Bender PEM330 Manuel utilisateur

Power Quality and Energy Measurement

PEM330/PEM333

PEM330-333_D00004_00_D_XXEN/06.2013

2 PEM330-333_D00004_00_D_XXEN/06.2013

PEM333

Power Quality and Energy Measurement

PEM330/PEM333

Product description

The universal measuring device PEM330/333 is used to record and indicate electrical

quantities of a public electricity network. The scope of measurements ranges from currents

and voltages through energy consumption and performance to total harmonic distortion

and voltage quality assessment. The active energy measurements are in compliance with

the DIN EN 62053-22 class 0.5 S accuracy standard.The current inputs are connected via

external …/1 A or …/5 A measuring current transformers.

Typical application

• As a compact device for front panel mounting, the PEM330/333 is a replacement

for analogue indicating instruments

• Typical application in low and medium-voltage networks

(via measuring voltage transformer)

• Power quality monitoring

• Collection of relevant data for energy management systems

• Energy consumption allocation to cost accounting centers

Description of function

• Sampling rate of the measuring channels: 1,6 kHz

• Calculation of the total harmonic distortion THDU/THDI: up to the 15th harmonics

• Password protection

• Easy installation with mounting clips, no tools required

• Inputs and outputs (PEM333 only):

– 2 digital outputs

– 6 user-programmable setpoints (response values, response delay 0…9999 seconds)

– System protocol: 32 events, setup changes, DI/setpoint status changes, DO operations

• Communication (PEM333 only):

– Electrically isolated RS-485 interface (1,200 bit/s to 19,200 bit/s)

– Modbus-RTU protocol

Standards

The universal measuring device for Power Quality and Energy Measurement PEM330/PEM333

was developed in accordance with the following standards: DIN EN 62053-22 (VDE 0418

Part 3-22), DIN EN 61557-12 (VDE 0413-12)

Device features

• Accuracy class according to IEC 62053-22:

0.5 S

• Measured quantities

– Phase voltages UL1, UL2, UL3 in V

– Line voltages UL1L2, UL2L3, UL3L1 in V

– Phase currents I1, I2, I3in A

– Neutral current (calculated) I4in A

– Frequency fin Hz

– Phase angle for Uand Iin °

– Power per phase conductor S in kVA, P

in kW, Q in kvar

– Total power S in kVA, P in kW, Q in kvar

– Displacement factor cos (φ)

– Power factor λ

– Active and reactive energy import in

kWh, kvarh

– Active and reactive energy export in

kWh, kvarh

– Voltage unbalance in %

– Current unbalance in %

– Harmonic distortion (THD) for Uand I

– k-factor for I

• Programmable setpoint monitoring

(PEM333 only)

• LED pulse outputs for active and

reactive energy

• Modbus/RTU communication via RS-485

(PEM333 only)

• 2 digital outputs (PEM333 only)

• Demands of energy and current for

particular time frames

• Peak demands with timestamps

0.5S

PEM330 PEM333

RS-485 –

Digital inputs – 2

Digital outputs – 2

Sampling rate 1.6 kHz 1.6 kHz

THD calculation 15. 15.

Features

PEM330-333_D00004_00_D_XXEN/06.2013 3

Power Quality and Energy Measurement PEM330/PEM333

Operating elements

1 - Pulse LED: kWh

2 - Pulse LED: kvarh

3 - Display

4 - “SYSTEM” button: Selection (in the menu)

5 - “PHASE” button: Up (in the menu)

6 - “ENERGY” button: Down (in the menu)

7 - “SETUP” button: OK (in the menu)

Press the “SETUP” button > 1.5 s to enter/leave the Setup

menu.

kvarh

kWh

PEM333

LINETRAXX®

SYSTEM PHASE ENERGY SETUP

1 2

4 5 6 7

Example for system set-up

Modbus TCP

Ethernet

BMS 1…12

Modbus

RTU

Fileserver

PEN

Modbus TCP

Modbus RTU

PAS

PEM7xx

NSHV

UV1

1…12

RCMS

UV2

RCMS

Modbus TCP

Modbus RTU

Modbus TCP

PEM5xx PEM5xx

Modbus RTU

PEM3xx

PEM7xx

CP700

Modbus RTU

PEM3xx

NSHV = Low-voltage main distribution board

Power Quality and Energy Measurement PEM330/PEM333

4 PEM330-333_D00004_00_D_XXEN/06.2013

Wiring diagram

D+

P1 (RS-485)

DO13

• l11 l12 l22 l32L1L2L3N• l21• l31

DO14 DO23 DO24

DI1DI2 DIC A2/

A1/+

I11

I12

I21

I22

I31

I32

DO13 DO14

DO23 DO24

DI1 DI2 DIC

4 3

1 - Connection to the system to be monitored:

The measuring leads should be protected with appropriate fuses.

