DEMAND CONTROLLER OVERCURRENT-EARTH FAULT RELAY OM-310
Product Details:
| Brand | NOVATEK ELECTRO |
| Type | Numeric, Multi-functional |
| Digit Display Size | Dual LED display |
| Model | OM-310 |
| Voltage Type | AC |
| Voltage (V) | 380 – 415 V |
| Number of Poles | 3 Pole, 4 Pole |
| Current (Power) Range | 5A – 800A (2.5kW – 450 kW) |
| Application | Over Current Protection, Earth Leakage Protection, Power Monitoring and Demand Controlling |
| Contact Form | Programmable – 1 x SPDT (1NO + 1 NC) & Power – 1 x DPDT (2NO + 2NC) |
| Output Type | Potential Free |
OM-310 Numeric Power Management System is used for:
- Power Monitoring
- Demand Controlling
- Generator protection
- Overcurrent protection
- Earth leakage protection
- Voltage monitoring
- Complete load rejection when the power consumption exceeds the main threshold for a user-set time
- Partial load rejection when the power consumption exceeds the main threshold for a user-set time
- Measurement and indication of three-phase electric circut parameters (active values of phase and line voltages)
- Positive, negative and zero phase sequence voltages; active phase current values; active, reactive and full power load consumption, power factor
- Emergency signaling
- Remote monitoring and load activation/deactivation via the RS-232/RS485 interface or external switch
The device allows working with a load of 2.5 – 30 kW with the use of integrated current transformers, and with a load of up to 450 kW with the use of external current transformers, including in networks with an insulated neutral.
We offers the consumer the following protection types:
- Low-quality network voltage (unacceptable power surges, phase breaks, phase sequence disruption, phase/line voltage distortion)
- Current exceeding the maximum allowed value on any of the load phases
- Ground leakage currents
- Automated reclosing can be allowed or forbidden for each type of protection
- Electric equipment is protected by means of controlling the magnetic starter coil (contactor)
Additional Information:
- Item Code: OM-310
- Port of Dispatch: New Delhi, India
General Information:
| Purpose of device | Control and distribution equipment. |
| Assembly (mounting) type | Assembly (mounting) type |
| Enclosure protection degree | IP10 |
| Climate zone version | NC3.1 |
| Pollution degree | III |
| Overvoltage category | III |
| Wires cross section of adapters on terminals, mm2 | 0.5-2 |
| Torque of terminal screws, Nm | 0.4 |
| The maximum diameter of a wire when using internal current transformers, mm | 12 |
Basic Technical Parameters:
| Rated supply voltage: AC Three-phase, V, 50Hz | 380 – 415 |
| Mains frequency, Hz | 48-62 |
| Rated load wattage range (during operation with use of integrated current transformers), kW | 3-30 |
| Tripping threshold accuracy for wattage, % of rated wattage, at most | 5 |
| Tripping threshold accuracy for current, % of rated current, at most | 2 |
| Tripping threshold accuracy for voltage, V, at most | 3 |
| Phase imbalance detection accuracy for voltage, V, at most | 3 |
Minimum operational voltage: -single-phase voltage power supply when one phase and neutral wires are connected, V, not less – three-phase power supply voltage, V, at most | 180 450 |
Analog inputs – remote switch connection input – three analog inputs for connecting standard CT with 5A output (of Т-0.66 type or similar) – input for connecting differential current transformer (zero sequence transformer) | |
Main outputs load relay – two groups of changeover contacts -8A 250V cos φ=1; characterizing relay – one group of changeover contacts -16A 250V at cos φ=1 (the relay function is assigned by the user); | |
| Power consumption (under load), VA, at most | 5.0 |
| Weight, kg, at most | 0.5 |
Case dimensions (diagram 1.1) – nine S-type modules Mounting onto standard 35 mm DIN-rail Mounting position any | |
Output terminals of relays:
| Max. current for U~ 250 V | Number of trips х1000 | Max switching power, VА | Max sustained safe AC/DC voltage | Max. current for U = 30V D.C. |
Load relay Cos ф = 0.4 Cos ф = 1.0 | 2 А 8 А | 200 100 | 500 2000 | 440/125 V | 1.3 А |
Programmable relay Cos ф = 0.4 Cos ф = 1.0 | 5 А 16 А | 400 50 | 1250 4000 | 440/125 V | 3 А |
OM-310 complies with requirements of IEC 60947-1, ІEC 60947-6-2, CISPR 11, IEC 61000-4-2.
No harmful substances in excess of the maximum permissible concentration is available.