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HF-TC-611 Transformer Winding Thermostat Calibration Bench
This Transformer Winding Thermostat Calibration Bench provides stable and accurate temperature simulation and current excitation. It calibrates indication errors and switch actions automatically while recording test data for transformer temperature control routine inspection.
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The oil surface temperature and winding temperature of the HF-TC-611 transformer are critical parameters reflecting the operating status of the transformer. Calibrating these temperatures effectively promotes substation safety and refined management.
This device performs verification and calibration for transformer oil temperature controllers, winding temperature controllers, temperature transmitters and digital temperature indicating controllers (remote temperature indicators for transformers). It conducts incoming inspections for new substation equipment and performance assessments for instruments removed during maintenance overhauls.
Features & Main Functions
Easy Operation
Complete all calibration items with a single wiring connection without secondary disassembly and reassembly. Simple on-site wiring plus quick pluggable wiring terminals, with multiple combination schemes covering all transformer temperature measurement calibration tasks.
High Working Efficiency
Intelligentized equipment with straightforward operation and powerful, comprehensive software functions
Advanced Hardware Configuration
Equipped with a dedicated intelligent precision constant-temperature bath (-20–180°C) with adjustable heating and cooling rates. Multi-level overtemperature safeguards ensure safe and reliable operation of the temperature laboratory.
Professional Temperature Source
The intelligent precision constant-temperature bath covers -20–180°C with outstanding temperature stability and uniformity. The adjustable temperature rise rate meets calibration requirements for all types of temperature switches.
Professional Temperature Measuring Instruments
Compared with conventional electrical instruments, these devices are optimized for high-precision temperature measurement performance.
Streamlined On-site Wiring
The system adopts optimized networking layout. The built-in temperature controller inside the constant-temperature bath eliminates messy communication cables, power cords and test wires on-site for a tidy laboratory environment.
Dual High-temperature Overheat Protection
High-temperature runaway is a key safety concern for temperature laboratories. This constant-temperature bath has dual high-temperature overheat protection including software thermal protection and independent hardware thermal protection, greatly improving laboratory safety and reliability.
Friendly Human-machine Interaction
Large-screen operation delivers easy handling, supporting one-click firmware upgrade, mass data storage and complete USB communication interfaces.
Technical Specifications
- Operating Power Supply: AC220±10% V, 50±1 Hz
- Temperature Range: -20 ~ 180°C; Accuracy Class 0.5; no replacement of liquid medium required during operation
- Rated Power: 2.0 kW
- Constant Temperature Performance: Stability ≤0.04°C/10min; Measurement fluctuation ≤0.02°C/1min
- Uniformity inside the constant-temperature bath: ≤0.02°C
- Opening Diameter of Constant-temperature Bath: ≥130 mm
- Liquid Depth of Constant-temperature Bath: ≥400 mm
- Heating Time: 0°C to 180°C; heating rate configurable between 0.8°C/min ~ 2.0°C/min
- Cooling Time: +50°C → 0°C (35 min); 180°C → +50°C (45 min)
- Reference Current Generator: 0.5 ~ 5000 mA
- Equipment Structure: Split type (main unit + suspension rack)
- Measurement & output channels: Electrically isolated and protected mutually for improved safety
- Applicable Scope: Calibration for oil temperature controllers, winding temperature controllers, remote transmitters, pressure-type thermometers and glass tube liquid thermometers
- Calibration Items for Winding Temperature Controllers: Indication error, return error, repeatability test, contact action error, switching difference test and thermal simulation test
- Working Medium: Low-temperature silicone oil
- Control Mode: Microcomputer measurement & control
- Contact Point Adjustment: Automatic collection of contact signals with repeatable adjustment and testing of contact points
- Automatic Calibration: Completes fixed-value detection, contact action testing and repeatability verification automatically during heating and cooling cycles
- Liquid Level Control Function: Automatically adjusts liquid level to prevent unreliable test results caused by excessively high or low liquid levels
- Pressure Protection Function: The refrigeration system features overpressure and underpressure protection to avoid temperature control failure induced by abnormal pressure
- High Integration: A single unit handles high, medium, low and ice-point temperature testing without replacing the liquid medium
- Voice Prompt Function: Real-time voice prompts during calibration for superior human-machine operability
- Intelligent Calibration Result Analysis: Automatically analyzes and judges test data in accordance with national standards
- Test Report: Calibration records are auto-generated with customizable A4-format test reports.
Purpose of Transformer Winding Thermostat Calibration Bench
This calibration bench calibrates transformer oil temperature controllers, winding thermostats, temperature transmitters, pressure thermometers and glass liquid thermometers.
It tests indication error, contact action performance, repeatability and thermal simulation characteristics of temperature instruments.
It carries out incoming acceptance inspection for new substation temperature equipment and performance evaluation for disassembled meters during transformer maintenance, ensuring safe operation and refined management of power substations.
It tests indication error, contact action performance, repeatability and thermal simulation characteristics of temperature instruments.
It carries out incoming acceptance inspection for new substation temperature equipment and performance evaluation for disassembled meters during transformer maintenance, ensuring safe operation and refined management of power substations.
Packing List – Transformer Winding Thermostat Calibration Bench
| No. | Item | Quantity |
|---|---|---|
| 1 | Main control host | 1 unit |
| 2 | Intelligent precision constant temperature bath | 1 set |
| 3 | Suspension mounting rack | 1 set |
| 4 | Standard current generator module | 1 set |
| 5 | Standard temperature sensor, test cables, gaskets, test clamps | 1 set |
| 6 | Calibration software USB drive, operation manual, factory calibration certificate | 1 set |
| 7 | Spare fuses and protective components | 1 set |
| 8 | Power cord, USB cable, maintenance tool kit | 1 set |
FAQ – Transformer Winding Thermostat Calibration Bench
Q1: What temperature range can this calibration bench support?
A: Its built-in precision constant temperature bath works from -20°C to 180°C, with a temperature accuracy of 0.5 grade, no need to replace liquid medium during operation.
Q2: What kinds of devices can this bench calibrate?
A: It is applicable to oil temperature controllers, winding thermostats, temperature transmitters, pressure thermometers and glass liquid thermometers for transformers.
Q3: What calibration items can the equipment finish automatically?
A: It automatically completes indication error, return error, repeatability test, contact action error test, switching difference test and thermal simulation test during heating and cooling processes.
Q4: What is the function of the built-in current generator?
A: The 0.5~5000mA reference current generator simulates the actual working current of transformer windings to realize real thermal state simulation calibration.
Q5: Does the device have multiple safety protection designs?
A: Yes. It is equipped with dual high-temperature overheat protection, liquid level automatic adjustment, as well as overpressure & underpressure protection for the refrigeration system to avoid equipment failure and unsafe testing.
Q6: Is the test report editable and customizable?
A: Calibration records can be generated automatically in A4 format, and the report template supports customized revision according to user requirements.
Q7: What medium is used inside the constant temperature tank?
A: Low-temperature silicone oil is adopted as the working medium, featuring stable temperature performance and long service life.
Q8: Is the equipment structure easy for installation and operation?
A: It adopts a split structure of main unit plus suspension frame, matched with dedicated fixtures; it supports one-time wiring to finish all calibration tasks with simple field layout.
Q9: Does the machine support data export and equipment upgrade?
A: It is equipped with complete USB interfaces, supporting one-click program upgrade, mass storage of test data and data export.
Q10: Why does this bench adopt dual hardware and software overheating protection?
A: Dual protection effectively prevents temperature runaway accidents in the laboratory, greatly improving the safety and stability of long-term continuous calibration work.
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