CIRCUTOR MK-363-B User Manual

3 PHASE ENERGY ELECTRONIC

METERS

MKB-363-M

INSTRUCTION MANUAL

( M98119801-20 / 04A )

(c)

CIRCUTOR S.A.

-- MKB-363-M ELECTRONIC METERS -- M-981198 -- Page Nº 2

THREE-PHASE THREE-WIRE ACTIVE ENERGY
ELECTRONIC METERS TYPE: MKB-363-M

1.- BASIC INSTRUCTIONS

1.1.- Delivery spot check

This manual is issued to help all the ENERGY METERS users
to install and use them in order to get the best from them. After
receiving the unit please check the following points:

(a) Does this device correspond to your order specifications?
(b) Check if any damage was done during the shipment
process.
(c) Verify that includes: one instruction manual.

1.2.- Safety considerations

This manual contains information and warnings that must be
followed for operating the ENERGY METER safely and
maintaining the instrument in a safe operating condition.

-- MKB-363-M ELECTRONIC METERS -- M-981198 -- Page Nº 3

2.- MAIN CHARACTERISTICS

Three-phase electronic energy meters for low voltage
networks at 230 V a.c. ( code 771 053 ) or 400 V a.c.
( code 771 054 ) , provided with mechanical rotatory display,
which are designed to measure the active energy consumed by
a three-phase three-wire loads Those are suitable for such
installations where a partial energy consumption analysis is
required.

Direct connection for the voltage signal (3 x 230 V a.c. ) or
( 3 x 400 V a.c.) and current through current transformers inside
phases L1 and L3.

Available models

:

- Meter type MKB-363M:
Three-phase three-wire active energy meter single tariff with
build-in current transformers. Display by means of an
electromechanical integrating meter in kW·h.

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Basic Features:

- Active energy computation algorithm uses Aron connection

principle, so phases L1 and L3 include current transformers
and L2 is the voltage reference phase. This allows to use this
active energy meter in any three-phase three-wire system
without neutral or earth currents.

- All energy meters operate over two quadrants: consumed

power.

- Current transformer (only phases L1 and L3):

nominal current : 63 A
maximum current : 90 A

- Electrical accurancy : Class 2

- All energy meters have two pulse outputs: one for the kW·h

consumed and the other with a timer. The energy output
permits a remote transmission of the measurement of the
kW·h consumed to a PLC or an energy meter centralisation
unit like CIRCUTOR LM24. The timer output allows to
compute the average active power for 15’ periods.

-- MKB-363-M ELECTRONIC METERS -- M-981198 -- Page Nº 5

Pulses

:

- Optocoupled outputs (2500 V respect to the electric network)

- Open collector type: 100 ms of duration

max. ratings 35 Vdc/30 mA

both outputs share the same common

Energy output

- Energy ratio : 100 pulses/kW·h

Timer output

- Timer ratio : 4 pulses/h

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- The meter has two LED’s at its frontal cover:

• a green LED of POWER, which indicates that the meter
is connected to the supply

• a red LED for the metrology control and the energy flow
visualisation (it blinks only with consumed power).

Such led blinks each 10 W·h.