Description

RGU2, Residual current relay

Code: P11A61.

• Módules: 2
• Nº relays: 1
• IΔn (A): 0,03 … 5 A
• Power supply (Vac): 120…230 Vac
• Delay: 0,1 … 5 s, INS, SEL (*1)(*2)
• Mounting: DIN rail

 

INFORMATION

DESCRIPTION

Electronic industrial residual current protection relay, compatible with the WGC series protection transformers.

Ultra-immunised type-A relay, with high-frequency current filtering and high immunity. True root mean square (TRMS) measure.

• Programmable with backlit LCD display:

• Sensitivity and trip time
• Output contact status.
• Protection status messages.
• Real-time level of leakage.

• LED bar showing the percentage leakage current measured by the unit.
• Features two independent programmable outputs (main and prealarm / relay fault).
• Assembly on DIN 46277 rail (EN 50022), 2 modules.
• Locking the programming menu with the keyboard or by sealing the PROG button.
• RCM and MRCD in the same unit (see connections)

APPLICATIONS

The RGU-2 relays associated with WGC transformers offer smart and robust residual current protection against all types of unwanted tripping. Since these residual current relays only take up 2 modules of space, include an LCD display, a bar LED and are fully programmable, they are essential for protecting people and for preventive maintenance of the installations.

SPECIFICATIONS

AC POWER SUPPLY, INSULATION

Pulse test (kV)

4kV

AC POWER SUPPLY

Installation category

CAT III 300 Vac (IEC 61010)

Consumption

6 VA

Frequency

50/60 Hz

Nominal voltage

120 … 230V ~

MECHANICAL CHARACTERISTICS

Size (mm) width x height x depth

35 x 112 x 84 (mm)

Envelope

Polycarbonate V0

Torque setting

0.5-0.6 Nm

Cable gauge at power supply terminals

1-1.5 mm2

Fastening

DIN rail

Weight (kg)

0,14

ENVIRONMENTAL CHARACTERISTICS

Protection class

IP 40

Relative humidity (without condensation)

5 … 95 %

Storage temperature

-25 … +70 ºC

Working temperature

-10 … +50 ºC

CURRENT MEASUREMENT CIRCUIT

Transformation ratio

Transformer type TP-WG, WG o WGC de 500/1

STANDARDS

Electrical safety, Maximum height (m)

2000

Electrical safety, Contamination level/class

Pollution resistance 2

Standards

IEC 60947-2 Anexo M, IEC 62020

OTHER DIGITAL RELAY OUTPUTS

Thermal current (Ith)

5 A

Maximum switching capacity

1250 VA, 150 W

Insulation voltage

2000 V ~

Maximum open contact voltage

1000 V ~

Electrical life

105 (a 3 A)

DIGITAL RELAY OUTPUTS

Thermal current (Ith)

10 A

Insulation voltage

2500 V ~

Maximum open contact voltage

1000 V ~

Electrical life

30 x 10³ ( a 3 A)

Maximum switching capacity

2500 V ~

MEASUREMENT ACCURACY

Phase current measurement

< 10 %

DIFFERENTIAL PROTECTION

Type

Type A ultra-immunised

Sensitivity (I∆n), A

0,03 … 5

Delay time (t∆)

0,01 … 5 s

Transformer

External, WGC series

PROTECTION

Measure

True root mean square (TRMS)

Circuit breaker type

Contactor or Circuit Breaker + trigger coil