GE MV1526W, MV1526B General Information for Service, General Precautions in USE, Trial Operation

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GENERAL INFORMATION FOR SERVICE

GENERAL PRECAUTIONS IN USE

A.Never operate the unit when it is empty. Operating the oven with no load may shorten the life of the magnetron. Whenever cooking dry foods (dried fish, bread, etc.) or a small amount of food, be sure to put a glass of water into the cooking compartment. The glass turntable may become hot after operating, be careful when touching it.

B.Aluminum foil should be avoided because it will disrupt cooking and may cause arcing. However, small pieces may be used to cover some parts of food to slow the cooking. Any aluminum foil used should never be closer than 2.5 cm to any side wall of the oven.

TRIAL OPERATION

After installation, the following sequences and results should be checked carefully.

A.Put a container filled with water (about 1 liter) into the oven, and close the door tightly.

B.Set cooking time for 10 minutes by touching “1” and then “0” three times. “1, 0, 0, 0” appears in the display window.

C.Touch the START key.

Make sure the cavity light comes on. The unit will begin cooking and the display window will show the time counting down by seconds.

D.After about 5 minutes, make sure the primary interlock switch, the secondary interlock switch and the interlock monitor switch operate properly by opening and closing the door several times. Touch the START key each time the door is closed.

E.Continue operating the unit. Four long beep sound signal is heard when the time is up. The unit will shut off automatically.

F.Confirm the water is hot.

G.Finally, measure the output power according to “POWER OUTPUT MEASUREMENT” on page 7-3.

FEATURES AND SPECIFICATIONS FEATURES

A.The safety systems incorporated in this model are:

(1)Primary interlock switch

(2)Secondary interlock switch

(3)Interlock monitor switch

(4)Choke system

(5)Magnetron thermal fuse

(6)Oven cavity thermostat

(Note: This thermostat located on the oven cavity will open and stop the unit from operation only if a high temperature is reached, such as, a fire created by overcooking food.)

B.Any one of 10 power output levels ranging 100W to 1000W can be selected by the touch control and electronic computer system.

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Contents Microwave Oven Safety Precautions in this ManualPage Table of Contents Specifications Antenna Microwave RadiationGrounding Instructions InstallationControl Panel Operating InstructionsControl Panel Instructions Schematic Diagram Overall Circuit DiagramMatrix Circuit for Touch KEY Board Trial Operation General Information for ServiceGeneral Precautions in USE Features and Specifications FeaturesPreliminary Service InformationPrecautions and Repair Service Tips Equipment Microwave Leakage TestMeasurement with the Outer Case Removed Power Output MeasurementImportant Notes Disassembly InstructionsHOW to Insert the F.P.C. Connector HOW to Remove the F.P.C. ConnectorRemoving the OUT CASEFigure Wire Color Removing the Door Interlock Switches Figures 9,10Removing Magnetron Removing Door Figure Removing the Ventilation FAN ASS’Y Assembling DoorRemoving the Turntable Motor Interlock Mechanism Interlock SystemTest the Latch and Switch Sequence Interlock Continuity Test Components Test Procedure ResultsSwitches HIGH-VOLTAGE Test and Checkout PROCEDURES, and Trouble ShootingTest Procedures MagnetronHIGH-VOLTAGE Diode HIGH-VOLTAGE CapacitorMatrix Circuit for FPC ConnectorTouch KEY Board Connectorkey CON RELAY2 Checkout ProceduresPower Level Checkout Procedures for Fuse BlowingYES Checkout Procedures for Relay Problem aRELAY3 Problem B YES GoodCheckout Procedures for Circuit Board Trouble Shooting Thermostat Page Fuse Exploded View Control Panel Oven Cavity Latch Board Interior 50FZZA Installation Schematic Diagram of P.C.B Printed Circuit Board July

MV1526W, MV1526B specifications

The GE MV1526B and MV1526W are advanced medium-voltage switchgear solutions designed for reliability, efficiency, and safety in various industrial and utility applications. These models from General Electric (GE) represent a significant leap forward in switchgear technology, incorporating state-of-the-art features and benefits for modern electrical systems.

One of the primary features of the MV1526B and MV1526W is their robust construction, designed to withstand the harshest environmental conditions. Built with high-quality materials, these models ensure long-lasting performance while providing superior protection against external elements such as moisture, dust, and extreme temperatures. This durability ensures low maintenance costs and extended service life, making them an excellent choice for long-term investments.

Both models utilize vacuum circuit breaker technology, which is critically important for medium-voltage applications. This technology minimizes arcing during operations, significantly enhancing safety and reducing maintenance periods. The vacuum interrupters are designed to provide superior fault interruption capabilities, ensuring that the electrical systems are safeguarded against overloads and short circuits.

The MV1526B and MV1526W also showcase GE's advanced digital controls and monitoring capabilities. Features such as real-time diagnostics and remote monitoring allow for proactive maintenance, enabling operators to identify potential issues before they escalate. This not only enhances system reliability, it also minimizes downtimes, ultimately resulting in greater operational efficiency.

Another significant characteristic of these models is their compact design. The MV1526B and MV1526W applications are engineered to maximize space while maintaining operational functionality. This compact footprint is particularly advantageous in environments where space is a premium, allowing for easier installations and future expansions.

Moreover, the flexibility of configuration is a standout feature of the MV1526 series. Users can customize their switchgear layout based on specific operational needs, accommodating various configurations for different applications. This adaptability makes the MV1526B and MV1526W suitable for a range of sectors, including energy, manufacturing, and commercial facilities.

In conclusion, the GE MV1526B and MV1526W models exemplify cutting-edge technology and engineering excellence, providing industrial and utility applications with versatile, reliable, and safe medium-voltage solutions. Their advanced features, including vacuum circuit breaker technology, digital monitoring capabilities, robust construction, and compact design, make them ideal choices for modern electrical infrastructure.
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