Vanguard Instruments CBPS-300 Manuale utente
OPERATING INSTRUCTIONS
for the
CBPS-300™
CIRCUIT BREAKER
DC POWER SUPPLY
Vanguard Instruments Company
1710 Grevillea Court
Ontario, California 91761
TEL: (909) 923-9390 April 2003
FAX: (909) 923-9391 Rev 1
CBPS-300 OPERATING INSTRUCTIONS
1
SAFETY WARNINGS AND CAUTIONS
Only trained operators shall use this device. All circuit breakers under test shall be off line and
fully isolated.
Do Not Service or Test Alone
Do not perform test procedures or service unless another person is also present who is capable of
rendering aid and resuscitation.
Do Not Modify Test Equipment
Due to the added risk of introducing additional or unknown hazards, do not install substitute
parts or perform any unauthorized modification to any CBPS-300 test unit. To ensure that all
designed safety features are maintained, it is recommended that repairs be performed only by
Vanguard Instruments Company’s factory personnel or by an authorized repair service center.
Unauthorized modifications can cause serious safety hazards and will nullify the manufacturer's
warranty.
Follow Exact Operating Procedures
Any deviation from the procedures described in the operator’s manual may create one or more
safety hazards, damage the CBPS-300 and the test transformer, or cause errors in the test results.
Vanguard Instruments Company, Incorporated assumes no liability for unsafe or improper use of
the CBPS-300.
CBPS-300 OPERATING INSTRUCTIONS
2
Table of Contents
1.0 INTRODUCTION...................................................................................................... 4
1.1 GENERAL DESCRIPTION........................................................................................... 4
1.2 FUNCTIONAL DESCRIPTION ...................................................................................... 4
1.3 FURNISHED ACCESSORIES....................................................................................... 4
2.0 CBPS-300 SPECIFICATIONS ................................................................................. 5
3.0 CONTROLS and INDICATORS ............................................................................... 6
4.0 PRETEST SETUP.................................................................................................... 9
4.1 OPERATING VOLTAGES............................................................................................ 9
5.0 OPERATING PROCEDURES................................................................................ 10
5.1 CBPS-300 CABLE CONNECTION ............................................................................ 10
5.2 GENERAL PROCEDURES ........................................................................................ 11
5.3 TEST OPEN COIL PROCEDURE ............................................................................. 11
5.4 TEST CLOSE COIL PROCEDURE ........................................................................... 11
5.5 ENERGIZE SPRING CHARGING MOTOR PROCEDURE ................................................ 12
5.6 REMOTE CONTROL MODE ...................................................................................... 12
CBPS-300 OPERATING INSTRUCTIONS
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List of Tables
Table 1.0 CBPS-300 SPECIFICATIONS....................................................................... 5
Table 2.0 Functional Descriptions of the CBPS-300 Controls and Indicators................ 7
Table 2.0 Functional Descriptions of CBPS-300 Controls and Indicators Cont. ............ 8
List of Figures
Figure 1.0 CBPS-300 Controls and Indicators................................................................ 6
Figure 2.0 90 to 130Vac Switch Setting.......................................................................... 9
Figure 3.0 200 to 240 Vac Switch setting ....................................................................... 9
Figure 4.0 Typical CBPS-300 Connection Diagram...................................................... 10
CBPS-300 OPERATING INSTRUCTIONS
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1.0 INTRODUCTION
1.1 General Description
Vanguard Instruments Company produces
the CBPS-300 as a microprocessor-
controlled circuit breaker DC power supply.
This device was designed to replace the
substation batteries during circuit breaker
testing.
The CBPS provides a ripple free, DC power
source to operate utility circuit breakers for
contact-timing and other breaker operations.
The CBPS-300 allows the user to operate
the OPEN and CLOSE coils of a circuit
breaker during tests under different
selectable operating conditions such as full
voltage or minimum voltage operations.
External trigger input allows the CBPS-300
to be used with the Vanguard Instruments
circuit breaker timers.
A separate DC supply is also available to
drive the breaker mechanism charging
motor.
All CBPS-300 supply outputs are over
current and short circuit protected. This
feature protects the CBPS-300 power-
supplies and eliminates the use of
conventional fuses or circuit breaker
protection circuitry.
The CBPS-300 test voltage is selectable
from 24Vdc to 250Vdc. The voltage control
knob on the CBPS-300 front panel allows
the operators to select test voltages.
Coil or charging motor voltage reading is
displayed on a 2 line by 16-character back lit
LCD screen. Push button switches marked
OPEN, CLOSE and MOTOR are used to
operate the breaker’s respected coils and
charging motor
1.2 Functional Description
The CBPS-300 is a variable voltage DC
power supply designed specifically to
perform maintenance test on circuit
breakers. The CBPS-300 DC voltage is
selectable for 24Vdc to 250Vdc. Its ripple
free DC output voltage is regulated up to 2%
voltage variation under-load; making it an
ideal device for testing circuit breaker coils
under different operating voltages.
A built-in initiate circuit allows the user to
OPEN or CLOSE breakers from the CBPS-
300 control panel.
The CBPS-300 will energize the breaker trip
or close coil for one-second duration. This
initiate circuit is over current and short
circuit protected. Reset key on the front
panel allows the user to clear the fault
condition.
An unfiltered DC supply is also available to
drive the breaker mechanism charging
motor.
