Special aging test device for electric energy meter

Special aging test device for electricity meters (80 meter position)

Product description and application (Call me 183---6802--1332）

Watt-hour meter special aging test device (80) mainly is to carry out high temperature go word aging test of watt-hour meter industry, products by setting certain environment of temperature, load, a certain amount of current, voltage, running time, record the accuracy of the watt-hour meter away words, to determine electric meter precision under the condition of the high temperature aging.

Technical parameters

(1) working size: (W)1870 x(D)600x(H)2060 (mm)

(2) external dimension: (W)2850 x(L)820x(H)2440 (mm)

(3) installation of table bits: 80 table bits

(4) temperature range: RT+15 ℃ ~ +100℃ (set within the range)

(5) temperature deviation: ≤±2.5 (no load)

(6) temperature fluctuation degree: ≤±1℃

(7) heating rate: heating rate is 1℃-5℃/min

(8) electrical source voltage: 220V -- 240V

(9) electrician source current: 3A -- 5A

(10) circulation mode: forced wind circulation system

(11) power supply voltage: 380V±10% three-phase five-wire system

(12) rated power: 6.5KW

Enclosure structure

The test box is of separate structure, the control system and the laboratory can be independent or disassembled, the whole machine is beautiful and elegant.

(1) outer wall material of the box: high-quality cold-rolled carbon steel plate, the surface is treated by electrostatic spraying;

Inner wall material: 201 stainless steel

Insulation material: high quality ultrafine glass fiber cotton;

Doors and Windows: two pairs of front and rear doors are used to facilitate the installation of samples. The door is equipped with large insulating glass as the visible window, which has a good heat preservation and insulation effect, and can observe the test process arbitrarily. High-temperature-resistant lighting is installed indoors, and the indoor samples in the laboratory are shown in a glance

(2) the heating system is placed in the air duct of the laboratory, and the temperature sensor is installed in the air outlet.

(3) the air supply and circulation system USES high-temperature resistant lengthening motor, stainless steel multi-wing centrifugal wind wheel, and single circulation mode to ensure temperature uniformity.

(4) the control system is installed on the right side of the test box for easy operation

A. High-precision temperature control instrument and schneider and other electrical components constitute the electrical control system.

Specification: precision: 0.1℃ (display range) resolution: ±0.1℃

C. Temperature measuring body: pt100 test sensor

D. Heater: adopt nickel-chromium wire electric heater with porcelain frame, which has small thermal inertia and long service life.By the instrument output controllable pulse duty ratio PID signal, through the solid state relay to control, control smooth, reliable.

(5) watch rack: high temperature resistant electric board suspension watch rack, the board installed table holder, pressure handle, terminal and aviation head, each watch rack can be independently removed for easy maintenance.

(6) electrical source: electrical source can be an independent device, can also be used for supporting, electrical source contains voltage regulator, ammeter, voltmeter, counter and other devices.

Safety protection device

(1) independent overtemperature protector

(2) short circuit protection of heater

(3) timing sound and light alarm

(4) phase sequence protection

Execution standard

1.GB 11158-2008 high temperature test chamber technical conditions

2. Gb2423.2-2008 basic test procedures for electrical and electronic products test B: high temperature test method

3. Gb2424.1-2005 high temperature and low temperature test guidelines for basic environmental test procedures for electrical and electronic products

Equipment operating environment

1. Ambient temperature: 5℃ ~ +28℃ (the average temperature within 24 hours ≤28℃);

2. Ambient humidity: ≤85%;

3. Power: MAX 6.5kw

4. Power supply: AC ? v50hz 3380