Sai Creations

Lohia Nagar, Ghaziabad, Uttar Pradesh

JVS Relay - JVS make Auxiliary Relays JRV-161The auxiliary contact is often used in a relay logic circuit, or for some other part of the motor control scheme, typically switching 120 Volt AC power instead of the motor voltage. . They are not fuses; that is, it is not their function to burn open and directly break the circuit as a fuse is designed to do.It's a way to open or close a circuit breaker. There are open and close coils in large, multiphase breakers. These can be activated by applying auxiliary voltage to them via the auxiliary relay. This allows control over the breaker remotely or automatically to apply or remove power from a load.

Master trip relays are generally a contact multiplication relay whose coils operates on 220V DC and have multiple NO & NC contact for extending tripping command to circuit breaker trip coils, providing CB interlock, contacts for extending events to control room or SCADA.

The Relays JRD 011 & JRD 013 are current operated Microprocessor based, differential relays which work on the high impedance principle. An external series stabilizing resistor is used with this relay to make it a voltage operated relay. The voltage setting of the relay is adjusted to be higher than that developed by the current transformers used for maximum external fault conditions. JRD 011 is a single pole relay where as JRD 013 is a triple pole relay.

The auxiliary relays are electromechanical, attracted armature type, used in control and alarm circuits. There relays are designed as plug-in elements with the plug-in base having 16 terminals per element. Each element is enclosed in a dust proof moulded, transparent, polycarbonate cover. There is no hard wiring between the relay element and the rear terminals on the base. This results in a compact rugged and reliable design. Radio metal is used for the magnetic components such as the armature, the core and the yoke of the auxiliary relay to ensure good electrical performance. The contacts are made from phosphor bronze and are nickel plated. The contact tips are of pure silver. The use of these materials ensures very good contact performance.

JVS Make Trip Circuit Supervision TCS Relay JRV911.We are ranked amongst the most trusted firms deeply engaged in offering a wide range of JVS Make Trip Circuit Supervision RelayTCSR monitors the healthiness of the trip circuit of breaker. Basically the circuit drives a small current through the breaker trip coil and monitors it continuously. If there is any failure in the trip circuit or trip coil circuit, the relay will sense and operate it's output contacts. About 400ms delay is introduced to prevent false indication during circuit breaker operation. A test button is provided to test the relay contacts for trip and alarm in healthy condition only.

The ADR141S is self powered relay, Non-communicable 3 OC and 1 EF with Instantaneous high set specially designed for Protection of Ring Main Unit or compact sub-station where no any external power supply is not available.

JND 098/096/096P provides directional over current protection for power systems. Relay operating time is determined by selecting definite time characteristics or one of the four inverse time characteristics i.e. (3s normal inverse, 1.3s normal inverse, very inverse and extremely inverse). The operating region is defined by the characteristic angle selected. The relay measures the current and voltage from each of the phases and if the phase angle in the operating zone of the relay, then the relay extends trip signal.

The sensing Voltage is applied to the input terminals of the relay. The applied voltage is amplified and fed to a Voltage Comparator. Output of the comparator is applied to the processor. The Program residing in the CPU performs the function of measurement and extends a trip signal after the set time delay is reached. The Relay contacts are self reset type and indications are latched, RESET button provided on the front of relay to clear these latched indications. TEST button is provided to test the relay contacts for trip and alarm circuits.

High speed tripping relays are electromechanical, attracted armature type, used in control and alarm circuits. There relays are designed as plug-in elements with the plug-in base having 16 terminals per element. Each element is enclosed in a dust proof moulded, transparent, polycarbonate cover. There is no hard wiring between the relay element and the rear terminals on the base. This results in a compact rugged and reliable design. Radio metal is used for the magnetic components such as the armature, the core and the yoke of the relay to ensure good electrical performance. The contacts are made from phosphor bronze and are nickel plated. The contact tips are of pure silver. The use of these materials ensures very good contact performance. Each element can be offered as - 3 NO + 1 NC or 2 NO + 2 NC to be specified while ordering.

High Speed Tripping Relays are electromechanical, attracted armature type, used in control and alarm circuits. There relays are designed as plug-in elements with the plug-in base having 16 terminals per element. Each element is enclosed in a dust proof moulded, transparent, polycarbonate cover. There is no hard wiring between the relay element and the rear terminals on the base. This results in a compact rugged and reliable design. Radio metal is used for the magnetic components such as the armature, the core and the yoke of the relay to ensure good electrical performance. The contacts are made from phosphor bronze and are nickel plated. The contact tips are of pure silver. The use of these materials ensures very good contact performance. Each element can be offered as - 3 NO + 1 NC or 2 NO + 2 NC to be specified while ordering.

JRV 202 provides under voltage protection and JRV 212 provides over voltage protection for DC systems. Relay operating time is determined by set definite time through front DIP switches. The relay measures the input voltage and if it exceeds the set threshold, it extends a trip signal after the operating time. The relay output contacts are self reset type. TEST button facilitates testing of relay output contacts for trip and alarm circuits.