John’s 726-9073[...]

  • Page 4

    Instruction Leaflet 30-471 (E) Page 4 General Description CSA Standard C22.2 No. 178-1978 defines an automatic transfer switch as, “self acting equipment for transferring one or more load conductor connections from one power source to another.” The same Standard also gives definitions for type A and type B automatic transfer switches. “Transf[...]

  • Page 5

    Instruction Leaflet 30-471 (E) Page 5 Solid State Logic Control Panel Type LRO Robonic II Automatic Transfer Switch Rated 30 amperes through 100 amperes at 600 volts Ac maximum 50 or 60 Hertz. The mechanism is a lever operated device controlled by a 120 volt unidirectional motor. The transfer motor drives a nylon cam which in turn operates a steel [...]

  • Page 6

    Instruction Leaflet 30-471 (E) Page 6 Type “RO” Robonic II Automatic Transfer Switch A complete line rated from 150 amperes through 1000 amperes at 600 volts Ac or at 250 volts Dc. The transfer mechanism consists of the transfer motor, a gear train and two breaker operating cams. Spur Gear Meshing Relationship (bottom view of top cover) The tra[...]

  • Page 7

    Instruction Leaflet 30-471 (E) Page 7 Table 1 — Interrupting, Closing and Withstand Rating — Robonic Type A Robonic Continuous rms symmetrical amperes Rating Type 600 Vac 480 Vac 120,208,240 Vac 30 to 100 amps LRO 14,000 14,000 18,000 150 to 225 amps RO 22,000 22,000 25,000 300 to 1000 amps RO 22,000 30,000 42,000 1200 to 3000 amps PRO 65,000 6[...]

  • Page 8

    Instruction Leaflet 30-471 (E) Page 8 Both under and overfrequency cards are factory calibrated at 60 Hz. The actual values of pickup and dropout are as follows: Type Dial Setting Pickup Dropout Hz Hz Hz Underfrequency 60 57 55 Underfrequency 50 47 45 Overfrequency 60 63 65 Overfrequency 50 53 55 Undervoltage / Underfrequency Module S#1288C58G01 Op[...]

  • Page 9

    Instruction Leaflet 30-471 (E) Page 9 Adjustments Timer and frequency modules can be adjusted as per module front plate. Voltage sensing modules can be adjusted as follows: Undervoltage Module Set Description 1 Set Dropout knob maximum Counter-clockwise 2 Set pick-up knob maximum Counter-clockwise 3 Increase line volts to desired Dropout value (nor[...]

  • Page 10

    Instruction Leaflet 30-471 (E) Page 10 This time delay relay is an octual plug-in, sychronous motor type. It is complete with clutch and mechanical load switch giving one instantane- ously operated normally open contact and a timed single pole double throw contact in a dust-tight grey capsule. The mechanism is con- structed to operate for the time [...]

  • Page 11

    Instruction Leaflet 30-471 (E) Page 11 Portable Test Kit #50 An inexpensive, portable test kit, #1278C67G01, is available for convenient field testing and calibration of all plug-in cards and output relays. The only power source required is a 120V convenience outlet. A selector switch allows the operator to test individual cards or to simulate ATS [...]

  • Page 12

    Instruction Leaflet 30-471 (E) Page 12 Consider the Robonic II in the normal operating position, with normal power available and the normal interrupter closed. The following are energized: U.V. (undervoltage module), TDES (time delay engine start), and NR (normal relay). The U.V. monitoring all 3 phases of the normal power, senses a dip or loss of [...]

  • Page 13

    Instruction Leaflet 30-471 (E) Page 13 Replacing Parts The Robonic Automatic Transfer Switch has been designed to have all components accessible and readily removable from the front of the panels. The Robonic Transfer Switch is divided into two basic sections. The upper section consists of the main contacts and transfer mechanism, the lower section[...]

  • Page 14

    Instruction Leaflet 30-471 (E) Page 14 Trouble Shooting Guide Symptoms • refusal to re-transfer to normal source upon restoration • will not transfer to emergency source upon failure of normal source • transfer without a power failure in the normal source • no time delay when there should be • engine-generator starts when the normal sourc[...]