A voltage control knob allows the user to set
coil or motor test DC voltage. DC voltage
output is shown on the 2 lines by 16
characters back-lighted LCD.
1.3 Furnished Accessories
The CBPS-300 is shipped with six 10-foot
test cables with “quick disconnect” type test
plugs on the unit end, and alligator clips at
the test load end. The following cables shall
also be included with the CBPS-300: One
power cord, One ground cable and a cable-
carrying bag.
CBPS-300 OPERATING INSTRUCTIONS
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2.0 CBPS-300 SPECIFICATIONS
Table 1.0 CBPS-300 SPECIFICATIONS
TYPE Special-purpose test equipment, Variable DC Power Supply
SIZE (inches) 16.8” wide by 12.6” high by 12”deep (42.6cm x 32 cm x 27cm)
WEIGHT 60 pounds (27 Kg)
INPUT POWER 120 Vac or 240Vac selectable, 50/60Hz
DISPLAY 2 line by 16 character back-lighted LCD
VOLT METER DISPLAY 0-300VDC, ±1 V
OUTPUT VOLTAGE 12 to 250 Vdc
COIL DC POWER SUPPLY
DC OUTPUT CURRENT REGULATION
24 Vdc 10A <6%
48 Vdc 10A <3%
120 Vdc 6A <2%
250 Vdc 3A <2%
CHARGING MOTOR DC POWER SUPPLY
NO LOAD VLTG LOAD CURRENT LOAD INTERVAL FULL LOAD VLTG
48 Vdc 12A 60 S 40 Vdc
48 Vdc 18A 20 S 30 Vdc
120 Vdc 12A 60 S 90 Vdc
120 Vdc 18A 20 S 70 Vdc
240 Vdc 6A 60 S 200 Vdc
240 Vdc 9A 20 S 185 Vdc
OUTPUT PROTECTION All DC outputs are over-current protected
ENVIRONMENT Operating: -10°C to 55°C; Storage: -40°C to 65°C
WARRANTY One-year parts & labor (post warranty service is available)
NOTE:
THE ABOVE SPECIFICATIONS ARE VALID AT NOMINAL OPERATING VOLTAGE AND AT A TEMPERATURE OF 25
°
C (77
°
F)
CBPS-300
SPECIFICATIONS MAY BE UPGRADED AND CHANGED WITHOUT PRIOR NOTICE.
CBPS-300 OPERATING INSTRUCTIONS
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3.0 CONTROLS AND INDICATORS
CBPS-300 controls and indicators are shown
in Figure 1.0. The leader line with an index
number points to each control or indicator,
which is then cross-referenced to a
functional description in Table 2.0. The
table describes the function of each item on
the control-panel. The purpose of the
controls and indicators may seem obvious,
but users should become familiar with them
before using the CBPS-300. Accidental
misuse of the controls may damage the
CBPS-300. Users should also be familiar
with the Safety Warnings and Cautions
found on the front page of this operator’s
manual.
Figure 1.0 CBPS-300 Controls and Indicators
CBPS-300 OPERATING INSTRUCTIONS
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Table 2.0 Functional Descriptions of the CBPS-300 Controls and Indicators
Fig. 1
Index Panel Markings Functional Descriptions
1NONE
OPEN coil voltage positive terminal. Female,
Red connector jacks used for connecting voltage
test leads.
2NONE
OPEN coil voltage negative terminal. Female,
Black connector jacks used for connecting
voltage test leads.
3NONE
CLOSE coil voltage positive terminal. Female,
Red connector jacks used for connecting voltage
test leads.
4 EXT TRIGGER
External trigger input for remote control. This
input is to be used with the Vanguard
Instruments Company circuit breaker timers.
Female, 4 pin connector.
5NONE
CLOSE coil voltage negative terminal. Female,
Black connector jacks used for connecting
voltage test leads.
6NONE
MOTOR voltage positive terminal. Female, Red
connector jacks used for connecting voltage test
leads.
7NONE
MOTOR coil voltage negative terminal. Female,
Black connector jacks used for connecting
voltage test leads.
8 FAULT
RESET
Fault LED. Led is lit when over current is
detected.
RESET switch. Reset fault condition and ready
CBPS-300 for next operation.
9NONE
LCD; 2-line by 16-character; back-lighted;
Displays coil/motor voltages.
10 120/240 Vac, 8A, 50- 60 Hz Input power connector with third-wire safety
ground and 10A built-in circuit breaker
11 NONE
Safety Ground. A 5/16 threaded stud with hand-
turned wing nut. This must be connected to the
station ground before connecting any CBPS-300
test leads to the transformer.
CBPS-300 OPERATING INSTRUCTIONS
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Table 2.0 Functional Descriptions of CBPS-300 Controls and Indicators Cont.
Fig. 1
Index Panel Markings Functional Descriptions
12 VOLTAGE
CONTROL
Voltage control knob.
13 COIL/MOTOR
Coil or Motor voltage display selection.
14 MOTOR
Motor voltage initiate switch. Depress switch to
energize motor.
15 CLOSE
Close coil initiate switch. Depress switch to
energize close coil. The CBPS-300 will
energized the close coil for 1 second period.
16 OPEN
Trip coil initiate switch. Depress switch to
energize close coil. The CBPS-300 will
energized the close coil for 1 second period.
Indice
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