Why Industries Should Opt For Siemens 7PJ13 Relay Trip Circuit Supervision

The Siemens 7PJ13 Relays are electronic-circuit-based relays. These relays are a member of the Siemens Reyrolle protection devices family. 7PJ13 Trip Circuit Supervision Relays are used to monitor & supervise the integrity of a circuit-breaker’s trip coil and other wiring circuits of low-voltage and medium-voltage networks.

Features Of Siemens 7PJ13 Relay

The Siemens 7PJ13 Relays are connected with a circuit breaker to monitor the trip circuit and its positions (make or break). The 7PJ13 generates a trip circuit failure alarm when the trip circuit supply is disconnected. It also generates a trip circuit failure alarm if the trip circuit connection is changed to an open circuit. Trip circuit continuity is calculated by supplying the supervision current of 0.7 mA up to 1.5 mA and sensing the current flow with two optocouplers. The circuit-breaker contact displays the status of the relay if the circuit-breakers are in a make position or a break position.

• A universal auxiliary voltage range with a very low burden (i.e.) AC 24 V to AC 240 V/DC 24 V to DC 240 V & AC 110 V to AC 240 V/DC 110 V 20 DC 240 V at less than 4 W.
• It has a universal supervision voltage range (DC 24 V to DC 240 V).
• A compact design 96 x 48 mm (Width x Height)
• Fitted with flush-mounting
• Continuous supervision of trip circuits in pre-closed, post-closed conditions, and latched trip conditions.
• Detects faults like auxiliary voltage loss & circuit breakage in supervised circuits.

• A single LED with dual colours Indicates operational status.
• The relay complies with IEC 60255 standards

Functions Of Siemens 7PJ13 Relay

• The Trip Circuit Supervision Relays Are Used In The Following Field ApplicationsReference
• The relays are used for monitoring activities. The trip circuit wirings are supervised from the positive supply to the negative supply when the circuit breaker is either in a make position or a break position.
• The relays are used for detecting & generating a circuit-breaker alarm if the trip circuit supply has failed.
• The relays are used to generate an alarm if the trip signal is received but the circuit breaker fails to operate.
• The binary outputs can be wired onto numerical protection relays to indicate the faulted circuit to remote SCADA.

Type Testing

This section describes the type testing performed with Trip Circuit Supervision Relay under different environmental conditions.

• Insulation Resistance Reference IEC 60255-5 IEC 60255-27
• Hi Voltage (Dielectric) Voltage Reference IEC 60255-5, IEC 60255-27
• Impulse Voltage Withstand Test Reference IEC 60255-5, IEC 60255-27
• 1 MHz Burst High-Frequency Disturbance Test Reference IEC 60255-22-1
• Immunity to Electrostatic Discharge Reference IEC 60255-22-2
• Electrical Fast Transient Or Burst Requirements Reference IEC 60255-22-4
• Siemens 7PJ13 Relay Surge Immunity Test Reference IEC 60255-22-5
• Immunity to Radiated Electromagnetic Energy Reference IEC 60255-22-3
• Radiated Immunity from Digital Radio Telephones Reference IEC 60255-22-3
• Immunity to Conducted Disturbances Induced by Radio Frequency Fields Reference IEC 60255-22-6
• Power Frequency Magnetic Field Immunity Reference IEC 61000-4-8
• Conducted Emissions Reference IEC 60255-25
• Radiated Emissions Reference IEC 60255-25
• Power Supply Test Reference IEC 60255-11
• Siemens 7PJ13 Relay Vibration Test Reference IEC 60255-21-1
• Shock and Bump Reference IEC 60255-21-2
• Seismic Test Reference IEC 60255-21-3
• Degree of Protection Reference IEC 60529 & IEC 60255-27
• Cold Test Reference IEC 60068-2-1
• Dry Heat Test Reference IEC 60068-2-2
• Storage Test Reference IEC 60068-2-1 & IEC 60068-2-2
• Damp Heat Test Reference Cyclic IEC 60068-2-30
• Rated Burden of Auxiliary and Supervision Circuit Reference IEC 60255-6
• Contact Performance at a defined rate of operation Reference IE C60255-6
• Contact Test Reference IEC 60255-23

Siemens is one of the most trusted and oldest leading MNCs in India thanks to its quality products for diverse types of power systems. To get the best deal on Siemens 7PJ13 Relay contact us as Reliserv Solution is the authorized Supplier and also Channel Partner of SIEMENS Make Numerical Relays, Automation Products, Power Quality Meters & Instruments, MV Switchgear Spares, PSS SINCAL Software. We Reliserv Solution are the leading Reyrolle products supplier and exporter in Mumbai, Maharashtra. We also provide a wide range of services & customized solutions for Industries & Panel Builders. Contact us at +917506112097 or mail us your requirements at [email protected]. We deal in a wide range of products in Siemens Reyrolle to learn more about our Siemens Numerical Relay collection click here.