Three Phase Demand Controller Overcurrent-Earth Fault Relay OM-310

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Three Phase Demand Controller Overcurrent-Earth Fault Relay OM-310

Three Phase Demand Controller Overcurrent-Earth Fault Relay OM-310

Product Details:

 
Brand NOVATEK ELECTRO
Type Automatic
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 Range (Amps) 5A - 800A
Application Over Current Protection, Earth Leakage Protection, Power Monitoring and Demand Controlling
Contact Form Potential Free, SPDT, DPDT
Output Type Potential Free

Technical Datasheet (PDF)

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 j  = 0.4

Cos j  = 1.0

 

2 А

8 А

 

200

100

 

500

2000

440/125 V

1.3 А

Programmable relay

Cos j  = 0.4

Cos j  = 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.

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