2 - Supply voltage. Line protection by a fast-acting 6-A fuse.

If being supplied from an IT system, both lines have to be

protected by a fuse.

3 - Digital inputs

4 - Digital outputs (N/O contacts)

Three-phase 4-wire system (TN, TT, IT systems)

The PEM can be used in three-phase 4-wire systems, independent

of the type of distribution system (TN, TT, IT system).

Three-phase 3-wire system

The PEM can be used in three-phase 3-wire systems.

The line-to-line voltage must not exceed AC 400 V.

Connection via voltage transformers

The coupling via measuring voltage transformers allows the use

of a measuring device in medium and high voltage systems. The

transformation ratio in PEM330/PEM333 can be adjusted (1…2200).

Connection diagram voltage inputs

L1 L2 L3 N

PEM

AC 400 V/230 V

L1 L2 L3

PEM

AC 400 V

L1 L2 L3 N

PEM

LV / MV / H

PEM330-333_D00004_00_D_XXEN/06.2013 5

Power Quality and Energy Measurement PEM330/PEM333

Technical data

Insulation co-ordination

Measuring circuit

Rated insulation voltage 300 V

Overvoltage category III

Pollution degree 2

Supply circuit

Rated insulation voltage 300 V

Overvoltage category II

Pollution degree 2

Supply voltage

Rated supply voltage US95…250 V

Frequency range of USDC, 44…440 Hz

Power consumption ≤ 3 VA

Measuring circuit

Measuring voltage inputs

UL1-N,L2-N,L3-N 230 V

UL1-L2,L2-L3,L3-L1 400 V

Measuring range 10… 120 % UN

Rated frequency 45…65 Hz

Internal resistance (L-N) > 500 kΩ

Measuring current inputs

External measuring current transformer

should at least comply with accuracy class 0.5 S

Burden n.A., internal current transformers

Measuring range 0.1… 120% IN

PEM330/333

IN5 A

Measuring current transformer ratio 1…6000

PEM330-251/PEM333-251

IN1 A

Measuring current transformer ratio 1…30000

Accuracies (of measured value/of full scale value)

Phase voltage UL1-N, UL2-N, UL3-N ±0.2 % of measured value

Current ± 0.2 % of measured value + 0.05 % of full scale value

Neutral current I41 % of full scale value

Frequency ± 0.02 Hz

Phase position ± 1 °

Active energy measurement according to DIN EN 62053-22 (VDE 0418 Part 3-22)

r.m.s. voltage measurement according to DIN EN 61557-12 (VDE 0413-12), chapter 4.7.6

r.m.s. phase current measurement according to DIN 61557-12 (VDE 0413-12), chapter 4.7.5

Frequency measurement according to DIN EN 61557-12 (VDE 0413-12), chapter 4.7.4

Interface*

Interface/protocol RS-485/Modbus/RTU

Baud rate 1.2…19.2 kbits/s

Cable length 0…1200 m

Shielded cable (shield connected to terminal SH on one side) recommended: J-Y(St)Y min. 2 x 0.8

Switching elements*

Outputs 2 N/O contacts

Operating principle N/O operation

Rated operational voltage AC 230 V DC 24 V AC 110 V DC 12 V

Rated operational current 5 A 5 A 6 A 5 A

Minimum contact rating 1 mA at AC/DC ≥ 10 V

Inputs 2 electrically separated digital inputs

Imin 2.4 mA

UDI DC 24 V

Environment/EMC

EMC DIN EN 61326-1

Operating temperature -25…+55 °C

Climatic class acc. to DIN EN 60721

Stationary use 3K5

Classification of mechanical conditions acc. to DIN EN 60721

Stationary use 3M4

Connection

Connection screw-type terminals

Other

Degree of protection, installation IP20

Degree of protection, front IP54

Operating manual TGH1476

Weight ≤ 550 g

* PEM333 only

Bender GmbH & Co. KG

P.O.Box1161•35301Gruenberg•Germany

LondorferStraße65•35305Gruenberg•Germany

Tel.:+496401807-0•Fax:+496401807-259

E-mail:[email protected]•www.bender-de.com BENDER Group

Subject to change! – PEM330-333_D00004_00_D_XXEN/06.2013 / Schw / © Bender GmbH & Co. KG, Germany

Dimension diagram

Dimensions in mm

18 1862

9691

Panel cut out

Dimensions in mm

Interface Digital inputs/outputs Current input Type Art. No.

– – 5 A PEM330 B 9310 0330

1 A PEM330-251 B 9310 0331

RS-485 2/2 5 A PEM333 B 9310 0333

1 A PEM333-251 B 9310 0334

Ordering information

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Ce manuel convient aux modèles suivants

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