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Power Automation and Protection Division
1
TECHNICAL
1.1
Principle of Operation
Phase Comparison, Single-Comparer and Dual Comparer using Low Speed Power Line
Carrier (ON-OFF and FSK), Audio Tone and Microwave.
1.2
Miscellaneous
Nominal ac Voltage
Nominal ac Current (In)
Rated Frequency
Maximum Permissible ac Voltage:
• Continuous
• 10 Second
Maximum Permissible ac Current:
• Continuous
• 1 Second
Operational
Thermal
dc Battery Voltages:
Nominal
60/48 Vdc
110/125 Vdc
220/250 Vdc
dc Burdens:
Battery
ac Burdens:
Volts per Phase
Current per Phase
2
EXTERNAL CONNECTIONS
Terminal blocks located on the rear of the chassis suitable for #14 square tongue lugs.
Wiring to FT-14 switches suitable for #12 wire lugs.
REL 352 Version 1.00
Section 2. REL 352 SPECIFICATIONS
(VLN) at 60 Hz
0.02 VA at 70 Vac
69.3 V rms
1 or 5 A rms
50 or 60 Hz
160 V rms
— (limited by maximum input to A/D converter)
240 V rms
— (limited by input transformer flux density)
15 A rms
— (limited by thermal characteristics)
160 A rms - 5 A nominal
32 A rms - 1 A nominal
— (limited by maximum input
to the A/D converter)
500 A
Input Range
38 - 70 Vdc
88 - 150 Vdc
176 - 280 Vdc
15 W normal
40 W tripping
0.45 VA at 5 A
I.L. 40-201.9
2
2-1
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