There are ground leakages in the networks due to reasons such as insufficiency of infrastructure, equipment failures, manufacturing faults. RCR and ELR Series Residual Current Protection Relays, which can limit these leakages in a wide range such as 30 mA and 30 A, also have a time setting between 0.02 sec and 5 sec.
The products are used for different purposes depending on their place. While there is a limitation of 25-30 mA in locations with direct human contact, this level is 250-300 mA in locations where fire control is made but there is no human contact. RCR and ELR Series Residual Current Protection Relays can do higher limitations as in both levels.
RCR and ELR Series Residual Current Protection Relays also apply residual current selectivity similar to medium voltage systems. In case of a malfunction, in order for the locations close to the malfunction to be opened first and the main supply not to be cut off; The selectivity can be adjusted with the current limit and tripping times probes on the relay.
Thanks to the test button on the RCR and ELR Series Residual Current Protection Relays, it is possible to control possible residual current relay failures. System refresh is also provided by the reset button.
Features of Aktif Residual Current Protection Relay
- Flush mounted and DIN rail mounted types
- Options with low-pass filter unaffacted by harmonics (ELR-3C-F)
- Type A and Type B (ELR-3A) versions
- Options with screen (ELR-D2-V) and without screen
- Real-time monitoring (ELR-D2-V)
- Configurable pre-alarm indication and fail-safe operation
- Wide range of sensitivities from 30mA to 3A
- Delay time setting
- Versions with RS485 communication (ELR-D2-V, and ELR-4C Series)
- Versions with 4 completely independent channels (ELR-4C Series)
Specification of Aktif Residual Current Protection Relay
FEATURES |
ELR-D2-V |
ELR-1E/RCR-1p |
ELR-3C/RCR-1d |
ELR-3C-F |
ELRC-1/RCR-T |
ELRC-1-F/RCR-T-F |
ELRC-B/RCR-Td |
TYPE |
Type A | Type A | Type A | Type A | Type A | Type A | Type A |
TECHNICAL FEATURES |
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| Installation | DIN Rail Mounted | Panel Mounted | DIN Rail Mounted | DIN Rail Mounted | Compact | Compact | DIN Rail Mounted |
| Dimensions | 36*90,4*73 | 96*96 | 52,5*85*73 | 52,5*85*73 | 45*90*74 | ||
CONTROL CIRCUIT |
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| Toroidal transformer | External | External | External | External | Internal 35-60-80-110 mm standard diameter |
Internal 35-60-80-110 mm standard diameter |
Internal 28mm |
| Adjustments tripping set-point (I∆) | 0.03÷30A | 0,025÷25A | 0,025÷25A | 0,025÷25A | 0,025÷25A | 0,025÷25A | 0,025÷25A |
| Adjustments tripping time (t) | 0,02÷10s | 0,02÷5s | 0,02÷5s | 0,02÷5s | 0,02÷5s | 0,02÷5s | 0,02÷5s |
| Prealarm set-point | 50%…trip set-point | ||||||
| Shunt tripping control | 50…90% | ||||||
AUXILIARY SUPPLY |
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| Auxiliary voltage (US) | 110 VAC – 230 VAC | 12 VAC/DC 24-48 VAC/DC 110 VAC/DC-240-415 VAC |
12 VAC/DC 24-48 VAC/DC 110 VAC/DC-240-415 VAC |
12 VAC/DC 24-48 VAC/DC 110 VAC/DC-240-415 VAC |
24-48 VAC/DC 110 VAC/DC-240-415 VAC |
24-48 VAC/DC 110 VAC/DC-240-415 VAC |
24-48 VAC/DC 110 VAC/DC-240-415 VAC |
| Rated frequency | 50-60 Hz | 50-60 Hz | 50-60 Hz | 50-60 Hz | 50-60 Hz | 50-60 Hz | 50-60 Hz |
| Maximum power consumption | 3 VA | 5,5 VA | 3 VA | 3 VA | 3 VA | ||
OUTPUT RELAYS |
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| Contact arrangement | 1 changeover (trip) | 1 changeover (trip) | 1 changeover (trip) | 1 changeover (trip) | 1 changeover (trip) | 1 changeover (trip) | 2 changeovers (both trip) |
| Rated contact capacity Ith | 5 A (240 VAC) | 5 A (240 VAC) | 5 A (240 VAC) | 5 A (240 VAC) | 5 A (240 VAC) | 5 A (240 VAC) | 5 A (240 VAC) |
INDICATIONS |
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| Auxiliary voltage available (ON) | green backlight | Green LED | Green LED | Green LED | Green LED | Green LED | Green LED |
| Alarm threshold exceeded | yellow backlight | ||||||
| Relay tripping (TRIP) | red backlight | Red LED | Red LED | Red LED | Red LED | Red LED | Red LED |
RS485 SERIAL INTERFACE |
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| Baud-rate | Programmable | ||||||
DISPLAY |
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| Type | graphic LCD with RGB backlight | ||||||
| Format | 72 x 100 pixel | ||||||
INSULATION |
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| Insulation test | 2.5kV for 1 minute | 2.5kV for 1 minute | 2.5kV for 1 minute | 2.5kV for 1 minute | 2.5kV for 1 minute | 2.5kV for 1 minute | 2.5kV for 1 minute |
AMBIENT OPERATING CONDITIONS |
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| Operating temperature | -10÷60 °C | -10÷60 °C | -10÷60 °C | -10÷60 °C | -10÷60 °C | -10÷60 °C | -10÷60 °C |
| Storage temperature | -20÷80 °C | -20÷80 °C | -20÷80 °C | -20÷80 °C | -20÷80 °C | -20÷80 °C | -20÷80 °C |
| Relative humidity | ≤90% | ≤90% | ≤90% | ≤90% | ≤90% | ≤90% | ≤90% |
ENCLOSURE |
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| Version | 2 modules DIN | 96*96 | 3 modules DIN | 3 modules DIN | Compact | Compact | 6 modules DIN |
| Degree of protection | P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
P20 terminals IP40 with protective cover |
OPTIONAL FEATURES |
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| Low Pass Filter (Harmonic Filter) | ● | ||||||
| Built-in filter for 3rd harmonic | ● | ||||||
CERTIFICATIONS AND COMPLIANCE |
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| Standards | IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
IEC/EN 61010, IEC/EN 61000-6-2 IEC/EN 61000-6-3, IEC/TR 60755 CEI EN 60947-2 Ek M |
| CE | ● | ● | ● | ● | ● | ● | ● |
