Leak relay
Leak relay LR-01 is designed for integration into mine set (compact) stations and start-protection apparatus with voltage up to 1140 V of alternate current and frequency 50 Hz, which functions as a leak current control device used for electric networks of alternate current, frequency 50 Hz and voltage up to 1140 V with insulated transformer neutral.
Climatic version MCC (moderately cold climate) location category 5 according to State Standard 15150-69.
Relay electrical diagram is to:
- permanently control active insulation resistance and leaks being under operation voltage and attached to the network relay;
- disengage with time delay the device feeding the relay-integrated apparatus;
- reactivate actuating relays in case controlled circuit resistance rises for 5 kOm against setting value;
- provide analog output with the voltage proportionate to current insulation resistance;
- provide light signaling upon relay operation.
Basic specifications:
Parameter | Value |
Rated power supply voltage, V | 42 |
Network frequency, Hz | 50±1 |
Maximum wattage, W | 3.6 |
Deactivation threshold setting range, kOm | 10 — 100 |
Warning threshold setting range, kOm | 20 — 200 |
Extreme voltage deviation from the rated voltage, % | +15; — 20 |
Output deactivation delay “A7-B3,B6”, c | 2.5 — 3 |
Measurement voltage, V | 100 |
Measurement current, mA | 1.2 |
Maximum voltage switched by alternate current actuating relay contacts, V | 60 |
Minimum current switched by actuating relay contacts, A | 2 |
Dimensions, mm | 143x130x40 |
Maximum weight, kg | 0.3 |
Operational mode — continuous | S1 |
Ingress protection rating | lP30 |
Ambient temperature, ° C | from — 10 to + 35 |
Relative air humidity at the maximum temperature (35±2)° C, % | 98±2 |
Maximum altitude above sea level, m | 1000 |
Minimum average error-free running time, h | 10000 |
Minimum average operating life, years | 6 |
Example of relay order record
“Leak relay LR-01 TU BY 600175052.009-2005”.
See also
