Tender For modification in 400 amp. welding transformer.supply, installation and fitting of panel assembly to measure output parameters by analog amperemeter & volt meter with comprises of analog voltmeter(0-100v ac) make - ae/meco-g/rishab or similar. analog ammeter(0-500a ac) make - ae/meco-g/rishab or similar. current ratio transformer (500:5) indo tech/next gen toggle switch/push button , current regulator handle.insulation sleevs, gsket and wiring.