Switchgear type high temperature rise current system

1SLQ-82 series switchgear with high temperature rise and currentsystemOverview

A high current generator is a type of current source used for testing electrical appliances, such as air circuit breakers, contactors, relays, for temperature rise testing and tripping during thermal and dynamic stability tests.

When measuring three-phase with a single-phase high current generator, phase separation should be carried out;

The three-phase high current generator is mainly used for testing three-phase electrical products, and can also be used for testing single-phase electrical products. The control scheme for three-phase and single-phase high current generators is the same, except that the three-phase high current generator outputs three-phase current.

The high current generator consists of three parts: transformer, voltage regulator, and control.

Working hours: Short term work

At rated output: 2.5 minutes of operation;

At 1/2 rated output, the working time is 30 minutes;

At 1/3 rated output, the working time is 40 minutes;

At 1/4 rated output: long-term use;

Work purpose:

1. For release purposes

2. Used for verifying power supply

3. Used for temperature rise test

4. Low voltage high current source for thermal and dynamic stability of electrical appliances

5. Other parts that require high current coordination

6. The output voltage of the high current generator is generally between 4-10V, and special output requirements can be requested by the user themselves.

7. High current generator output current: 50-30000A

IISLQ-82 series switchgear with high temperature rise and currentsystemTechnical parameters and specifications

The capacity of this device is designed for a 5-minute short-term working system. If used for intermittent work, the power on time should be less than 2.5 minutes, and the working cycle should be greater than 10 minutes. Its specifications and technical parameters are as follows:

Note: 1. Current above 4000A is a split type and can be designed and supplied according to user requirements.

2. Order and supply over 10000A.

This high current generator is a dry-type high current generator supplied by our company, equipped with an autotransformer output voltage (i.e. the input voltage of the generator) to achieve the required high current.

Note: The equipment is powered by AC220V or 380V power supply.

1. There is no voltmeter or S1 switch circuit for 1000A and below.

2. The output external copper wire should be selected according to 3A -/mm2, and its length should not exceed three meters.

3. When the current is high, a corresponding compensation capacitor should be connected in parallel.

3、 Packing List

1. 1 high current generator (booster)

2. 1 set of high current test line (additional according to user's needs)

3. 1 copy of product manual

4. 1 copy of product qualification certificate/warranty card

4、 Usage method

When conducting high current tests, connect the working circuit correctly according to the circuit diagram of this product. Choose the position of the large and small range switches according to the magnitude of the output current. First, return the voltage regulator to zero, then press the start button (green), slowly rotate the handwheel of the voltage regulator clockwise, watch the ammeter until the desired current value is reached. After the test reaches the set time, immediately return the handwheel of the voltage regulator counterclockwise to zero, press the stop button, and cut off the power.

5、 Precautions for use and maintenance

1. During the unpacking inspection, it is necessary to check whether the main circuit wiring terminals are loose and whether the voltage regulator brush is in good contact.

2. When not in use for a long time, use a 500V megohmmeter to check the insulation resistance of the main circuit to ground before use, and the resistance value should not be less than 1.5 megohms.

3. The input voltage should comply with the voltage values indicated on the nameplate (~220V,~380V), with a value difference between -10% and 5%, and a frequency of 50Hz

4. The current switch is not allowed to operate with load.

5. When operating, the handwheel should be rotated evenly and slowly to avoid damaging the regulator.

6. When the output is full, the working time should not exceed 5 minutes, the continuous working time should be less than 2.5 minutes, and the working cycle should be greater than 10 minutes.

7. The casing of the high current generator has a grounding terminal, which should be well grounded during use.