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The APCI-600 is a programmable AC high-current source designed specifically for utility-substation applications. This device is well suited for primary injection testing of protective relays. This versatile device can also be used for testing thermal, magnetic, and solid-state motor-protection relays and molded-case circuit-breakers, as well as any application that requires a high-current source.
Built-in Timer
The APCI-600’s built-in timer can test the time delay characteristics of protection relays and molded-case circuit-breakers. Once the test is initiated, the current source and the timer are automatically turned on at the next zero crossing point of the AC. The timer stops when the APCI-600 input detects a change in the dry contact or voltage input, or detects the removal of the test current. The test results are then displayed in milli-seconds and fractions of a cycle(s) on the unit’s back-lit LCD screen (20 characters by 4 lines).
External Current Input
The APCI-600 also has an external-current input (0 – 10 A). Both the internal current source amplitude and the external current source measurement readings can be viewed at the same time.
Current Source
Test currents, ranging from 100 to 600 amperes, can be set by using the rotary dial knob on the control panel. The test current is then measured, and the results are displayed on the LCD screen. When the APCI-600 is used as a current source, the current-on time (duration of current flow) is displayed on the LCD screen.
APCI-600 Output Current and Duration Table
output @ 120 Vac |
output @ 240 Vac |
time |
5.6 Vac @ 100A |
9.5 Vac @ 100A |
1 hour |
5.3 Vac @ 200A |
9.4 Vac @ 200A |
5 minutes |
4.9 Vac @ 300A |
9.0 Vac @ 300A |
2 minutes |
4.6 Vac @ 400A |
8.2 Vac @ 400A |
1 minutes |
4.2 Vac @ 500A |
7.5 Vac @ 500A |
30 seconds |
3.9 Vac @ 600A |
7.0 Vac @ 600A |
20 seconds |
APCI-600’s Specifications
Type |
100 - 600 Amp current source |
Physical specifications |
17”W x 12½”H x 10½”D, (42.6 cm x 32 cm x 27 cm); Weight: 46 lbs (21 kg) |
Input power |
100 - 120 Vac or 200 - 240 Vac (factory pre-set), 50/60 Hz |
Internal meter range |
100 mA - 1000 A; Accuracy: 1% of reading, ±20 mA |
Measuring method |
Isolated CT |
External meter range |
10 mA - 10 A; Accuracy: 1% of reading, ±2 mA |
Measuring method |
Isolated CT |
Timer reading range |
1 ms - 2 hours; Accuracy: 0.1% of reading ±1 ms |
Timer stop input |
Voltage input (24 - 300 V, DC or peak AC), dry-contact input, or removal of primary current |
Computer interface |
RS-232C port (19,200 baud) for factory calibration and diagnostics |
Safety |
Designed to meet IEC61010 (1995), UL 61010A-1, CSA-C22.2 standards |
Environment |
Operating: -10°C to +50°C (+15°F to +122°F); Storage: -30°C to +70°C (-22°F to +158°F) |
Humidity |
90% RH @ 40°C (104°F) non-condensing |
Altitude |
2,000 m (6,562 ft) to full safety specifications |
Included Accessories |
10-foot #1/0 AWG test leads, power cord, ground cable |
Optional accessories |
Transportation case |
Warranty |
1 year on parts and labor |
NOTE: the above specifications are valid at nominal voltage and ambient temperature of +25°C (+77°F). Specifications are subject to change without notice
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