Dry-Type Transformer Temperature Relay

Product Description
The Dry-Type Transformer Temperature Relay is a sophisticated monitoring and control device designed for precise temperature management in transformer applications. This professional-grade instrument features comprehensive protection mechanisms, including trip functionality, automatic/manual fan control, and independent heat monitoring across multiple sets. With a high-visibility 0.8" Super Red LED display and range of -50°C to 200°C, it ensures accurate temperature readings within ±1°C at 23°C±3°C. The relay incorporates advanced safety features such as surge protection, EMI/RFI resistance, and isolated digital outputs with RS-485 communication capabilities. Its robust construction includes independent power and fan fuses, keyboard lock functionality, and a metal crust housing with IP51 panel waterproofing. The device offers adjustable alarm settings, deadband control, and maintains exceptional stability with ≤0.2% drift per year. Operating efficiently in temperatures from -40°C to +55°C, this relay is ideal for demanding industrial environments requiring reliable temperature monitoring and control.

Product Scenario
The Dry-Type Transformer Temperature Relay represents a sophisticated monitoring and protection solution for critical transformer applications. This advanced device features comprehensive temperature control with three to four independent heat monitoring sets, coupled with both automatic and manual fan control capabilities. The system displays temperatures from -50°C to 200°C on a bright, super red LED display, ensuring optimal visibility. With its robust protection features, including surge resistance and EMI/RFI immunity, this relay provides reliable operation in demanding industrial environments. The device incorporates dual protection through independent power and fan fuses, while offering sophisticated alarm and trip functions with adjustable settings. Its metal housing with IP51 waterproof rating ensures durability, while the digital linear amending and RS-485 communication capabilities enable precise control and monitoring integration. Notable features include memory maximum temperature tracking, triple fleeting average temperature monitoring, and an intelligent fan cycling system. The relay operates effectively in temperatures from -40°C to +55°C, making it suitable for diverse industrial applications where reliable transformer temperature monitoring is crucial.

Product Advantage
The Dry-Type Transformer Temperature Relay is a sophisticated monitoring device offering comprehensive thermal protection and control capabilities. This advanced relay features triple/quadruple independent heat monitoring, automatic and manual fan control systems, and precise temperature measurement ranging from -50°C to 200°C displayed on a super-bright red LED. With ±1°C accuracy at 23°C±3°C, it ensures reliable temperature monitoring. The unit incorporates multiple safety features including surge protection, EMI/RFI resistance, and independent fuse protection for both power and fan circuits. Its isolated digital RS-485 output supports multiple baud rates, while the alarm system provides adjustable high warning settings with LED indicators and audible alerts. The relay's robust construction features a metal housing with IP51 waterproof rating, capable of operating in temperatures from -40°C to +55°C with 20-95% non-condensing humidity. Key advantages include digital linear amendment capability, keyboard lock functionality, automatic fan cycling, and comprehensive circuit protection, making it an ideal choice for industrial transformer monitoring applications.

Feature : 1.Trip function 2.Auto/Manual Fans 3.80db/ Silent Buzzer. 4.Three or four sets of Independent heat.

5.Memory Max. ℃. 6. three sets of fleeting average temperature. 7. The fan stands alone with hidden f

8.The power stands alone with hidden fuse. 9. Test the output contacts at log on.

10. The fans run automatically in a cycle. 11. With keyboard lock.

Display Range : -50 ~ 200℃, 0.8" Super Red LED, 3 digits = 0～±999 Counts. 14 groups of pilots.

Accuracy : ± 1℃ at 23℃±3℃

Insulating Impedance : ≦500V, WithIN 20MΩ

Protection : Display E01, the Alarm contacts and sounds when sensor detects Open or Short Circuit.

Output Protection : Without Damage for Output Open or Short Circuit. Resist Surge, EMI, RFI.

Analog Output Load : Isolated Type. Current Type≦ 7V DC.

Digital Output : Isolated Type. RS-485 output, Buad Rate: 1200,2400,4800,9600,19200 ; selectable.

Linear Amend : Digital linear amending.

Dielectric Strength : 2.0KV AC / Min, between Input / Output / Power / Case.

Impulse : 2.0KV 1.2X50uS.ANSI C62.41/1981.DIN IEC255-4,IEC 688-1992

Concussion : Continuously swash : 10g,11ms; half sine wave 1000 times.

Power Fuse : Protect independently 250V AC 0. 1A (5 ø×20L CLA RL).

Fans 1&2 Fuse : Independently protect charged A contact & 250V AC10A PF=1.0 (6.3 ø×32.3L CLA RL)

* When it is DC power, the fans are not charged.

Alarm Setting : High warning type, selectable. Each alarm contact has a LED light which will make sounds as acting.

Setting Range : 0 ~ 199 Counts. Adjustable.

Deadband : 0 ~ 199 Counts. Adjustable. It will regress when the contacts return to low value at deadband.

Alarm Function : 1A;1B contact & 250V AC 5A

Trip Function : 1A;1B contact & 250V AC 5A

The Fourth Input : Independen high temperature alarm setting (no concerning with A.B.C).

The Fourth Contact : The user can set the temperature freely. Isolate the contact A & 250V AC 5A.

Stability : ≦0.2% Drift Per Year.

Temperature Coefficient : ≦100ppm / ℃ From 0 ～ 60℃；≦60ppm/25℃ ±5℃.

Operating Condition : –40℃ ~ ＋55℃ 20 ～ 95% RH Non-Condensed.

Storage Condition : –40℃ ~ ＋65℃ 20 ～ 95% RH Non-Condensed.

Housing Material : Metal crust. Panel waterproof level: IP51.

Case : The panel beset half to fix.